Checker Plus Complete Set With Hi1271

Modern Substitute for Litmus Paper with Replaceable Electrode

The Checker Plus electronic pH tester supplies you with fast and accurate readings on a large LCD. The electrode can be replaced, allowing the tester to last for years. Checker Plus is great for environmental, field and laboratory testing. Also suitable for checking electrodes in pipes and tanks and various laboratory applications. The Checker Plus pH tester includes a replaceable electrode with a screw-type connector, 2 sachets of 4.01 buffer solution, 2 sachets of 7.01 buffer solution, 2 sachets of cleaning solution and a plastic carrying case.


  • Large and easy-to-read LCD.
  • High accuracy with 0.01 pH resolution.
  • Automatic, one or two points calibration.
  • Battery life: 1,000 hours of continuous use.
  • Wide range: 0.00 to 14.00 pH.
  • Replaceable pH electrode.

Specifications for Checker Plus pH Tester

Range 0.00 to 14.00 pH
Resolution 0.01 pH
Accuracy ± 0.2 pH (@20C/68F)
Typical EMC Deviation: ± 0.1 pH
Calibration Automatic, one or two points with three standard buffers available (pH 4.01, 7.01 and 10.01)
Battery Type / Life 1.5V CR2032 (1) / 1000 hours
Environment 0 to 50°C (32 to 122 F); RH max 95%
Dimensions 50 x 174 x 21 mm (2 x 6.8 x 0.9") (Tester only)
Weight 50 g (1.8 oz.) (Tester only)

arrow12pH Electrode for Checker Plus

Model # Junction Shape* Plug Pressure
Temp. Range C Body Cell
HI 1271 Open SA Screw 0.1/1.45 0/+50 Polypro Viscolene

* SA: Sphere, 3.0mm Diameter

with replaceable HI 1207 full-length gel-filled pH electrode and screw-type connector

SKU: 70699-02
Pack: Each