2x100 ml bottles original Testomat® indicator TH 2025 for limit value: 0,25- 2,50°dH for measuring residual hardness.  °dH (resolution): 0,25- 2,50 (0,05) °f (resolution): 0,45-4,48 (0,10) ppm CaCO3 (resolution): 4,48-44,8 (0,9) mmol/l (resolution): 0,04-0,45 (0,01)

Testomat Indicator TH2025 – for Determining Residual Hardness Precise Residual Hardness Measurement with the TH 2025 for Testomat 2000 and Testomat Limit The Testomat Indicator TH2025 from Heyl is a chemical reagent solution for precise determination of residual hardness. It measures in various units (°dH, °f, ppm CaCO₃, and mmoI/I). Enjoy a 3% discount on Heyl products when ordering online in our HeylNeomeris Shop. With the TH2025 indicator, you can determine residual hardness in the range of 0.25 to 2.50 °dH. The 500 ml bottle provides a convenient dosing solution that can be used directly in the measuring device without any complex preparation. Where can the TH2025 Indicator be used? The indicator is suitable for: Testomat 2000 Testomat 2000 CAL Testomat 2000 DUO Testomat 2000 V Testomat 2000 self clean Testomat ECO Testomat ECO-PLUS Testomar EVO TH Testomat Limit What are the measurement ranges? 0.25–2.50 °dH, with a resolution of 0.05 0.45–4.48 °f, with a resolution of 0.10 4.48–44.8 ppm CaCO₃, with a resolution of 0.9 0.04–0.45 mmoI/I, with a resolution of 0.01

2x100 ml bottles original Testomat® indicator TH 2100 for limit value:1,00-10,00°dH°dH for measuring residual hardness. °dH (resolution): 1,00-10,00 (0,20) °f (resolution): 1,79-17,9 (0,40) ppm CaCO3 (resolution): 17,9-179 (3,8) mmol/l (resolution): 0,18 -1,79 (0,04)

Testomat Indicator TH2100 for Determining Elevated Residual Hardness Indicator solution for precise monitoring of residual hardness in the higher limit range 1.00–10.00 °dH The Testomat Indicator TH2100 from Heyl, 500 ml bottle, is an original indicator solution for determining residual hardness in the higher hardness range of 1.00–10.00 °dH in water treatment systems. The bottles are designed for use in Testomat devices and enable continuous and reliable monitoring. The TH2100 indicator is specifically designed for higher residual hardness levels. It supports safe process control in industrial and commercial water treatment systems. What measurement ranges does the TH2100 indicator cover? 1.00–10.00 °dH, resolution 0.20 1.79–17.9 °f, resolution 0.40 17.9–179 ppm CaCO₃, resolution 3.8 0.18–1.79 mmoI/I, resolution 0.04 Which Heyl Testomat devices is the indicator suitable for? The indicators are suitable for: Testomat 2000® Testomat 2000® CAL Testomat 2000® DUO Testomat 2000® V Testomat 2000® self clean Testomat ECO® Testomat ECO®-Plus Testomat® EVO TH Testomat Limit

2x100 ml bottles original Testomat® indicator TH 2250 for limit value: 2,50-25,00°dH for measuring residual hardness.    limit value: °dH (resolution): 2,50-25,00 (0,50) °f (resolution): 4,48-44,8 (0,40) ppm CaCO3 (resolution): 44,8-448 (3,8) mmol/l (resolution): 0,45 -4,48 (0,04)

Original Indicator Testomat Indicator TH2250 in the 500 ml Bottle from Heyl Precise Residual Hardness Measurement for Testomats The Testomat Indicator TH2250, 500 ml bottle, measures residual hardness in water samples and is suitable for use in our measuring devices Testomat 2000, Testomat EVO, and the new limit measuring device Testomat Limit. The measuring range is 2.50–25.00 °dH with a resolution of 0.50. Thanks to precise measurements, it supports compliance with quality standards in industrial water treatment. It is designed for long service life, minimizing maintenance and downtime. The TH2250 indicator allows reliable, automatic determination of residual hardness in water. What limit values can be measured with the TH2250? 2.50–25.00 °dH, resolution 0.50 4.48–44.8 °f, resolution 0.40 44.8–448 ppm CaCO₃, resolution 3.8 0.45–4.48 mmoI/I, resolution 0.04 Where can the indicator be used? The indicators are suitable for: Testomat 2000® Testomat 2000® CAL Testomat 2000® DUO Testomat 2000® V Testomat 2000® self clean Testomat ECO® Testomat ECO®-Plus Testomat® EVO TH Testomat Limit

The 100 ml bottle of original Testomat® indicator TH 2050 for the limit value 0.5- 5,0°dH only for Testomat® EVO TH. One packing unit contains 2 bottles á 100ml.

