TDS Water Quality Testing Pen Household High-precision Testing Instrument Drinking Water Analyzer Testing Pen

Resolution: 1 Power supply voltage: 1.5V Measurement accuracy: ± 2% F.S Measurement range: 0-9999PPM Type: Portable water quality analyzer Size:15cm*1.6cm*1.6cm Temperature range: 0-80 ℃ Battery specification: 1.5V * 2 (AG13 button battery) Package includes:1 x Water quality testing pen