LONG MEASURING DISTANCE: 10cm to 4m (4 to 157 inches) from the sensor, suitable for various tanks. POWER ADAPTER: Input: 100-240V AC, Output: 5V DC. WIFI SIGNAL: The sensor connects to a router to receive a 2.4G WiFi signal. WiFi range is up to 30m in open space without obstacles. SAFETY AND HIGH RELIABILITY: IP65 waterproof rating. REMOTE TANK MONITORING: Check your tank level from your smartphone anytime, anywhere. No need to open the tank frequently. FULL AND LOW LEVEL ALERTS: Receive notification alerts when the tank is full or at low level. Custom alarm levels can be set via the app. MULTI TANK MONITORING: One app can monitor up to 10 sensors. Easily connect and manage multiple tanks. APPLICATION: Water or oil tank monitoring. USAGE: Home automation system. OPERATING TEMPERATURE: -20℃ to 70℃. COMPATIBLE SYSTEMS: Android and iOS. APP: Tuya Smart App. MEASURING RANGE: 0.1m to 4.0m. POWER SUPPLY: 100-240V AC to 5V DC. CONNECTIVITY: WiFi (2.4GHz). PLUG TYPE: EU Plug, suitable for use in Indonesia, Germany, France, Spain, Italy, and other compatible regions. COLOR: Orange. MATERIAL: Plastic. PACKAGE CONTENTS: 1 x Liquid Level Monitor. Other items not included. NOTE: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement error tolerance is +/- 1-3cm.