The 500 ml bottle of original Testomat® indicator TH 2050 for the limit value 0.5 - 5.0 °dH only for Testomat® EVO TH and Testomat® LAB TH.

Testomat LAB CL – Online Measuring Transmitter for Total Chlorine and Free Chlorine Precise chlorine monitoring device from Heyl for water treatment systems The Testomat LAB CL is a wet-chemical online measuring transmitter for the precise analysis of total chlorine or free chlorine in water. The Testomat has been developed for use in multi-parameter systems and for connection to higher-level control systems. The analysis is based on the DPD method in accordance with EN ISO 7393-2: two reagents are dosed, and after a reaction time of approximately 60 seconds, the measurement result is available. Integrated data storage on an SD or SDHC card in CSV format simplifies operation and evaluation. Measurement values, status messages, and error messages can be transmitted to higher-level control systems via the 4–20 mA output and the RS232 interface. Device features and benefits The Testomat LAB CL impresses with precise and reliable chlorine analysis based on DPD photometry in a measuring range of 0–5 mg/l. Thanks to its design and flexible interfaces, the device can be easily integrated into existing systems. Automatic data storage, simple operation, and low-maintenance components ensure efficient operation. Wide range of applications Monitoring water quality in water treatment and drinking water facilities Process monitoring Monitoring chlorine concentration in cooling tower processes Connection to higher-level control systems Which functionalities make the Testomat LAB stand out in chlorine measurement? The Testomat LAB CL and CL-R feature innovative measurement technology: RS232 interface for transmission of measurement values and error messages Parameterization via SD card or the “Servicemonitor” software using Mini-USB (device side) to USB 2.0 (e.g. PC or notebook) Multilingual menu navigation in German, English, French, Dutch, and Portuguese Firmware update via SD card Compact design Optimized water detection based on an optical measurement principle Integrated self-test with continuous monitoring Optimized reagent set for total chlorine measurement (reduction from three to two reagents) Additional functions of the CL-R version Parameterization and reading of device parameters via the RS232 interface. Proven performance profile of the Testomat device family Highly accurate peristaltic pumps Reliable, low-maintenance operation Minimal reagent and water consumption 4–20 mA analog output for transmission of measurement values RS232 interface for transmission of measurement values and fault messages Common alarm output Optimized reagents: only two reagents required for total chlorine determination Optimized reagent containers with matched fill volumes so that both containers are depleted at the same time Analysis triggering Automatic interval operation (interval pause adjustable from 10 to 60 minutes) Measurement phase mode (start signal triggers a sequence of analyses lasting from 10 minutes up to 12 hours) External analysis input (start/stop) Manual start Optional accessories OLED display Protective cover to increase the IP protection class

