Turn on the meter by "ON-OFF" switch, immerse the pH meter electrode in the solution to be tested, then stir gently and wait for the reading to stabilize....With this tester, a few simple steps can get the figure you want. Compact, portable pen type, and its simplicity of operation make it a must buy for you.

Features:
* Compact, portable pen type pH meter for testing
* With measuring range from 0.0 to 14.0pH
* High accuracy
* Approx. 700 hours of use
* One-Button operation

Specifications:
* Color: Yellow, black(as shown in the pictures)
* Measuring range: 0.0 to 14.0pH
* Resolution: 0.1 pH
* Accuracy: ± 0.1 pH(at 20℃/68°F)
* Typical EMC DEV: ±0.2pH
* Temperature compensation: 0℃ to 50℃
* Battery: 4*1.5v (AG-13 button battery)
* Operating temperature: 0℃ to 50℃(32°F-122°F)
* Relative humidity: ＜95%
* Life: Approx. 700 hours of use
* Trimming: By potentionmeter
* Dimensions: 150*29*20mm
* Net weight: 52g

Package dimensions: 178*65*23mm
Package weight: 117g