Wireless ultrasonic liquid level and temperature sensor | 0-15m | -40...+60°C | 433MHz

Technical Specifications

Measurement type: Ultrasonic
Maximum measurement depth: 0–15 m
Resolution: 0.01 m
Accuracy: ±0.03 m
Transmission range: up to 100 m (in open space)
Communication frequency: 433 MHz

Temperature measurement:

Indoor temperature: 0…+50 °C
Resolution: 1 °C
Accuracy: ±1 °C

Tank temperature: -40…+60 °C
Accuracy: ±1 °C

Display and Functions

LCD display with 10-segment level indication
Clock: 12 / 24-hour format
Min/Max temperature recording
Water level display in meters or feet

Power Supply

Receiver: 2×AA 1.5V (up to ~12 months)
Transmitter: 6×AAA 1.5V (up to ~24 months)

Dimensions

Receiver: 106 × 97 × 24 mm
Sensor: Ø ~47 mm

Other

Update interval: every 30 s or 3 min
Alarm duration: 120 s
Mounting: wall-mounted or freestanding

Functions

Wireless data transmission up to 100 m
Real-time liquid level monitoring
Indoor and tank temperature measurement
High and low level alarm
Empty tank warning
Min/Max temperature memory
Low battery indicator
Clear LED/LCD display with graphical indicator

Applications

For home users:
Monitoring rainwater tanks
Control of wells and cisterns
Tracking fuel or water tanks at home
Convenient monitoring from indoors (up to 100 m)

For engineers:
Liquid level monitoring in systems
Integration into maintenance solutions
Temperature and level analysis

For electricians/installers:
Easy installation without cables
Quick commissioning on site
Reliable solution for clients

For farms / industry:
Fertilizer, water, and fuel tanks
Storage reservoirs
Remote monitoring

Advantages

Wireless – no cables required
Long operating range (up to 100 m)
Accurate measurement up to 15 m depth
Temperature monitoring (indoor + tank)
Easy installation and use
Long battery life
Clear display with graphical visualization

Disadvantages

Batteries required (not included)
Operating range may decrease due to obstacles
Requires proper horizontal installation (use a level)
Minimum distance from sensor to water surface – 0.5 m

Frequently Asked Questions (FAQ)

1. What is the maximum measurement depth?
The device can accurately measure liquid level up to 15 meters.

2. What is the operating range between transmitter and receiver?
Up to 100 meters in open space (without obstacles).

3. Can temperature be displayed?
Yes, both indoor and tank temperatures are displayed.

4. Is there an alarm for critical levels?
Yes, the device includes high level, low level, and empty tank alerts.