HM Digital Pocket-Size TDS Meter

HM Digital Pocket-Size TDS Meter

Ask a Question
List Price: $2916
Now: $2347

Ships within 24 hours | In Stock

HM Digital Handheld TDS Tester

The TDS-4 is an ideal pocket meter that can be used for any and all applications, ranging from water purification, to hydroponics, to aquariums, to industrial waste water treatment.


  • Pocket size makes it ideal for portability and storage.
  • Hold Function
  • Auto-off Function (After 10 min.)
  • Factory calibrated with 342 ppm NaCl solution.



  • Aquaculture
  • Aquarium
  • Drinking Water
  • Food & Beverage
  • Water Treatment


HM Digital Pocket-Size TDS Meter

Range: 0 – 9990 ppm (mg/L)

Resolution: 0-999: 1 ppm; 1000-9990 10 ppm (indicated by a ‘x10’ icon)

Accuracy: +/- 2%

EC-to-TDS Conversion Factor: NaCl (avg. 0.5)

ATC: Built-in sensor for Automatic Temperature Compensation 

Power source: 2 x 1.5V button cell batteries (included)

Battery life: 1000 hours of usage

Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches)

Weight: 34g (1.2 oz)

Questions & Answers

Have a Question?

Be the first to ask a question about this.