Note that the sensor and power supply are 5V DC.
Take care when using another power supply (which may be 12v).
Highlights at a glance:
- Self-Powered for Off-Grid Tanks: Built-in solar panel and battery enable continuous monitoring of water tanks and rainwater systems without external power.
- IP67 rated for all weather conditions.
- Triple Power Supply: Integrated with Solar Panel + Rechargeable Battery + Power Adapter
- Switchable low-power mode: Detects liquid level every 10 minutes and automatically uploads data when the liquid level changes by more than 5cm.
- Long-Life & Low Maintenance: Solar charging and efficient power management extend operation, minimizing site visits. Ideal for remote or hazardous locations.
- 3M Tank Level Detection: Accurately measures water, oils, and industrial liquids in tanks, silos, and basins from 10cm to 3m. Used in agriculture, utilities, and manufacturing.
Product Description:
This Smart WiFi Ultrasonic Liquid Level Sensor is a solar-powered WiFi gauge designed specifically for outdoor and power-free environments.
It utilises a high-efficiency solar panel paired with a large-capacity lithium battery pack, achieving ultra-long battery life and maintenance-free operation, completely solving the problem of wiring and power supply.
The device can accurately measure liquid levels from 0.1 to 3 meters and connects directly to the Tuya Cloud platform via WiFi, allowing you to remotely monitor data and receive high and low liquid level alarms anytime via a mobile app.
It is a reliable solution for unmanned intelligent management in scenarios such as water towers, farmland, and manholes.
- Remote monitoring of tank levels from your smartphone – anytime, anywhere
- Alerts of high and low levels via the app.
- Measuring distance: 10 cm to 3.0 m
- IP rating: IP67 waterproof
- Certification: CE, ROHS
- Operating temperature range-10 degC to +70 degC – suitable for most weather conditions.
- AC Power adapter included: Input: 100-240V AC and Output: 5V DC.
- Easy to install: Hole to be drilled in the top of the tank to secure sensor with lock nut.
- Sensor cord length: 3m
- Power supply cord length: 1.5m
Installation
Settings
Pairing and setup
-
It is recommended to pair and set the minimum and maximum level settings prior to installing the sensor on top of the tank.
- Download and install the app (Smart Life or Tuya). Register an account and log in.
- In the App, click on the “+” / Add Device.
- On the Sensor, press and hold the pairing button for approximately 5 seconds, or at least until the LED flashing confirms that Pairing Mode has been activated.
- Watch the App screen for further details. Once the Device has been added and visible in the App, click on the Tank Sensor’s “tile” to enter the device’s main screen. Scroll down and select “Settings” at the bottom of the page.
- Under Settings, set the following:
- Installation Height = Overall height of the tank, i.e. distance between installed sensor and lowest water level (e.g. 2.0m)
- Sensor to full line =Â Â Distance from sensor to water level, when 100% full (e.g. 10.0cm)
- Set Mini = minimum level for notifications, automations, etc, (e.g. 25%)
- Set Max =Â maximum level for notifications, automations, etc, (e.g. 95%)
- NOTE that after a period of inactivity, the sensor may exit programming mode to conserve energy and battery life. In this case the user will need reenter programming mode by single/quick press of the pairing button. This may also need to be done when the settings need to be adjusted in future.
Notifications and automations
Notifications and automations can be defined in the Scenes menu in the App, e.g. send notification to phone when water level drops to below 20%.
Notes:
- 2.4GHz WIFI required
- Power requirement is 5VDC (not 12VDC)
