Wireless Temperature Transmitter 03 for the Internet of Things

ST-W20 is a battery-powered wireless temperature transmitter with low power consumption design, supports multiple communication protocols, and is easy to install and use. It can be widely used in water, oil, gas, and other pressure automatic measurements and monitoring network systems.

ST-W20 Wireless Temperature Transmitter Features

An ultra-low-power battery-powered wireless liquid level transmitter developed according to the needs of customers for convenient installation.
High-capacity battery 38000mAh, sending data more than 50,000 times.
With adjustable collection time and sending frequency, support for data storage, and active upload of abnormal data.
Support 2 alarm points can be set, support COPA / LORAWAN / CLAA / I EEE802.15.4 and other communication protocols.
Easy to install and use, can be widely used in water, oil, gas, and other pressure automatic measurement and monitoring network systems.

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Range	-40℃-125℃
Process Connection	M20*1.5, etc., can be customized
Comprehensive Accuracy	±0.5%, ±0.2%, ±0.1%, ±0.075% optional
Long-term Stability	±0.3%FS/year
Operating Temperature	-40℃~85℃ (case)
Storage Temperature	-40℃~125℃
Supply Voltage	3.6VDC lithium battery 40000mAH
Communication Method	NB-IoT/LoRa/ZigBee (support Unicom Mobile Telecom 4G card) / Bluetooth
Protocol	COAP / MQTT / LoRaWAN / CLAA / IEEE802.15.4 / Bluetooth5.0
Communication Interval	60 seconds can be customized
Protection Class	IP67
Media Adaptability	Various fluids that are non-corrosive to 304 stainless steel
Vibration	10gRMS，(20~2000) Hz
Shock	100g, 11ms
Insulation	Greater than 100MΩ @250VDC
Response Time	Less than 1ms (@90%FS)
CE Certification	EMC: IEC61326-1 Class B
	Electrostatic discharge immunity: IEC61000-4-2
	Electromagnetic field immunity: IEC61000-4-3
	EFT immunity: IEC61000-4-4
	Surge immunity: IEC61000-4-5