Liquid Level Sensor 3

Liquid Level Sensor 3 is an IPx7 waterproof BLE beacon with liquid level sensor. The BLE is a very low power 2.4G radio that can transmit the beacon information efficiently with Bluetooth® Low Energy( BLE) supports in Bluetooth 5. The typical beacon battery life is over 3 years in default settings. It has a rugged design for working in tough conditions. The liquid level sensor is 1M long and It is suitable for sensing liquid level without metal containers and thickness less than 12mm.


Liquid level detection

Liquid height detection (above or below a certain level)



● ARM Cortex TM – M3 32-bit processor
● Support BLE 4.2 and BLE 5 long range
● IPx7 waterproof
● 2M of drop protection
● Powered with 1XCR2450 battery
● Long battery life: over 3 year in typical beacon setting(30s)
● Android APP for configuration
● Power on/off switch(internal)
● Main unit Size: 43mmx43mmx14.8mm
● Probe size: Cable length 1M; Sensor head: 37mmX33mmX6.5mm
● Operating temperature: -20°C to 75°C


● liquid level sensor


● 2.4GHz frequency band
● Maximum transmit power +5dB
● Receiver sensitivity: -97 dBm @1Mbps, 0.1% BER
● On board PCB antenna
● >100M range in open space


● Bluetooth

Block Diagram