One water quality tester pen with 7 functions: TDS, PH, ORP, EC, TEMP, SALINITY, S.G. LCD backlight display, battery-powered, plastic material, battery not included.

This multifunctional water quality tester pen features a LCD backlight analysis instrument with 7 functions in 1. It is battery powered and is capable of testing TDS, pH, ORP, EC, temperature, salinity, and specific gravity. Made of plastic, batteries are not included.

Characteristics of the product: 1. Easy to carry due to its light weight. 2. Ensures precise water measurement, promoting the health of the entire family's drinking water. 3. Versatile switch for various functions. 4. LCD screen with backlight for effortless reading.The electrode head is integrated and highly sensitive, utilizing a high-sensitivity glass electrode.This pen can measure various parameters including pH, ORP, EC, temperature, salt, specific gravity, and TDS. Please note that the battery (3*1.5V button cell) is not included.The product specifications cover a wide range of measurements: 1. pH levels from 0 to 14, 2. TDS levels from 0 to 200,000 ppm, 3. EC levels from 0 to 200,000 μS/cm, 4. Salinity from 0 to 20%, 5. ORP with a negative potential range of ±1999 mV, 6. H2 Hydrogen-rich levels from 0 to 2400 PPb, 7. S.G seawater specific gravity from 1.000 to 1.222, and 8. Temperature from 0 to 60°C.Inventory includes a water quality pen with 7 functions (battery not included) and 4 packets of calibration powder.