Lefoo Wireless Submersible Liquid Level Transmitter LFT3600

Name: Wireless Submersible Liquid Level Transmitter LFT3600
Brand: LEFOO INDUSTRIAL CO.,LTD.
Rating: 4.8 (50 reviews)

This wireless submersible liquid level transmitter features NB-IoT connectivity for wide coverage, low power use, and reliable data transmission. A 19,000 mAh lithium battery ensures long-term operation. It supports magnetic wake-up, cyclic data storage, real-time remote monitoring, Bluetooth configuration, and alarm notifications. Ideal for smart water networks, buildings, utilities, and industrial IoT.

Features

* Equipped with an NB-IoT module: Wide coverage, multiple connections, high speed, low power

consumption, and superior architecture.

* Large 19000mAh capacity for extended battery life: Low power consumption/lithium-thionyl

chloride battery makes battery swapping worry-free.

* Contactless panel, magnetic wake-up: No buttons required, simply swipe the magnetic panel across

the screen to wake it up.

* Circular data storage: Offline data is automatically stored to prevent data loss.

* Real-time data acquisition, wireless remote transmission: Real-time data monitoringvia PC and

mobile devices.

* Data storage: Multiple functions including data recording, storage, and export.

* Upper and lower limit/threshold alarms: PC webpage alerts or WeChat push notifications.

* Local Bluetooth settings: Communicate with the device via mobile phone Bluetooth to set parameters.

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Transmitter

Pump

Specification
Features
Applications

Specification of Wireless Submersible Liquid Level Transmitter LFT3600

Technical parameter

Specification of Wireless Submersible Liquid Level Transmitter LFT3600
Measuring Range	0~1...200mH₂O
Accuracy	±0.5%F.S
Overload Pressure	1.5 times rated pressure
Pressure Form	Gauge G
Measured Medium	Gases or liquids compatible with 304 and 316L stainless steel, fluororubber, or nitrile rubber.
Operating Temperature	-20℃~70℃
Storage Temperature	-40℃~85℃ (without battery)
Power Supply	NB-IoT: 3.6V@19Ah (disposable lithium-ion battery); 4G: 3.6V@19Ah (disposable lithium-ion battery)/10~30VDC
Power Consumption	Average transmit current ≤100mA@3.6VDC; Sleep current ≤20uA@3.6VDC;
Pressure Interface	Submersible/M20x1.5 mounting
Communication Method	NB-IoT / 4G
Communication Band	NB-IoT: B5/B8; 4G: Full network compatibility
Communication protocol	MQTT
SIM card	Nano SIM (12.3mm x 8.8mm x 0.67mm)
Buttons	Contactless panel interaction
Configuration method	Local Bluetooth
Reporting cycle	Adjustable from 1 to 1440 minutes, default 120 minutes
Sampling cycle	Adjustable from 10 to 600 seconds, default 60 seconds
Pressure alarm	Upper limit, lower limit, and dynamic change thresholds for liquid level can be set
Protection level	IP65
Antenna type	Built-in horn antenna / external suction cup antenna
Weight	1.9kg

Dimension

Features of Wireless Submersible Liquid Level Transmitter LFT3600

Equipped with an NB-IoT module: Wide coverage, multiple connections, high speed, low power consumption, and superior architecture.
Large 19000mAh capacity for extended battery life: Low power consumption/lithium-thionyl chloride battery makes battery swapping worry-free.
Contactless panel, magnetic wake-up: No buttons required, simply swipe the magnetic panel across the screen to wake it up.
Circular data storage: Offline data is automatically stored to prevent data loss.
Real-time data acquisition, wireless remote transmission: Real-time data monitoring via PC and mobile devices.
Data storage: Multiple functions including data recording, storage, and export.
Upper and lower limit/threshold alarms: PC webpage alerts or WeChat push notifications.
Local Bluetooth settings: Communicate with the device via mobile phone Bluetooth to set parameters.