HM Digital

HM Digital is a leading supplier of water testing equipment around the world. We have included six test meters in our range - the pH-80, COM-80, COM-100, EC-3, EC-3M, and TDS-3. These hand held meters fit the needs for most requirements for hydroponics, aquaponics and aquarium applications.

HM Digital

PH-80

HM Digital
891144000175
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HM Digital PH-80
  • Description
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  • Specifications
  • Measures pH & Temperature
  • One touch, automatic digital calibration
  • Water resistant
  • Simultaneous Temperature display
  • Sleek lightweight design
  • Large easy to read display
  • 0 - 14 measurement range
  • automatic temperature compensation

 

NOTE: Each PH-80 is shipped with the sponge in the cap dry.  Prior to use, pour a small amount of storage solution from the mylar packet into the sponge so that the sponge is moist. (not dripping wet) Put the cap back on and allow to soak for 15 minutes (standing upright) prior to use.  Additional electrode storage solution is available for purchase.

 

 pH Range:  0 - 14  
 Temperature Range:  1-80 °C
 Resolution:  0.1 pH; Temperature resolution is 0.1 °C/F 
 Accuracy:   +/- 0.2 pH; Temperature accuracy is +/-2%
 Calibration:   Digital automatic calibration (one point) 
 Electrode:   Glass sensor and reference tube electrodes 
 Housing:   Water resistant 
 Power source:   3 x 1.5V button cell batteries (model LR44 or equivalent; included) 
 Dimensions:   15.3 x 3.2 x 1.8 cm
 Weight:   53.9g

COM-80

HM Digital
891144000229
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HM Digital COM-80
  • Description
  • More Details
  • Specifications
  • Measures EC, TDS and temperature
  • digital calibration
  • data hold and battery indicator
  • large easy to read screen
  • splash proof / water resistant

 EC Range:  0 - 9990 uS  
 TDS Range:  0 - 8560 ppm (mg/L) 
 Temperature Range:  0 - 80 °C
 Resolution:  EC: 0.1uS   TDS: 01ppm   Temperature resolution is 0.1 °C 
 Accuracy:   +/- 2 %
 Calibration:   Digital by push button
 Probe:   Detachable, with platinum electrodes 
 Housing:   Waterproof (submersible)
 Power source:   3 x 1.5V button cell batteries (included) 
 Dimensions:   18.5 x 3.4 x 3.4 cm
 Weight:   90.7g

COM-100

HM Digital
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HM Digital COM-100
  • Description
  • More Details
  • Specifications
  • Measures EC, TDS and temperature
  • digital calibration
  • robust waterproof housing
  • large easy to read screen
  • data hold and battery indicator

 EC Range:  0 - 9990 uS  
 TDS Range:  0 - 8560 ppm (mg/L) 
 Temperature Range:  0 - 80 °C
 Resolution:  EC: 0.1uS   TDS: 01ppm   Temperature resolution is 0.1 °C 
 Accuracy:   +/- 2 %
 Calibration:   Digital by push button
 Probe:   Detachable, with platinum electrodes 
 Housing:   Waterproof (submersible)
 Power source:   3 x 1.5V button cell batteries (included) 
 Dimensions:   18.5 x 3.4 x 3.4 cm
 Weight:   90.7g

EC-3

HM Digital
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HM Digital EC-3
  • Description
  • More Details
  • Specifications
  • Measures EC
  • easy to read display
  • includes carry case with belt clip
  • highly efficient and accurate
  • hold function with auto off
  • built in digital thermometer

 EC Range:  0 - 9990 uS  
 Temperature Range:  0 - 80 °C
 Accuracy:   +/- 2 %
 Calibration:   Factory Calibrated
 Power source:   2 x 1.5V button cell batteries (included) 
 Dimensions:   15.5 x 3.1 x 2.3 cm
 Weight:   76.5g

EC-3M

HM Digital
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HM Digital EC-3M
  • Description
  • More Details
  • Specifications
  • Measures EC
  • easy to read display
  • includes carry case with belt clip
  • highly efficient and accurate
  • hold function with auto off
  • built in digital thermometer

 EC Range:  0 - 9.99 mS  
 Temperature Range:  0 - 80 °C
 Accuracy:   +/- 2 %
 Calibration:   Factory Calibrated
 Power source:   2 x 1.5V button cell batteries (included) 
 Dimensions:   15.5 x 3.1 x 2.3 cm
 Weight:   76.5g

TDS-3

HM Digital
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HM Digital TDS-3
  • Description
  • More Details
  • Specifications
  • Measures ppm (or TDS)
  • easy to read display
  • includes carry case with belt clip
  • highly efficient and accurate
  • hold function with auto off
  • built in digital thermometer

 TDS Range:  0 - 9990ppm  
 Temperature Range:  0 - 80 °C
 Accuracy:   +/- 2 %
 Calibration:   Factory Calibrated
 Power source:   2 x 1.5V button cell batteries (included) 
 Dimensions:   15.5 x 3.1 x 2.3 cm
 Weight:   76.5g

Meter Batteries

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Meter Batteries
  • Description
  • 1.4 volt
  • Zinc-Air Battery
  • 6 batteries per pack. Suits all HM Digital pens above (except AP-2)