The Testomat® LAB CL is a robust wet chemical online measuring converter to measure the concentration of total chlorine or free chlorine in the measuring range 0 - 5 mg/l. The instrument is suitable for controlling the water quality of water treatment plants, drinking water plants, process water monitoring and for monitoring the chlorine concentration in the cooling tower process. Instrument operation is based on the DPD method according to EN ISO 7393-2. The analysis is carried out through the addition of two reagents and the measurement result is obtained after a reaction time of approx. 60 seconds (pure measurement time without flush time). In view of the fact that the Testomat® LAB CL was developed for use in multi-parameter systems or for connection to a higher-level control system, we hereby offer you the Testomat® LAB CL in combination with the NeoTecMaster® Multi Channel Controller, which was specially developed by our company, as a package solution at a preferential price. The 4-channel NeoTecMaster® multi-parameter controller included in this package enables the processing of up to four measurement signals in this version. A signal input, in this case the RS232 interface, is used by the Testomat® LAB CL to display the measured value, the trend and the status messages on the 5 inch screen. In addition to the on board RS232 interface, the NeoTecMaster® also has a Modbus RTU input, which you can use freely after brief technical consultation with us. (Pre-check whether your existing measurement technology to be integrated requires adjustments). The NeoTecMaster® can be systematically supplemented with further optional NeoTec modules (function / signal converter modules) as required, thus enabling the future realisation of further control concepts in a flexible manner. Two modules that fundamentally expand the range of functions and are already included in the scope of delivery are our NeoTec slave relay module and the 4x 4-20mA output module. This allows you to add potential-free relay contacts to the overall system and to realise linear or inverted dosing processes via the 4x 4-20mA output module. You can freely assign the relay contacts to the incoming measurement signals and thus, for example, also implement simple limit value-related control concepts, as well as output measurement value-related messages. Via the 4-20mA output module, you can also forward the measured values to a higher-level controller as desired.  Further advantages of the NeoTecMaster:  Simple operation  Integration of the Testomat® world of instruments, here in conjunction with the Testomat® LAB CL  Integration into the existing control cabinet, alternatively we offer our NeoTecMaster® housing  Modular range of functions can be extended by NeoTec slave and signal converter modules (measurement, control, regulation) Available as built-in or surface-mounted variant Structured continuous data recording on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format  In addition, there are proven Testomat® LAB functionalities: Optimised water detection based on an optical measuring method  RS232 interface for transmission of measured values and error messages  Import and export of settings (basic programming)  Logging of measurement data and messages/alarms via integrated SD card or optionally usable SDHC card (2GByte)  Firmware update via SD card  Integrated self-test with continuous monitoring  Automatic venting of the indicator line Performance profil Testomat® LAB CL:  High-precision peristaltic pumps Reliable and low-maintenance operation Minimal reagent and water consumption Analog output 4 - 20 mA for transmission of measured values RS232 interface for transmission of measured values & fault messages Execution of parameterisation by means of SD card or "Service Monitor" software via mini-USB (on the unit side) to USB 2.0 (e.g. PC/notebook)  Multilingual software menu in German, English, French, Dutch, Portuguese Compact design  Common alarm output Optimised reagents: Only 2 reagents for the determination of total chlorine Optimised reagent set: filling quantities are coordinated so that the reagent set is used up almost evenly Analysis triggering: Automatic interval operation (interval pause adjustable from 10-60 minutes) Measuring phase mode (start impulse triggers a sequence of analyses for a period of 10 minutes to 12 hours) External analysis input (start/stop) Hand start Optional accessories available:  OLED display for Testomat® LAB Protective cover to increase the IP protection class of the Testomat® LAB NeoTecMaster instrument cover

Testomat LAB Monochloramine – Analyzer for Monochloramine Continuous measurement of monochloramine using the DPD method The Testomat LAB Monochloramine NH2CL is an online analyzer designed for the continuous photometric determination of monochloramine in process and drinking water. The measuring range for monochloramine (NH2CL, calculated as Cl2) is 0 to 5 ppm (resolution 0.1). The analysis is performed by dosing two reagents. After a reaction time of approximately 60 seconds, the measurement result is available. The Testomat LAB NH2CL has been developed for use in multi-parameter systems and for connection to higher-level control systems. Key performance features of the Testomat LAB for monochloramine measurement Maintenance requirements are low thanks to minimal reagent consumption and optimized water detection. A multilingual menu structure as well as parameterization via SD card or the Servicemonitor software make installation and adaptation to individual measurement tasks particularly user-friendly. In addition to the 4–20 mA output for transmitting measurement values, this series is equipped with an RS232 interface for transmitting measurement data as well as error and status messages. All data are continuously recorded on the integrated SD card or an optional SDHC card (2 GB) in CSV format and are available at any time for detailed evaluation. Technical highlights and performance profile of the Testomat LAB for monochloramine monitoring Technical features include peristaltic pumps, a space-saving design, automatic venting of the indicator line, an integrated self-test, and firmware update capability via SD card. The Monochloramine NH2CL and NH2CL-R stand out with the following functionalities: RS232 interface for transmission of measurement values and error messages Parameterization via SD card or the “Servicemonitor” software (Mini-USB device side to USB 2.0, e.g. PC or notebook) Multilingual menu navigation (German, English, French, Dutch) Firmware update via SD card Compact design Optimized water detection based on an optical measurement principle Integrated self-test with continuous monitoring Optimized reagent set with reduction from three to two reagents Proven performance profile Highly accurate peristaltic pumps Reliable, low-maintenance operation Minimal reagent and water consumption 4–20 mA analog output for transmission of measurement values RS232 interface for transmission of measurement values and fault messages Common alarm output Optimized reagents: only two reagents required for monochloramine determination Optimized reagent containers with matched fill volumes so that both containers are depleted at the same time Additional functions of the NH2CL-R version Parameterization and reading of device parameters via the RS232 interface. Analysis triggering: Automatic interval operation (interval pause adjustable from 10 to 60 minutes) Measurement phase mode (start signal triggers a sequence of analyses for 10 minutes up to 12 hours) External analysis input (start/stop) Manual start Optional accessories OLED display Protective cover to increase the IP protection class Where can the Testomat be used? Monitoring water quality in water treatment and drinking water systems Process monitoring Monitoring monochloramine concentration in cooling tower processes Connection to higher-level control systems

