Features: 1[Multi Function] Our smart monitor could test PH CL EC TDS ORP and temperature, adopts high sensitive glass probe, the detection is accurate and reliable. 2[Bluetooth Connection] Accurate real time data transmission allows you to easily save, manage and share test data without worrying about data loss. 3[Large Screen] Large LCD screen can display multiple parameters at the same time, and mobile phone APP can control backlit display. 4[Parameter Setting] Parameters can be customized through APP, you can set the upper and lower limit values, when the set value exceeds the test range, APP interface will display a red value to prompt. 5[Wide Use] With a wide range of measurement, the smart tester is applicable to swimming pools, domestic drinking water, hydroponics, laboratories, aquariums. Package included: 1 x Bluetooth Pool Monitor 1 x Handle 1 x Use Manual 5 x PH Reagent