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SenseCAP Wireless CO2 Sensor – LoRaWAN

SenseCAP Wireless CO2 Sensor measures levels of CO2 emission in the atmosphere, designed with an NDIR CO2 sensor and a custom battery. It’s dustproof, optimal for use cases that need reliable data collection, even in dusted indoor environments such as chicken farms.

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About SenseCAP

Among the first launch of Seeed industrial IoT (IIoT) product series, SenseCAP is focusing on wireless environmental sensing applications: smart “https://solution.seeedstudio.com”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.

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SenseCAP Wireless CO2 Sensor measures the level of carbon dioxide (CO2) gas at the range of 0 ~ 40000 ppm in the atmosphere, applicable for indoor environments. It is perfect for monitoring CO2 ppm in greenhouses, industrial campuses, factories, schools, office buildings, hotels, hospitals, transportation stations, and anywhere that data of CO2 emission is needed.

This device incorporates a built-in LoRa transmitter based on SX1276 for long-range transmission, an NDIR CO2 sensor, and a custom battery. It is specifically designed and optimized for use cases powering end devices by batteries over the years. To minimize the power consumption, the device wakes up, transmits the collected CO2 data to the gateway, and then goes back to sleep.

Under the best of circumstances, the battery is expected to last for 1.5 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 Node adopts a modular design, integrating the data logger with the sensor probe, which is replaceable by other SenseCAP sensor probes.

The data logger part is designed with industry standards and equipped with an IP66 waterproof enclosure. To ensure accuracy and sensitivity, we chose the material with the optimal breathable aperture for the sensor probe, which however is not waterproof. Hence, this CO2 Sensor is applicable only for indoor environments. The product is dustproof, making it ideal for environments such as chicken farms, where there is poultry dust.

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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 (coming soon) for you to use with SenseCAP Sensors seamlessly without extra huge workload for provisioning.

 

System Architecture

SenseCAP Architecture

System Architecture

SenseCAP Sensor + Other LoRaWAN Gateway Architecture

Other System Architecture

Features

  • Support LoRaWAN protocol Class A
  • NDIR CO2 sensor technology
  • Dual-channel detection for superior stability
  • Ultra-wide-distance transmission: 10km in line of sight scene, 2 km in urban scenes
  • Battery life ≥ 1.5 years
  • Rapid installation and deployment (see the video below)

Applications

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

User Cases

SenseCAP has been deployed in different application scenarios including tea plantations, greenhouses, outdoor triticale farms and weather stations, etc., Please see details below.

Specifications

CO2
ParametersConditionValue
Range0 to 40000 ppm
Accuracy400 to 10000ppm±(30 ppm + 3 %MV)
Resolution1 ppm
Temperature StabilityT = 0 to 50 ℃±2.5 ppm/℃
Parameters
Product FrequencyEU868, US915
MicrocontrollerUltra-low-power MCU
Support ProtocolBased on LoRaWAN v1.0.2 protocol
LoRa Channel PlanEU868, US915
LoRa Power Output16 dBm (EIRP)
Sensitivity-137.5dBm(SF12, BW125KHz)
Current Consumption5 μA (sleep mode)
120 mA max(active mode)
Communication Distance2 to 10 km (depending on different antennas and environments)
IP RatingIP66 (Sensor Node); Indoor (Sensor Probe)
UV Resistanceanti-aging (from rain/sun exposure): UL746C F1
Enclosure MaterialPC
Operating Temperature0 ℃ to +50 ℃
Operating Humidity0 to 95 %RH
Device Weight319g
CertificationCE, FCC, RoHS
Battery (Contained in equipment)
Battery Life≥ 3 year (upload data once per hour)
Battery Voltage3.6V
Battery Capacity19Ah (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 the follows. Please refer to [user manual] for how to connect this device with a LoRaWAN gateway.

LoRa Channel Plan for EU868
Uplink (MHz)868.1 – SF7BW125 to SF12BW125
868.3 – SF7BW125 to SF12BW125 and SF7BW250
868.5 – SF7BW125 to SF12BW125
867.1 – SF7BW125 to SF12BW125
867.3 – SF7BW125 to SF12BW125
867.5 – SF7BW125 to SF12BW125
867.7 – SF7BW125 to SF12BW125
867.9 – SF7BW125 to SF12BW125
Downlink (MHz)Uplink channels 1-8 (RX1)
869.525 – SF9BW125 (RX2 downlink only)
LoRa Channel Plan for US915
Uplink (MHz)903.9 – SF7BW125 to SF10BW125
904.1 – SF7BW125 to SF10BW125
904.3 – SF7BW125 to SF10BW125
904.5 – SF7BW125 to SF10BW125
904.7 – SF7BW125 to SF10BW125
904.9 – SF7BW125 to SF10BW125
905.1 – SF7BW125 to SF10BW125
905.3 – SF7BW125 to SF10BW125
Downlink (MHz)923.3 – SF7BW500 to SF12BW500
923.9 – SF7BW500 to SF12BW500
924.5 – SF7BW500 to SF12BW500
925.1 – SF7BW500 to SF12BW500
925.7 – SF7BW500 to SF12BW500
926.3 – SF7BW500 to SF12BW500
926.9 – SF7BW500 to SF12BW500
927.5 – SF7BW500 to SF12BW500

Part List

Part List
1Sensorx1
2Bracketx1
3M4 Self-drilling Screwx4
4M3 Self-drilling Screwx2

 

Datasheet – SenseCAP Wireless Light Intensity Sensor – LoRaWAN

SenseCAP LoRaWAN Sensor User Manual-V1.0

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