Ezilab's Tabletop pH Meter EZL-TPM312 serves chemical and environmental laboratories that need routine pH measurement with the same extended range concept as the bench top pH meter in this catalog, at a slightly narrower -2 to 18 pH span with 0.01 resolution. This routine digital pH meter still covers strongly acidic and highly alkaline samples beyond the standard 0-14 scale, though the marginally reduced upper ceiling compared to the -2 to 19.99 unit reflects a more standard, everyday-use positioning rather than the most extreme edge cases that wider-range instrument targets. That distinction matters for labs choosing between the two extended-range meters in this catalog — routine chemical and environmental testing rarely pushes pH readings all the way to 19.99, so this slightly narrower range covers the vast majority of practical extended-range testing needs without sacrificing meaningful capability, while the other unit's extra headroom serves genuinely extreme specialty applications. The 0.01 resolution matches the precision of the wider-range model, so labs aren't trading measurement accuracy for the marginally reduced span. Chemical and environmental labs running routine extended-range pH testing that doesn't require the absolute widest available ceiling get practical coverage here. EziLab's Routine Digital pH Meter and Tabletop pH Meter cover routine extended-range pH testing needs across USA chemical and environmental laboratory settings.



pH {
mV {
Temperature {
Working Conditions {
Calibration 3 point, Automatic
Buffers According to standards.
Power 12V/1A
Dimensions (W×D×H) 240×170×70 mm
Weight 600 g
  • 6.5-inch LCD screen display all parameters

  • Long lasting Omron

  • Light touch panel

  • Auto-calibration

  • Fully automatic temperature compensation in either °F or °C

  • Data storage is up to 500 sets of test data and is transferable

  • Auto-recognition for the standard buffer sets available

  • Smart judge of electrode status

  • Wireless Bluetooth block

  • USB (A), USB (B) interface

  • Water and dust proof IP54 Grade 

  • 12V/1A Power supply

  • These pH meters are widely used in scientific testing, quality control, biotechnology, fine chemicals, and acid-base titration analysis. In addition, they are ideal for determining moderate to low ionic strength solutions, low turbidity liquid solutions, and water quality analysis.

  • pH Meter LO-TPHM200 Series 1 unit

  • Composite electrode (subject to different models) 1 pc

  • Rotary electrode holder 1 pc

  • pH calibration buffer 1 set

  • 12V power adapter 1 pc

  • USB with user manual 1 pc

  •