4-in-1 Chlorine Test Pen, Water Content Measurement, Pool Instrument, ORP H2 Temperature Tester

Features: 1. Clear LCD display, large screen, clear digital values, easy to read. 2. Uses three button cell batteries and battery replacement is convenient. 3. High-sensitivity electrode probe, high accuracy in water quality measurement, automatic temperature compensation, reducing errors. 4. There are four different modes for the test pen; pressing the MODE/CAL button switches between them. 5. Mode memory function; the default mode for each startup is the last mode used before shutdown. Specifications: Suitable for water quality testing, such as drinking water testing, hydroponics, laboratories, aquaculture, wastewater treatment, etc. The MODE/CAL button switches between different modes. Mode memory function; the default mode for each startup is the last mode used before shutdown. Specifications: Color: Green + White Material: Plastic ORP Measurement Range: 0-1999 mV H2 Measurement Range: 0-10000 ppb Chlorine Measurement Range: 0-4.00 ppm Temperature Measurement Range: 0-60 ℃ / 32-140 ℉ Battery: 3 x LR44 button cell batteries, 1.5V, 160mAh Item Size: 186 * 37 * 23 mm / 7.3 * 1.5 * 0.9 inches Package Size: 280 * 80 * 45 mm / 11.0 * 3.1 * 1.8 inches Package Weight: 160 g / 5.6 oz Packing List: 1 * Water Test Pen water test