Tuya Smart WIFI Online PH ORP ControllerDownload "Tuya" APP, WiFi Connection/Intelligent real-time data transmission, you can view the current data, historical data, abnormal high and low data alarms on the mobile phone, etc. Unlike other WIFI water controllers this PH ORP TEMP Meter can export data to Excel/email for viewing and sharing, and even better news is that one phone can control multiple devices ! Connect to your phone in seconds and you can get PH and ORP readings. It makes testing more accurate and convenient. Note: Please read the user manual for specific operations, if there is any abnormality, please contact customer service. Easy OperationTest Ph/ORP/Temperature simultaneously, immerse the tester's electrode in water and wait a few seconds to get the data. No need to match colours one by one like test strips. Easier and more convenient to operate, complete with plug for easy control system setup. Support mobile phone APP one-touch backlight control, easy to read even in dim light. Operating system requirements. Compatible with iOS and Android systems. APP Real-Time MonitoringRecord Data for a Long Time, easy to compare and analyze and formulate solutions, compatible with iOS and Android systems. Set the high and low alarm value, if the set value is exceeded, it will alarm. High-Precision Replaceable Electrode, Wide Application RangeSuitable for Swimming Pools And spa, koi fish pond, also suitable for aquarium, sea water, marine/salt water fish tank PH & ORP test. Product Use SafetyFuse Protection, When the current is abnormal, it reaches a certain height, it will cut off the whole circuit and play a protective role