The Testomat® LAB Monochloramine (NH2CL) is an online analyser that photometrically measures the content of monochloramine in process water and is used for continuous monitoring of process quality, for example in cooling circuits. Another area of application is the use in the environment of water treatment and drinking water plants, for process monitoring, as well as monitoring the decay behaviour in cooling towers after shock chlorination. The measuring range for monochloramine (NH2CL, calculated as Cl2) is 0 to 5 ppm (resolution 0.1). The instrument works according to the DPD method based on EN ISO 7393-2 and the analysis is carried out by adding two reagents. After a reaction time of approx. 60 seconds (dosing and measuring time without rinsing time) the measuring result is available.  For the transmission of the measured values, in addition to the 4-20mA signal output, an RS232 interface is available for the transmission of the measured values as well as error & status messages. Furthermore, all data are continuously recorded on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format and can be used for detailed observations at any time.  In view of the fact that the Testomat® LAB Monochloramine was developed for use in multi-parameter systems or for connection to a higher-level control system, we hereby offer you the Testomat® LAB Monochloramine in conjunction with the NeoTecMaster® Multicontroller, which was specially developed by our company, as a package solution at a preferential price. The 4-channel NeoTecMaster® Multicontroller included in this package enables the processing of up to four measurement signals in this version. One signal input on the NeoTecMaster®, in this case the RS232 interface, is used by Testomat® LAB Monochloramine to display the measured value, the trend and the status messages on the 5 inch screen. In addition to the RS232 interface, the NeoTecMaster® also has a Modbus RTU input, which you can use freely after brief technical consultation with us. (Pre-check whether your existing measurement technology to be integrated requires adjustments). The NeoTecMaster® can be systematically supplemented with further optional NeoTec modules (function / signal converter modules) as required. This allows the future realisation of further control concepts in a flexible way. Two modules which fundamentally extend the range of functions and are already included in the scope of delivery are our NeoTec slave relay module and the 4x 4-20mA output module. This allows you to add potential-free relay contacts to the overall system and to realise linear or inverted dosing processes via the 4x 4-20mA output module. You can freely assign the relay contacts to the incoming measurement signals and thus, for example, also implement simple limit value-related control concepts, as well as output measurement value-related messages. Via the 4-20mA output module, you can also forward the measured values to a higher-level controller as desired. Further advantages of the NeoTecMaster:  Simple operation Integration of the Testomat® world of instruments, here in connection with the Testomat® LAB Monochloramine  Integration into the existing control cabinet, alternatively we offer you our NeoTecMaster® housing  Modular range of functions can be extended by NeoTec slave and signal converter modules (measurement, control, regulation)  Available as built-in or surface-mounted variant  Structured continuous data recording on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format  In addition, there are proven Testomat® LAB functionalities:  Optimised water detection based on an optical measuring method  RS232 interface for transmission of measured values and error messages  Import and export of settings (basic programming)  Logging of measurement data and messages/alarms via integrated SD card or optionally usable SDHC card (2GByte)  Firmware update via SD card  Integrated self-test with continuous monitoring  Automatic venting of the indicator line Performance profil Testomat® LAB Monochloramine:  High-precision peristaltic pumps Reliable and low-maintenance operation Minimal reagent and water consumption Analog output 4 - 20 mA for transmission of measured values RS232 interface for transmission of measured values & fault messages Execution of parameterisation by means of SD card or "Service Monitor" software via mini-USB (on the unit side) to USB 2.0 (e.g. PC/notebook)  Multilingual software menu in German, English, French, Dutch Compact design  Common alarm output Optimised reagents: Only 2 reagents for the determination of monochloramine (NH2CL) Optimised reagent set: filling quantities are coordinated so that the reagent set is used up almost evenly Analysis triggering: Automatic interval operation (interval pause adjustable from 10-60 minutes) Measuring phase mode (start impulse triggers a sequence of analyses for a period of 10 minutes to 12 hours) External analysis input (start/stop) Hand start Optional accessories available:  OLED display for Testomat® LAB Protective cover to increase the IP protection class of the Testomat® LAB NeoTecMaster instrument cover

