Item Type: Water Testing Pen <br>Product Size: Approx. 15.3 x 2.8 x 1.5cm / 6 x 1.1 x 0.6in <br>Weight: Approx. 54g / 1.9oz <br>Battery Parameters: 2 x LR44 Button Batteries 160mAh (Shipped with Built in Battery) <br>Centigrade: 0.1-80℃ <br>Applicable Industries: Hospital, Natatorium, Cdc, Water Plant, Laboratory, Aquaculture<br>1、[Liquid Display] Large size backlit LCD screen is adopted, which has greater data reading angle and night reading ability <br>2、[Safe and Reliable] Reliable water quality detector, accurate and fast, equipped with sensitive and high quality probes, the water quality detector can test quickly and conveniently <br>3、[Accurate Display] Put the probe into the water and the LCD will display the accurate results in a few seconds <br>4、[Automatic Temperature Compensation] Equipped with automatic temperature compensation, it can be adjusted according to water temperature and water quality to provide almost immediate PH reading <br>5、[Scope of Application] An ideal water tester for water, swimming pool, aquarium, spa, hydroponics, food, wine and beerPlease allow 0 to 2 cm error due to manual measurement. Thanks for your understanding.1 x&nbsp;Water Testing Pen(Shipped with Built in Battery)