Smart WiFi ultrasonic water level sensor with real-time notifications to your phone

The smart water level sensor helps you remotely monitor the filling level of a water tank without any physical contact with the liquid. The ultrasonic water level sensor operates via a WiFi network and sends notifications directly to your smartphone when the water level reaches the set limits. The device is suitable for tanks in homes, gardens, or private water systems.

Ultrasonic water level sensor - key features

• Remote sensing — You can check the water level at any time via the Tuya or Smart Life app from anywhere.
• Real-time alerts — The sensor sends a notification to your phone and emits an 80 dB audible signal when the level is critical.
• Accurate measurement — Ultrasonic technology ensures an accuracy of ±0.02 meters when measuring from 0.1 meters to 4 meters.
• Weather resistant — IP65 protection class allows use in outdoor conditions and humid environments.
• Simple installation — The sensor is mounted above the tank, without contact with water, so there is no need to disassemble the system.
• Wide temperature range — Operates from -20°C to 50°C, suitable for both cold and hot climates.

Technical specifications

• Adapter: AC 110V~250V
• Sensor power consumption: ≤100mA @ 5V DC
• Network mode: 2.4G WiFi (IEEE 802.11 b/n/g)
• Measurement range: 0.1m–4m
• Accuracy: ±0.02m
• Operating temperature: -20°C~50°C
• Protection class: IP65
• Measurement type: water level
• Brand: Msmart
• Model number: MS-ME201W
• Display type: analog only
• Power supply voltage: DC 5V
• Weight: 0,25 kg
• Power source: DC 5V
• Purpose: water tank
• App: Tuya/Smart Life
• Material: plastic
• WiFi standard: IEEE 802.11 b/n/g 2.4GHz
• Sound signal: 80dB
• Notification method: message to the app
• Package type: single unit
• Package size: 12x12x63 cm
• Total weight with packaging: 0.330 kg

Who is it suitable for and how to use it?

This ultrasonic water level sensor is perfect for homeowners, gardeners, and farmers who want to monitor the filling of water tanks, reservoirs, or wells without constant physical checks. When installed above the tank, the sensor automatically measures the distance to the water surface and transmits the data via WiFi. It is recommended to use it where it is important to detect a lack or excess of water in a timely manner.

Buyer questions

Q: How does the ultrasonic water level sensor work?
The sensor emits ultrasonic waves that are reflected off the water surface, and the distance is calculated based on the reflection time. The data is transmitted via WiFi to the Tuya or Smart Life app in real time.

Q: Can the sensor be installed outdoors?
Yes, the device has an IP65 protection rating and operates in temperatures from -20°C to 50°C, making it suitable for outdoor use in humid or dusty environments.

Q: What distance can the sensor measure the water level?
The measurement range is from 0.1 m to 4 m, and the accuracy is ±0.02 m, making the device suitable for tanks and reservoirs of various sizes.

The smart ultrasonic water level sensor is a reliable solution for those who want to always know the exact amount of water in the tank. It is suitable for homes, gardens, and farms where convenience and safety are important.

Sources: Ultrasonic sensors | TopSmart store