The Testomat® LAB TH determines the water hardness (residual total hardness) fully automatically by use of titration and has been developed for monitoring the water quality of water treatment plants, drinking water plants, industrial boilers and for monitoring process water and the Testomat® LAB CL is a robust, wet chemical online measuring converter to measure the concentration of total chlorine or free chlorine in the measuring range 0 - 5 mg/l. The instrument is suitable for controlling the water quality of water treatment plants, drinking water plants, process water monitoring and for monitoring the chlorine concentration in the cooling tower process. Instrument operation is based on the DPD method according to EN ISO 7393-2. The analysis is carried out through the addition of two reagents and the measurement result is obtained after a reaction time of approx. 60 seconds (pure measurement time without flush time). In view of the fact that the Testomat® LAB TH and Testomat® LAB CL was developed for use in multi-parameter systems or for connection to a higher-level control system, we hereby offer you both Testomat® LAB analysis devices in combination with the NeoTecMaster®, which was specially developed by our company, as a package solution at a preferential price. The 4-channel NeoTecMaster® multi-parameter controller included in this package enables the processing of up to four measurement signals in this version. A signal input on the NeoTecMaster® , in this case the RS232 interface and one additional RS232 interface on the included NeoTec Slave module , are used by Testomat® LAB TH and Testomat® LAB CL to display the measured value, the trend and the status messages on the 5 inch screen. In addition to the on board RS232 interface, the NeoTecMaster® also has a Modbus RTU input, which you can use freely after brief technical consultation with us. (Pre-check whether your existing measurement technology to be integrated requires adjustments). The NeoTecMaster® can be systematically supplemented with further optional NeoTec modules (function / signal converter modules) as required, thus enabling the future realisation of further control concepts in a flexible manner. A module that fundamentally expands the range of functions and is already included in the scope of delivery is our NeoTec slave relay module with which you can add potential-free relay contacts to the overall system. You can freely assign these to the incoming measurement signals and thus, for example, implement limit value-related control concepts, as well as output measurement-related messages.  Further advantages of the NeoTecMaster:  Simple operation Integration of the Testomat® world of instruments, here in conjunction with the Testomat® LAB TH and Testomat® LAB CL  Integration into the existing control cabinet, alternatively we offer our NeoTecMaster® housing  Modular range of functions can be extended by NeoTec slave and signal converter modules (measurement, control, regulation) Available as built-in or surface-mounted variant Structured continuous data recording on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format  In addition, there are proven Testomat® LAB functionalities:  Optimised water detection based on an optical measuring method  RS232 interface for transmission of measured values and error messages  Import and export of settings (basic programming)  Logging of measurement data and messages/alarms via integrated SD card or optionally usable SDHC card (2GByte)  Firmware update via SD card  Execution of parameterisation by means of SD card or "Service Monitor" software via mini-USB (on the unit side) to USB 2.0 (e.g. PC/notebook)  Multilingual software menu in German, English, French, Dutch; Portuguese Integrated self-test with continuous monitoring  Automatic venting of the indicator line  Compact design  Performance profil Testomat® LAB TH:  High-precision titration by means of piston metering pump  Reliable and low-maintenance operation  Minimal indicator and water consumption  Analogue output 4 - 20 mA for transmission of measured values  Programmable hardness unit in °dH, °f, ppm CaCO3, mmol/l  Collective alarm output  Indicator quantities: 500 ml bottles  Analysis trigger:  - Automatic interval operation (interval pause adjustable from 0-255 minutes)  - External analysis input (start/stop)  - Manual start  Performance profil Testomat® LAB CL:  High-precision peristaltic pumps Reliable and low-maintenance operation Minimal reagent and water consumption Analog output 4 - 20 mA for transmission of measured values RS232 interface for transmission of measured values & fault messages Common alarm output Optimised reagents: Only 2 reagents for the determination of total chlorine Optimised reagent set: filling quantities are coordinated so that the reagent set is used up almost evenly. Analysis trigger: Automatic interval operation (interval pause adjustable from 0-255 minutes) External analysis input (start/stop) Manual start  Optional accessories available:  OLED display  Protective cover to increase the IP protection class of the Testomat® LAB devices  NeoTecMaster instrument cover

