1、High Precise Probe: Adopt high precise probe, which is corrosion resistance, has quick response, stable data measurement, and long lasting durability. 2、WiFi Connection: The tester can connect to the mobile phone via WiFi, transmit data stably, you can view the current data, historical data on the phone, very convenient. 3、Real Time Transmission: Data can be transmitted in real time, daily, weekly and monthly data can be viewed, the water quality can be easily grasped. 4、APP Alarm Setting: The App can alarm when the data is abnormally high or low, easy to set via for Tuya, create a smart scene and set the security range, select the alarm method beyond the security range is ok. 5、Wide Application: The tester is suitable for water source, soilless culture, aquarium, hydroponics, laboratory, spa, environmental water, swimming pool, water purification system, etc. Item Type: Water Quality Meter Material: ABS Temperature Compensation: 0℃ to 50℃ Working Temperature: 0℃ to 50℃ Range: PH: 0.00-14.00pH EC: 0-19000us/cm, 0-199.0ms/cm TDS: O-19990ppm, 0-199.0ppt Salt: 0-199.9ppt, 0%-20% SG: 0.990-1.400 Temperature: 0°C to 50°C (32°F to 122°F) Resolution: PH: 0.01PH EC: 1us/cm(<1000us/cm), 10us/cm(>1000us/cm), 0.1ms/cm TDS: 1ppm (<1000ppm), 10ppm (>1000ppm), 0.1ppt Salt: 1ppm (<1000ppm), 10ppm (>1000ppm), 0.1ppt, 0.01% SG: 0.001 Temperature: 0.1°C (0.2°F) Accuracy: PH: ±0.03pH EC, TDS, SALT: ±2%F.S Temperature: ±1.0 1 x Water Quality Meter 2 x Probe 3 x Installation Accessories 1 x Adapter