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Tuya Zigbee Ultrasonic Liquid Level Sensor – Accurate Water Tank Monitoring
68,000 IQD
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Tuya Zigbee Ultrasonic Liquid Level Sensor – Accurate Water Tank Monitoring
Monitor the water/liquid level inside the tank directly from the Tuya Smart / Smart Life app with high/low level alerts, and a measurement range of up to 5 meters .
Important: This version works via Zigbee 3.0 and requires a Zigbee Gateway .
Important: This version works via Zigbee 3.0 and requires a Zigbee Gateway .
Zigbee 3.0 Range 0.1–5m Accuracy ±0.02m DC power 5V/1A Upper/lower level alerts
Instant View + App History displays ratio/depth and level status with a graph (day/month/year).
Suitable for tanks: household tanks, gardens, rooftop/ground tanks, liquid storage (subject to installation conditions).
Smart alerts : Full/low alert according to settings within the app.
What makes this sensor special?
- Ultrasonic measurement : Measures the distance to the liquid surface from the top of the tank and converts it to a level/depth value.
- High/Low Alerts : Monitor the status (Normal / Full Alarm / Low Alarm) according to the alert limits you define.
- Monitor from anywhere : via the Tuya Smart or Smart Life app (with an internet-connected Zigbee gateway).
- Setup button (Touch Key) : Press and hold for 5 seconds to enter setup/pairing mode.
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LED status light :
- Setting mode: LED flashes rapidly.
- Connected: LED steady (ON).
- Off: LED turns off slowly/slow flashing.
Important note before purchasing: A Zigbee gateway is required for this sensor to work with the app. (Gateway separate from sensor)
Suggested Uses (Use Cases)
- A rooftop/ground water tank to check the fill level without having to go up and inspect it.
- Gardens and irrigation: Warning when water is running low.
- Liquid storage tanks/stores (water or similar liquids) for level monitoring.
- Multiple homes or projects: Tracking multiple tanks from the same app.
Box contents (as shown in the pictures)
- Ultrasonic level sensor.
- Cable/connecting wires.
- DC 5V power adapter.
Technical specifications
| Product Name | Tuya Zigbee Liquid Level Monitor Sensor |
|---|---|
| Model | WL-872WZ |
| The app | Tuya Smart App / Smart Life App |
| Material | PC |
| Warranty (according to supplier specifications) | 1 year |
| Energy | DC 5V / 1A |
| Contact | Zigbee 3.0 (requires Zigbee Gateway) |
| Operating temperature | -20°C ~ +70°C |
| Level measurement range | 0.1m ~ 5m |
| Installation height | Maximum 5m |
| Accuracy | ±0.02m |
| Touch button | Hold for 5 seconds |
| LED indicator | 1) Setting: Quick flash 2) Connected: Constant lighting 3) Offline: Slow lighting/gradual turning off |
Important installation notes (to ensure a correct reading)
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Mount the sensor vertically on top of the tank so that the ultrasonic sensor is facing the water surface directly.
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Keep away from the edges/inner walls : Installing the sensor too close to the tank wall/barrier may cause a pseudo-echo and inaccurate readings.
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Do not place obstructions within the measurement area (such as a tube/float/wire) within the “reflective zone” in front of the sensor.
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The transmission angle is approximately ±15° ; therefore, the water surface must be within the transmission cone without obstructions.
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Approximate requirements for the diameter of the measuring area (D) based on the height of the tank (H) :
- H = 4m ⇒ D > 2m is preferred
- H = 3m ⇒ D > 1.6m is preferred
- H = 2m ⇒ D > 1.1m is preferred
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The opening : A mounting opening larger than 55 mm is required (as per the drawing).
Electrical warning: The device operates on DC 5V/1A . Use a good power adapter, keep the wires away from moisture, and ideally have installation performed by a technician if necessary.
How does it work within the application?
- Displays liquid percentage/depth and level status (Normal / Upper Alarm / Lower Alarm).
- You can set a maximum and minimum limit for sending alerts.
- The level change chart is displayed for review and follow-up.
- It is possible to add more than one sensor within the same account.