500 ml bottle original Testomat® 808/BOB indicator 300 for measuring residual hardness.   Limit value:  0,02°dH residual hardness 0.0356 °fH 0.356 ppm CaCO3 0.00356 °mmol/l   Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.  

500 ml bottle original Testomat® 808/BOB 300 indicator for measuring residual hardness.   Limit value:  0,02°dH residual hardness 0.0356 °fH 0.356 ppm CaCO3 0.00356 °mmol/l    

100 ml bottle original Testomat® 808/BOB indicator 300S for measuring residual hardness.     Limit value:  0,05° dH residual hardness 0.089 °fH 0.89 ppm CaCO 0.0089 °mmol/l       Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.  

500 ml bottle original Testomat® 808/BOB indicator 300S for measuring residual hardness.   Limit value:  0,05° dH residual hardness 0.089 °fH 0.89 ppm CaCO3 0.0089 °mmol/l  

100 ml bottle original Testomat® 808/BOB indicator for measuring residual hardness.   Limit value:  0,1° dH residual hardness 0.178 °fH 1.78 ppm CaCO3 0.0178 °mmol/l         Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.    

Testomat 808 Indicator 301 – Precise Measurement Original indicator solution, reliable determination of residual hardness in water The Testomat 808 Indicator 301, 500 ml bottle from Heyl, is an original indicator for the exact measurement of residual hardness with a threshold of 0.1 °dH. Suitable for the Testomat 808 and Testomat F-BOB devices. The Indicator 301 is reliable for monitoring residual hardness. It allows safe process control with minimal maintenance effort. Highly Precise Residual Hardness Determination The Testomat 808 Indicator 301 from Heyl is a specially developed original indicator for highly precise determination of residual hardness in water treatment systems. It is precisely calibrated to the measurement methodology of the Testomat 808 and Testomat F-BOB and ensures reliable detection of residual hardness up to a threshold of 0.1 °dH. Using the original Heyl indicator guarantees consistent measurement quality, as reaction behavior, color change, and stability are optimized for the device parameters. Only by using the original Testomat 808 Indicator can proper device functionality be ensured and the corresponding device warranty maintained.

100 ml bottle original Testomat® 808/BOB indicator 302 for measuring residual hardness.     Limit value:  0,2° dH residual hardness 0.356 °fH 3.56 ppm CaCO3 0.0356 °mmol/l           Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.    

Testomat® 808 Indicator 302 500 ml Residual hardness threshold: 0.2 °dH for Testomat® 808 The Testomat 808 Indicator 302, 500 ml bottle, is designed for threshold monitoring of residual hardness at 0.2 °dH in water samples through color change. Indicator 302 enables precise measurement of residual hardness. It is optimized for the Testomat 808 and F-BOB to detect limescale deposits early. Precise Residual Hardness Monitoring at 0.2 °dH The Testomat® 808 Indicator 302 is a specially calibrated original indicator for reliable threshold monitoring of residual hardness in water samples at 0.2 °dH. The indicator solution is specifically designed for use with the Testomat® 808 and Testomat® F-BOB, enabling precise water hardness measurement through a clearly defined color change. Even the smallest deviations can be detected early, effectively preventing limescale deposits in downstream systems. Manufacturer Warranty and Original Indicators Full operational reliability and warranty claims for Testomat® devices can only be guaranteed when using original indicators. Using the original Indicator 302 ensures that measurement accuracy, device protection, and long-term reliability meet the manufacturer’s specifications.

Testomat 808 Indicator 303 – Precise Residual Hardness Measurement Original indicator solution for determining residual hardness The Testomat 808 Indicator 303, 500 ml bottle from Heyl, is an original indicator solution for measuring residual hardness through color change with the Testomat 808 and Testomat F-BOB. It provides clear results at a threshold of 0.1 °dH. Indicator 303 is designed for residual hardness monitoring. With minimal maintenance, it enables safe process control. Highly Precise Residual Hardness Monitoring The Testomat 808 Indicator 303 from Heyl is a specially developed original indicator solution for precise measurement of residual hardness in water samples through a clearly defined color change. It is optimally calibrated for use with the Testomat 808 and Testomat F-BOB and delivers reliable measurement results at a threshold of 0.1 °dH. Thanks to its exact adaptation to the measurement methodology of the devices, it ensures high measurement accuracy and reproducibility. Deviations can be detected early, effectively preventing limescale formation. Manufacturer Warranty and Original Indicators The manufacturer’s warranty for Testomat® devices can only be guaranteed when using Heyl original indicators.

100 ml bottle original Testomat® 808/BOB indicator for measuring residual hardness.   Limit value:  0,3° dH residual hardness 0.534 °fH 5.34 ppm CaCO3 0.0534 °mmol/l     Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.

100 ml bottle original Testomat® 808/BOB indicator 305 for measuring residual hardness.   Limit value:  0,5° dH residual hardness 0.89 °fH 8.9 ppm CaCO3 0.089 °mmol/l     Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.  

