HM Digital

HM Digital is a leading supplier of water testing equipment around the world. We have included seven test meters in our range - the pH-80, COM-80, COM-100, EC-3, EC-3M, AP-2 and TDS-3. These hand held meters should suit most requirements hydroponics, aquaponics and aquarium applications.

HM Digital
ph-80

PH Meter

PH-80

  • 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
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Com-80

EC / TDS Meter
COM-80
  • Measures EC, TDS and temperature
  • digital calibration
  • data hold and battery indicator
  • large easy to read screen
  • splash proof / water resistant
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Com-100

EC / TDS Waterproof Meter
COM-100
  • Measures EC, TDS and temperature
  • digital calibration
  • robust waterproof housing
  • large easy to read screen
  • data hold and battery indicator
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AP-2

AquaPro EC Meter
AP-2
  • Measures EC and temperature.
  • Automatic Temperature Compensation (ATC)
  • Water-resistant housing
  • Measurement Range: 0-9999 micro-siemens ( ยตS )
  • Digital Calibration (push button)
  • Auto-off function, data-hold function and low-battery indicator.
  • Large and easy-to-read LCD screen includes simultaneous temperature reading.
  • Includes a cap and batteries.
  • Includes a storage case
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EC-3

EC Meter

EC-3
  • 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
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EC-3M

EC Meter

EC-3M
  • 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
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TDS-3

TDS Meter

TDS-3
  • 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
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Meter Batteries

Meter Batteries

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