The Testomat® LAB TH determines the water hardness (residual total hardness) fully automatically by use of titration and has been developed for monitoring the water quality of water treatment plants, drinking water plants, industrial boilers and for monitoring process water. In view of the fact that the Testomat® LAB TH was developed for use in multi-parameter systems or for connection to a higher-level control system, we hereby offer you the Testomat® LAB TH in combination with the NeoTecMaster®, which was specially developed by our company, as a package solution at a preferential price. The 4-channel NeoTecMaster® multi-parameter controller included in this package enables the processing of up to four measurement signals in this version. A signal input on the NeoTecMaster®, in this case the RS232 interface, is used by Testomat® LAB TH to display the measured value, the trend and the status messages on the 5 inch screen. In addition to the RS232 interface, the NeoTecMaster® also has a Modbus RTU input, which you can use freely after brief technical consultation with us. (Pre-check whether your existing measurement technology to be integrated requires adjustments).  The NeoTecMaster® can be systematically supplemented with further optional NeoTec modules (function / signal converter modules) as required, thus enabling the future realisation of further control concepts in a flexible manner. A module that fundamentally expands the range of functions and is already included in the scope of delivery is our NeoTec slave relay module with which you can add potential-free relay contacts to the overall system. You can freely assign these to the incoming measurement signals and thus, for example, implement limit value-related control concepts, as well as output measurement-related messages. Further advantages of the NeoTecMaster:  Simple operation Integration of the Testomat® world of instruments, here in conjunction with the Testomat® LAB TH  Integration into the existing control cabinet, alternatively we offer our NeoTecMaster® housing  Modular range of functions can be extended by NeoTec slave and signal converter modules (measurement, control, regulation) Available as built-in or surface-mounted variant Structured continuous data recording on the integrated SD card or optionally available SDHC card (2Gbyte) as a file in CSV format  In addition, there are proven Testomat® LAB TH functionalities:  Optimised water detection based on an optical measuring method  RS232 interface for transmission of measured values and error messages  Import and export of settings (basic programming)  Logging of measurement data and messages/alarms via integrated SD card or optionally usable SDHC card (2GByte)  Firmware update via SD card  Execution of parameterisation by means of SD card or "Service Monitor" software via mini-USB (on the unit side) to USB 2.0 (e.g. PC/notebook)  Multilingual software menu in German, English, French, Dutch, Portoguese  Integrated self-test with continuous monitoring  Automatic venting of the indicator line  Compact design  Proven performance profil: High-precision titration by means of piston metering pump  Reliable and low-maintenance operation  Minimal indicator and water consumption  Analogue output 4 - 20 mA for transmission of measured values  Programmable hardness unit in °dH, °f, ppm CaCO3, mmol/l  Collective alarm output  Indicator quantities: 500 ml bottles  Analysis trigger:  - Automatic interval operation (interval pause adjustable from 0-255 minutes)  - External analysis input (start/stop)  - Manual start  Optional accessories available:  OLED display  Protective cover to increase the IP protection class of the Testomat® LAB TH  NeoTecMaster instrument cover