SenseCAP Wireless Air Temperature and Humidity Sensor - LoRaWAN AS923 MHz

Product Upgrades

We have an upgraded version, please refer to SenseCAP S210X.       SenseCAP Wireless Air Temperature and Humidity Sensor measures temperature and humidity in the atmosphere at the range of -40℃ to 85℃ and 0 to 100 %RH (non-condensing) respectively. With a high-precision measurement chip, this sensor features stability and reliability, making it widely applicable in industrial environmental sensing scenarios.     This device incorporates a built-in LoRa transmitter based on SX1276 for long-range transmission, a 2-in-1 sensor, and a custom battery. It is specifically designed and optimized for use cases powering end devices by batteries for years. To minimize the power consumption, the device wakes up, transmits the collected temperature and humidity data to the gateway, and then goes back to sleep.     Under the best of circumstances, the battery is expected to last for more than 8 years, depending on the data transmission intervals. Please kindly note that the default interval is once per hour. If you'd like to change the data upload interval, please refer to this document.   SenseCAP Sensor adopts a modular design, integrating the data-logger with the sensor probe, which can be replaced by other SenseCAP sensor probes. This sensor's data logger is rated IP66, and the sensor probe is rated IP65.   About SenseCAP   Among the first launch of Seeed industrial IoT (IIoT) product series, SenseCAP is focusing on wireless environmental sensing applications: smart agriculture, precision farming, and smart city, to name a few. It consists of hardware products (sensors, data-loggers & gateways, etc.), software services (SenseCAP portal, mobile App, open dashboard), an API for device & data management.     

Note

SenseCAP Sensor is fully compliant with LoRaWAN specifications and can be used with standard LoRaWAN gateways. Please choose the corresponding gateway according to the sensor frequency.

 

   

Seeed also provides SenseCAP LoRaWAN Gateway for you to use with SenseCAP Sensors seamlessly without an extra huge workload for provisioning. If you would like to use SenseCAP LoRaWAN gateway and SenseCAP cloud platform, please email us at sensecap@seeed.cc. 

 

 

Note

Please email sensecap[at]seeed[dot]cc to request any technical support for this product. 

 

System Architecture SenseCAP Architecture

 

SenseCAP Sensor + Other LoRaWAN Gateway Architecture

Features

• Support LoRaWAN protocol Class A
• High reliability and stability
• Ultra-wide-distance transmission: 10km in line of sight scene, 2 km in urban scenes
• Battery life ≥ 8 years
• Rapid installation and deployment (see the video below)

Applications

• Smart Agriculture
• Smart Building and Industrial Control
• Environmental Monitoring
• Other Wireless Sensing Applications

Specifications

Air Temperature
Range	-40 ℃ to +85 ℃
Accuracy	±0.2 ℃
Resolution	0.1 ℃
Drift	＜0.03 ℃/year
Air Humidity
Range	0 to 100 %RH (non-condensing)
Accuracy	±1.5 %RH
Resolution	1 %RH
Drift	＜0.25 %RH/year
General Parameters
Product Model	LoRa-S-AS923-TH-01
Microcontroller	Ultra-low-power MCU
Support Protocol	Based on LoRaWAN v1.0.2 protocol
LoRa Channel Plan	AS923
LoRa Power Output	16 dBm (EIRP)
Sensitivity	-136.5dBm(SF12, BW125KHz)
Current Consumption	5 μA (sleep mode) 120 mA max(active mode)
Communication Distance	2 to 10 km (depending on different antennas and environments)
IP Rating	IP66 (Sensor Node); IP65 (Sensor Probe)
UV Resistance	anti-aging (from rain/sun exposure): UL746C F1
Enclosure Material	PC
Operating Temperature	-40 ℃ to +85 ℃
Operating Humidity	0 to 100 %RH (non-condensing)
Device Weight	236g
Certification	RoHS
Battery (Contained in equipment)
Battery Life	≥ 3 years (upload data once per hour)
Battery Voltage	3.6V
Battery Capacity	19Ah (non-rechargeable)

LoRa Frequency The device is designed with a fixed LoRa channel, which can not be modified by users. The supported channels are as follows. Please refer to this document for how to connect this device with a LoRaWAN gateway.          

LoRa Channel Plan
Uplink (MHz)	923.2 - SF7BW125 to SF12BW125 923.4 - SF7BW125 to SF12BW125 923.6 - SF7BW125 to SF12BW125 923.8 - SF7BW125 to SF12BW125 924.0 - SF7BW125 to SF12BW125 924.2 - SF7BW125 to SF12BW125 924.4 - SF7BW125 to SF12BW125 924.6 - SF7BW125 to SF12BW125 924.5 - SF7BW250 924.8 - FSK
Downlink (MHz)	Uplink channels 1-10 (RX1) 923.2 - SF10BW125 (RX2)

 
Part List  

Part List
1	Sensor	x1
2	Bracket	x1
3	M4 Self-drilling Screw	x4
4	M3 Self-drilling Screw	x2