Solar Water Tank Level Monitor with Indoor Display

Product description

Ever wondered how much water is actually left in your tank?

Instead of climbing up, opening the tank or waiting until the water suddenly runs out, check the level from your phone.

This smart wireless tank monitor lets you see your water level and receive high or low level alerts remotely.

The ultrasonic sensor mounts at the top of your tank and measures the distance to the water without needing to sit inside it.

The reading is sent wirelessly to the indoor display, which connects to Wi-Fi so you can monitor your tank through the Tuya or Smart Life app.

The outdoor sensor is solar powered, helping you monitor tanks located away from your home without having to run a power cable to the sensor.

Key features & benefits

• Check your tank from your phone: See the current water level through the Tuya or Smart Life app without going outside to inspect the tank.
• Know before your water gets too low: Set high and low water level alarms so you can be notified when the tank reaches important levels.
• See the level at a glance: The indoor display shows the approximate water level percentage without requiring you to open the app.
• No sensor submerged in your water: Ultrasonic technology measures the water level from the top of the tank without the sensor touching the water.
• Made for larger tanks: Measures liquid levels from approximately 0.1m to 4m, making it suitable for many residential water storage tanks.
• Long-range wireless connection: The tank sensor communicates with the indoor gateway using 433MHz RF, with a stated maximum transmission distance of up to 500m in ideal open conditions.
• Solar-powered tank sensor: The external sensor uses a 3.6V solar power system, reducing the need to run electrical wiring.
• Monitor temperature too: View the environmental temperature around the tank along with the water level.
• Track more than one tank: The app interface supports multiple liquid level monitors, allowing compatible monitors to be managed from one app.
• Works with common smartphones: Compatible with Android and iOs.

How it works

The ultrasonic sensor installs at the top of your tank and measures the distance between the sensor and the water surface.

It then sends the reading wirelessly to the indoor display.

The indoor display connects to your Wi-Fi network, allowing you to check the tank through the Tuya Smart or Smart Life app.

Tank → Wireless Sensor → Indoor Display/Wi-Fi → Your Phone

Water level alerts

Instead of discovering that your tank is low when the water stops flowing, you can monitor its status ahead of time.

The system supports:

• Normal water level status
• High water level alarm
• Low water level alarm
• Water level percentage
• Temperature display

Important – Check Your Tank Before Ordering

Because this model uses ultrasonic measurement, the sensor needs a clear path from the top of the tank to the water.

For accurate readings:

• Install the sensor facing straight down toward the water
• Keep it away from the water inlet
• Avoid pipes or other objects directly beneath the sensor
• Avoid installing it too close to the tank wall
• Keep floats outside the sensor's measuring area

The manufacturer recommends approximately:

• 2m tank height: More than 1.1m tank width/diameter
• 3m tank height: More than 1.6m tank width/diameter
• 4m tank height: More than 2m tank width/diameter

This ultrasonic model is not recommended for underground tanks, tanks with heavy condensation around the sensor, or tanks where floats, pipes or other obstacles interfere with the sensor's measuring area.

Specifications

• Model: ME201RSP / ME201 Series
• Measurement: Ultrasonic
• Measuring Range: Approx. 0.1m–4.0m
• Accuracy: ±0.02m
• Sensor Power: Solar 3.6V
• Wireless Communication: RF 433MHz
• Maximum Stated RF Range: Up to 500m in ideal open conditions
• App: Tuya Smart / Smart Life
• Phone Compatibility: Android / iOS
• Water Level Display: Percentage
• Water Level Alerts: High / Low
• Temperature Display: Yes
• Operating Temperature: -20°C to 70°C

Note: Actual wireless range can be reduced by walls, buildings, metal structures and other interference.

Package

• 1 x Ultrasonic Water Level Sensor
• 1 x Indoor Display / Wi-Fi Gateway
• 1 x Solar Panel
• 1 x USB Cable
• Mounting Accessories
• 1 x User Manual