3. Automatic control: the instrument of the product in case it does not work, disconnect the bluetooth, it will automatically turn off in 8 minutes, when you need the instrument, open the Bluetooth and connect automatically, better humanized. 1. Bluetooth function: The water quality tester with Tuya App compatible with IOS, Android mobile phones, mobile phones and equipment can be within a distance of 10 meters for real-time data transmission. 2. 6 in 1 Design The water quality detection pen can realize the detection of PH.EC.TDS.SALT.SGTEMP 6 in 1 function. Suitable for domestic water, aquarium, aquaculture, catering, food industry, fishing, swimming pool. 4. Multi-Language Compatibility - Support water quality sensing pen language, traditional, English, French, German, Russian, Japanese, Korean and Spanish. 5. Multiple Formats: PH supports 6.86, 4.01, 9.18, 7.00, 4.00, 10.00 and 2 kinds of calibration. It supports mailbox data export function for hourly, daily, weekly, and monthly data, and sends it by email., Weight: 0.41446905256 Pounds, Manufacturer: Faeymth