SenseCAP Wireless LoRaWAN Barometric Pressure Sensor AU915/AS923
SenseCAP Wireless Barometric Pressure Sensor measures atmospheric pressure, featuring high-precision, stability, and high EMC robustness. It’s designed with an air pressure sensor, a custom battery, and an industry-grade enclosure, optimized for outdoor use cases that need reliable data collected over years.
SenseCAP Wireless Barometric Pressure Sensor measures atmospheric pressure in the range of 300~1100 hPa. Featuring high-precision, stability, and high EMC robustness, this sensor is suitable for industrial applications such as weather stations, outdoor farms, tea plantations, greenhouses, and more.
This device incorporates a built-in LoRa transmitter based on SX1276 for long-range transmission, a barometric 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 air pressure 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 environmental factors and 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)
Applications
Specifications
| Barometric Pressure |
| Parameters |
Condition |
Value |
| Range |
- |
300~1100 hPa |
| Resolution |
- |
1 Pa |
| Relative Accuracy |
700 to 900 hPa
25 to 40 ℃
|
±0.12 hPa |
| Absolute Accuracy |
300 to 1100 hPa
-20 to 0 ℃
|
±1.7 hPa |
| Absolute Accuracy |
300 to 1100 hPa
0 to 65 ℃
|
±1.0 hPa |
| Temperature Coefficient Offset |
900 hPa
25 to 40 °C
|
1.5 Pa/K |
| Drift |
- |
±1.0 hPa/year |
| General Parameters |
| Product Model |
LoRa-S-915-Baro-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 ℃(full accuracy: 0 to 65℃) |
| Operating Humidity |
0 to 100 %RH (non-condensing) |
| Device Weight |
237g |
| 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) |
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.
Part List
| Part List |
| 1 |
Sensor |
x1 |
| 2 |
Bracket |
x1 |
| 3 |
M4 Self-drilling Screw |
x4 |
| 4 |
M3 Self-drilling Screw |
x2 |
