SenseCAP Wireless LoRaWAN Air Temperature and Humidity Sensor AU915

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SenseCAP Wireless LoRaWAN Air Temperature and Humidity Sensor AU915

SenseCAP Wireless Air Temperature and Humidity Sensor measures temperature and humidity in atmosphere. It's designed with a 2-in-1 sensor, a custom battery and an IP66 enclosure, optimized for outdoor use cases that need reliable data collection over years.

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), and API for device & data management. SenseCAP supports different communication protocols, such as LoRa, 2G, 4G, NB-IoT, and more.

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.

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)

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-915-TH-01
Microcontroller	Ultra-low-power MCU
Support Protocol	Based on LoRaWAN v1.0.2 protocol
LoRa Channel Plan	AU915
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	CE, FCC, RoHS
Battery (Contained in equipment)
Battery Life	≥ 3 year (upload data once per hour)
Battery Voltage	3.6V
Battery Capacity	19Ah (non-rechargeable)

Please refer to this document for how to connect this device with a LoRaWAN gateway.

Documentations

LoRaWAN Gateway and Wireless Sensor Catalog V1.6

SenseCAP LoRaWAN Sensor User Manual V1.1

SenseCAP Product User Guide(LoRaWAN Series) V1.3