Portable pH Meter Pen Type

Portable pH Meter Pen Type Portable pH Meter Pen Type Digital PH Tester Meter Pocket Pen Aquarium Pool Water Digital TesterThis digital pen style pH meter is an ideal instrument for aquarium, fishing industry, swimming pool,school laboratory, food & beverage etc. Very excellent, accurate and durable.Note:The new digital tester shouldn't need to be adjusted. When you turn on the tester , you may find themeasured value is not accurate and unstable, it's normal phenomenon. Put the digital tester in theliquid that you want to test about 1 minute and you can read the PH. If you find it not accurate, usethe Calibration Adjustment Screwdriver (including) to adjust the adjustment trimmer.Features:Measuring pH Range: 0.0 - 14.0 pHResolution: 0.1 pHAccuracy: ±0.1 pH (20°C), ±0.2 pHOperating Temperature: 0 - 50°C (32 - 122°F)Calibration: Manual,1 point  (not including calibration buffer solution)Item Net Weight: Approx. 57g (after installed batteries)Dimensions: 152 x 29 x 20mm (5.984 x 1.142 x 0.591 inch)Package Included:1 x Digital pH meter3 x Batteries Included in pH Meter1 x User instruction (English)