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Contact SupplierPh meter digital pocket sized pen style handheld with auto calibration water tester meter
1.accuracy: ± 0.1ph
2.an ideal instrument for aquarium, fishing industry, swimming pool, school laboratory, food & beverage etc.
3.auto-off function
4.long battery life and lightweight design
5.economical testers are easy-to-use and low cost instruments to measure quick and reliable ph values. Pen type meter that can simultaneously measure display ph and temperature
6.quick to test the acidity and alkalinity of liquids
7.just put it into the liquids you wanna test, the results will shown on the lcd screen
8.package content: 1 x ph meter; 1 x screwdriver; 2 x ph buffer powder (250ml ph 4.00250ml ph 6.86),weight=70g