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Water analysis with the first patented long-life liquid indicator solution:
Accurate dosing in our Testomat® instruments, easy handling and long shelf life make Heyl indicators the preferred high-performance liquid indicator system to measure your desired water parameters.
Depending on the type of instrument and analysis parameter, our indicators are available in 100 ml or 500 ml per bottle.

You can measure the following parameters in the hardness range with our original indicators:

  • Residual hardness
  • Carbonate hardness
  • minus m-value
  • p-value


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Testomat® 808 indicator 300
Testomat® 808 indicator 300
Product number: 140001
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.  

€73.00*
Details
Testomat® 808 indicator 300 500 ml
Testomat® 808 indicator 300 500 ml
Product number: 141001
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    

€101.00*
Details
Testomat® 808 indicator 300S 2 x 100 ml
Testomat® 808 indicator 300S 2 x 100 ml
Product number: 140002
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.  

€77.20*
Details
Testomat® 808 indicator 300S 500 ml
Testomat® 808 indicator 300S 500 ml
Product number: 141002
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  

€101.00*
Details
Testomat® 808 indicator 301 2 x 100 ml
Testomat® 808 indicator 301 2 x 100 ml
Product number: 140003
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.    

€77.20*
Details
Testomat® 808 indicator 301 500 ml
Testomat® 808 indicator 301 500 ml
Product number: 141003
500 ml bottle original Testomat® 808/BOB indicator 301 for measuring residual hardness.   Limit value:  0,1°dH residual hardness 0.178 °fH 1.78 ppm CaCO3 0.0178 °mmol/l

€101.00*
Details
Testomat® 808 indicator 302 2 x 100 ml
Testomat® 808 indicator 302 2 x 100 ml
Product number: 140004
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.    

€77.20*
Details
Testomat® 808 indicator 302 500 ml
Testomat® 808 indicator 302 500 ml
Product number: 141004
500 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

€101.00*
Details
Testomat® 808 indicator 303
Testomat® 808 indicator 303
Product number: 141005
500 ml bottle original Testomat® 808/BOB indicator 303 for measuring residual hardness.   Limit value:  0,3°dH residual hardness 0.534 °fH 5.34 ppm CaCO3 0.0534 °mmol/l

€101.00*
Details
Testomat® 808 indicator 303 2 x 100 ml
Testomat® 808 indicator 303 2 x 100 ml
Product number: 140005
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.

€77.20*
Details
Testomat® 808 indicator 305 2 x 100 ml
Testomat® 808 indicator 305 2 x 100 ml
Product number: 140006
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.  

€77.20*
Details
Testomat® 808 indicator 305 500 ml
Testomat® 808 indicator 305 500 ml
Product number: 141006
500 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

€101.00*
Details
Testomat® 808 indicator 310
Testomat® 808 indicator 310
Product number: 141007
500 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

€101.00*
Details
Testomat® 808 indicator 310 2 x 100 ml
Testomat® 808 indicator 310 2 x 100 ml
Product number: 140007
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.  

€77.20*
Details
Testomat® 808 indicator 320 2 x 100 ml
Testomat® 808 indicator 320 2 x 100 ml
Product number: 140008
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.  

€77.20*
Details
Testomat® 808 indicator 320 500 ml
Testomat® 808 indicator 320 500 ml
Product number: 141008
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  

€101.00*
Details
Testomat® 808 indicator 330
Testomat® 808 indicator 330
Product number: 141009
500 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

€101.00*
Details
Testomat® 808 Indicator 330 2 x 100 ml
Testomat® 808 Indicator 330 2 x 100 ml
Product number: 140009
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.  

€77.20*
Details
Testomat® 808 indicator 350 500 ml
Testomat® 808 indicator 350 500 ml
Product number: 141010
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

€165.60*
Details
Testomat® Indicator C10 500 ml
Testomat® Indicator C10 500 ml
Product number: 141021
500 ml bottle original Testomat® indicator C10 for measuring carbonate hardness with Testomat® C-BOB. limit value:1 °dH carbonate hardness/ alkalinity

€137.20*
Details
Testomat® indicator C15
Testomat® indicator C15
Product number: 140022
100 ml bottles original Testomat® indicator C15 for measuring carbonate hardness with Testomat® C-BOB. limit value:1,5 °dH carbonate hardness   Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.

€78.80*
Details
Testomat® indicator C20 500 ml
Testomat® indicator C20 500 ml
Product number: 141023
500 ml bottle original Testomat® Indicator C20 for measuring carbonate hardness with Testomat® C-BOB. limit value:2 °dH carbonate hardness / alkalinity

€137.20*
Details
Testomat® indicator C30 500 ml
Testomat® indicator C30 500 ml
Product number: 141024
500 ml bottle original Testomat® Indicator C30 for measuring carbonate hardness with Testomat® C-BOB. limit value:3 °dH carbonate hardness/ alkalinity

€137.20*
Details
Testomat® Indicator C5
Testomat® Indicator C5
Product number: 140020
100 ml bottles original Testomat® Indicator C5 for measuring carbonate hardness / alkalinity with Testomat® C-BOB. limit value:0,5 °dH carbonate hardness   Please notice, that 100 ml. bottles are only available in packages of 2 or 3 pieces.

€78.80*
Details
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