Pen Portable pH Meter


It is designed like a pen and more convenient to use anywhere and anytime!


  • Best function:automatic calibration, automatic temperature compensation, automatic power off, low voltage alarm, pH electrode invalidation display, etc.
  • Easy to use :single button operation.
  • Reliable structure design:meet IP57 waterproof, replaceable batteries, calibration solution, electrode soaking solution and standby batteries in a portable case.

Main Technical Parameters:

Ordering Information →
Parameter ↓
BGD 287 BGD 288
Measuring range 0~14.0 pH -1.00~15.00 pH
Resolution 0.1 pH 0.01 pH
Accuracy ± 0.1 pH ± 0.01 pH
Stability ±0.1 pH/3h ±0.01 pH/3h
Temp. compensation range 0~60℃ (automatic) (0 ~ 60)℃ (automatic)
Show Temperature No Yes
Auto. Calibration 1 Point(pH7.00) 1 ~ 3 point(pH4.00/7.00/10.01)
Power CR2032 lithium batteries×2,continuous use for over 100 hours
Dimension 148×29×14mm
Weight 43g

Optional Accessories:

BGD 1171/4 Plastic three-in-one combination pH electrode (for BGD 287)
BGD 1171/5 Plastic three-in-one combination pH electrode (for BGD 288)
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