Meter · HM Digital
COM-100 EC/TDS/Temperature Meter
A professional handheld meter with EC, two TDS scales and temperature.
$74.95
Recorded 2026-10-08 · excludes shipping and tax. Confirm current price and availability with the retailer.
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Specifications
- Measurements
- EC, TDS and temperature
- Scales
- µS, mS, 0.5 PPM and 0.7 PPM
- Ingress Rating
- IP67
- Calibration
- Digital push-button
- Sensor
- Replaceable SP-C1
Specifications checked 2026-10-08.
Planning notes
Best use
Frequent nutrient-solution checks where EC is the primary concentration measure.
Before you buy
Choose one scale for the journal, calibrate consistently and budget for replacement calibration solution.
Strengths noted
- Four conductivity display scales make recorded readings easier to interpret.
- The IP67 housing and replaceable sensor support longer-term use.
Considerations
- It does not measure pH.
- Users must record which PPM scale they selected for meaningful comparisons.