The Testomat 808 Indicator 305, 500 ml bottle, is an original indicator solution for measuring residual hardness with a threshold of 0.5 °dH. The indicator is specially designed for Testomat 808 and Testomat F-BOB devices, providing precise and reliable measurement results. Benefits of the Original Testomat 808 Indicator 305 from Heyl The Testomat 808 Indicator 305 is optimally matched to the requirements of Testomat 808 and Testomat F-BOB devices and ensures reliable results during continuous operation. Your Advantages When Using Original Heyl Indicators at a Glance Maximum Measurement Accuracy: Precisely defined composition for reproducible and accurate residual hardness measurements. Perfect Device Compatibility: 100 % matched to Testomat 808 and Testomat F-BOB – no calibration issues or incorrect measurements. Reliable Process Monitoring: Ideal for continuous monitoring of residual hardness. System Protection: Early and reliable detection of limit value exceedances protects downstream processes and components. Warranty and Safety Through Original Heyl Quality Using the original Testomat 808 Indicator 305 ensures that the manufacturer-specified measurement accuracy, functional safety, and device lifespan are fully maintained. Using original indicators is a prerequisite for: proper operation of Testomat measuring devices maintaining warranty and guarantee claims compliant and reliable process control With the original indicator, you invest in measurement reliability, process stability, and long-term operational safety – without compromise.

Original Testomat 808 Indicator 310 from Heyl for Residual Hardness Monitoring Residual hardness threshold: 1 °dH for Testomat 808 and F-BOB The Testomat 808 Indicator 310, 500 ml bottle, measures the residual hardness in water as a threshold monitor with color change for the Testomat 808 and F-BOB. The threshold is set at 1 °dH. The Indicator 310 enables reliable threshold measurement of residual hardness through a color reaction. Benefits of the Original Testomat 808 Indicator 310 The Testomat 808 Indicator 310 is the original indicator solution from Heyl for monitoring residual hardness in water with a threshold of 1 °dH. Its clearly defined color change ensures safe and easily readable measurement results on the Testomat 808 and F-BOB devices. Your Advantages When Using Heyl Original Indicators for Testomat 808 at a Glance Reliable Threshold Measurement: Clear indication via green or red signal for safe detection of residual hardness exceeding 1 °dH. Optimized for the Measuring Device: Specifically designed for Testomat 808 and Testomat F-BOB – ensures trouble-free operation and precise results. High Process Reliability: Ideal for continuous monitoring of residual hardness in water-carrying processes. Consistent Indicator Quality: Ensures reproducible results throughout the entire usage period. Warranty and Operational Safety with Original Indicator 310 for Testomat 808 from Heyl Using the original Testomat 808 Indicator 310 is crucial for reliable measurement function and proper operation of the Testomat devices. Using original indicators ensures: compliance with manufacturer specifications full measurement accuracy and operational reliability retention of warranty and guarantee claims long-term protection for downstream systems With the original Testomat 808 Indicator 310, you rely on dependable threshold monitoring, stable processes, and maximum operational safety.

100 ml bottle original Testomat® 808/BOB indicator 310 for measuring residual hardness.   Limit value:  1°dH residual hardness 1.78 °fH 17.8 ppm CaCO3 0.178 °mmol/l   Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.  

100 ml bottle original Testomat® 808/BOB indicator 320 for measuring residual hardness.   Limit value:  2° dH residual hardness 3.56 °fH 35.6 ppm CaCO3 0.356 °mmol/l   Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.  

500 ml bottle original Testomat® 808/BOB indicator 320 for measuring residual hardness.   Limit value:  2°dH residual hardness 3.56 °fH 35.6 ppm CaCO3 0.356 °mmol/l  

Heyl Testomat 808 Original Indicator 330 Residual hardness threshold measurement with the Testomat 808 The Testomat 808 Indicator 330, 500 ml bottle, is used for measuring residual hardness. Indicator 330 monitors residual hardness at a value of 1.5 °dH and is suitable for use with the Testomat 808 and F-BOB devices. Testomat 808 Indicator 330 – Reliable Residual Hardness Monitoring at 1.5 °dH The Testomat 808 Indicator 330 was specifically developed for monitoring residual hardness in water treatment. With a defined threshold of 1.5 °dH, this indicator solution is ideal for applications with the corresponding water hardness. It is fully compatible with Testomat 808 and Testomat F-BOB devices and ensures stable, continuous measurement in your water treatment processes. The original indicator from Heyl provides a clear and reliable color change, allowing for a quick assessment of water quality. Using the original indicator solution ensures high process reliability and supports uninterrupted operation of your systems. Heyl Original Indicator – Your Safety for Measurement, Device, and Warranty Using the original Testomat 808 Indicator 330 is an essential part of reliable residual hardness monitoring. Only original indicator solutions ensure that the manufacturer’s specified measurement accuracy and functional parameters are consistently maintained. At the same time, using the original indicator ensures: the retention of warranty and guarantee claims proper operation of the measuring devices precise measurement results and long-term investment and operational security

100 ml bottle original Testomat® 808/BOB indicator 330 for measuring residual hardness.   Limit value:  3° dH residual hardness 5.34 °fH 53.4 ppm CaCO3 0.534 °mmol/l       Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.  

500 ml bottle original Testomat® 808/BOB indicator 350 for measuring residual hardness.   Limit value:  5°dH residual hardness 8.93 °fH 89.3 ppm CaCO3 0.893 °mmol/l