Quick Answer: Checker Plus pH Tester is a compact pH meter with a large LCD, a thin long-reach tube that fits into a test tube and two-point calibration with automatic buffer recognition, reading pH 0.00-14.00 at 0.01 pH resolution.
Last updated: October 2026
Key Features
Range pH 0.00-14.00, resolution 0.01 pH, accuracy ±0.2 pH
Two-point calibration with automatic buffer recognition
Thin long-reach tube fits easily into a test tube
Readings shown clearly on a large LCD
Battery life: 1000 hours
Weight 50 g; 71 x 50 x 21 mm excluding probe
Technical Specifications
Specification
Value
Range
pH 0.00-14.00
Accuracy
±0.2 pH
Resolution
0.01 pH
Calibration
two-point, automatic buffer recognition
Battery life
1000 hours
Weight
50 g
Dimensions
71 x 50 x 21 mm (excluding probe)
About This Product
Its thin long-reach tube lets students take a reading directly inside a test tube, and the result appears clearly on a large LCD. This sturdy pH Meter tester calibrates at two points and recognises the buffers automatically, which keeps set-up quick.
Frequently Asked Questions
Q1. Can the Checker Plus pH Tester measure inside a test tube? Yes. Its thin long-reach tube fits easily into a test tube.
Q2. How accurate is it? Accuracy is ±0.2 pH, with a resolution of 0.01 pH across pH 0.00-14.00.
Q3. How long does the battery last? Battery life is stated as 1000 hours.
