Home » LoraWAN®-Based Manhole Cover Monitoring LW007-MC

LoRaWAN®-Based Smart Manhole Sensor

The LW007-MC manhole cover monitoring sensor is installed on the back of the manhole cover, which is placed horizontally as a normal state. The alarm condition is triggered when the manhole cover is tilted and the inclination angle is over 10° (configurable). The alarm signal is sent to the monitoring center through wireless transmission. Then, the monitoring center analyzes the data and judges the alarm.
The device, shown in Figure 1, can provide three wireless communication modes: LoRaWAN®-Based, NB-IoT and GPRS. It is powered by battery, and features easy mounting, long battery life, high detection accuracy and stable operation.

Parameters

Working frequency	433MHz/470MHz/868MHz/915MHz	LoRaWAN®
	B1/B3/B5/B8/B20	NB-IoT
	850/900/1800/1900MHz	GPRS
Equipment type	Class A	LoRaWAN®
Antenna interface	FPC
Operating Voltage	Lithium battery ER26500+SPC1550(3.6V)	ER26500+SPC1550 Not rechargeable
Battery Life	3-5years	Test condition: Work normally and report data up to twice a day
Maximum working current	＜200mA	LoRaWAN®
	＜350mA	NB-IoT
	＜2000mA	GPRS
Sleeping current	＜25.0uA
Protection level Shell material	IP68 PC+ABS Anti-aging, anti-corrosion, anti-collision materials
Operating temperature	(-25～+85)℃	Consumer SIM Card
Operating temperature	(-40～+85)℃	Industrial SIM Card/LoRaWAN®
Storage temperature	(-40～+85)℃
Measuring range	0°～ 180°
Measurement accuracy	±2°

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