HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Need more than 1? Get a bulk buy discount up to 20% off FEATURE: 1. Lightweight and . 2. Accurately measure the amount of water to protect the drinking water health of the whole family. 3. Multi-function random switch 4. Dust-proof and splash-proof design: IP67 waterproof level 5. LCD backlit screen clear and easy to read 6. Built-in high-sensitivity electrode head using high-sensitivity glass electrode anti-rust platinum electrode SPECIFICATION: Measuring range: PH/ORP/EC/TEMP/SALT/S.G/TDS Battery: 3*1.5V button battery (built-in) Material: plastic Size: Approx 185*37*24mm/7.29*1.46*0.95inch. Weight: 0.15kg MEASURING RANGE: 1. EC: Rangei¼s0-10000us / cmi¼Œ10.01- 19.99mS / cmi¼Œ20.1400.0mS / cmi¼ˆAutomatic conversion rangei¼‰ Resolutioni¼s1uS / cmi¼›0.1ms/cm; Accuracyi¼sA±2i¼…FS 2. TDSi¼s Rangei¼s0-10000ppmi¼Œ10.1-20.0ppti¼ˆAutomatically convert rangei¼‰ Resolutioni¼s1ppmi¼›0.1 Accuracyi¼sA±2i¼…FS 3.Salinityi¼s Rangei¼s0.01i¼…-25.00i¼… Resolutioni¼s0.01i¼… Accuracyi¼s0.01-5.00i¼…i¼ˆA±0.1i¼…i¼‰; 5.1-25.0i¼…i¼ˆA±1i¼…i¼‰ 4.PH Value Rangei¼s0.01-14.00N€H Resolutioni¼s0.01pH Accuracyi¼sA±0.05 pH 5. ORPi¼s Range: A±999mV Resolutioni¼s1mv Accuracyi¼sA±2mv 6. SGi¼s1.000 -1.222 Working environmenti¼s0-60.0Celsiusi¼ˆ32.0-140Fahrenheiti¼‰; Relative humidity 100% 7. Temperature Rangei¼s0.1-60.0Celsius 32.0-140Fahrenheit Accuracyi¼sA±0.5Celsius Resolutioni¼s0.1Celsius /Fahrenheit PACKAGE INCLUDED: 1X 7 in 1 water quality pen NOTE:PO BOX address is not supported please provide the correct physic