The SenseCAP S2103 is a wireless LoRaWAN sensor designed for accurate measurement of CO concentration, air temperature, and humidity in outdoor environments. It captures CO levels between 400 and 10,000 ppm, temperatures from -40C to 85C, and relative humidity from 0 to 100 %RH (non-condensing), making it suitable for industrial environmental monitoring.

This sensor is built for longevity and deployment flexibility. Its housed in an IP66-rated enclosure to withstand harsh weather, from high UV exposure to rain and dust. It transmits data reliably over LoRaWAN with a range of up to 2km in urban areas and 10km in line-of-sight conditions. Power comes from a standard Li-SOCl D-size battery with up to 10 years of service life, reducing maintenance needs.

Setup and configuration are handled via built-in Bluetooth using the SenseCAP Mate app. The sensor supports OTA updates and can be integrated into LoRaWAN networks such as The Things Network, Loriot, or Chirpstack. Remote data access and device management are available through the SenseCAP Portal, which supports MQTT and HTTP APIs for custom integration.

The S2103 has been reliability-tested for performance under extreme temperature swings, water exposure, freezing, and long-range communication, ensuring dependable operation throughout its service life. It also supports time interval settings and threshold alerts through the app interface.

Videos

Network Example

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Features

• Measures CO concentration (40010,000 ppm), temperature (-40C to 85C), and humidity (0100 %RH)
• Battery-powered with up to 10 years of service life (standard Li-SOCl D-size battery)
• Long-range LoRaWAN transmission: 2km in urban areas, up to 10km line-of-sight
• Compatible with LoRaWAN v1.0.3 Class A and major network servers (e.g. TTN, Loriot, Chirpstack)
• Built-in Bluetooth for quick configuration and OTA updates via SenseCAP Mate App
• Industrial-grade IP66 enclosure for outdoor use in harsh environments
• Tested for waterproofing, temperature cycling, freezing, and long-range communication reliability
• Supports MQTT and HTTP API via SenseCAP Portal for data access and remote device management
• No-code setup process with scan-and-play configuration
• Set thresholds, time intervals, and alerts through the app (threshold/alert features coming soon)

Specifications

* Every single device can support 7 frequency plans.

** This wireless LoRaWAN sensor supports up to 10 years of battery life, but the actual battery life varies from data upload interval, data payload, and distance between gateways.

** We have updated the battery life table, which should provide you with a better estimate of the actual battery life of your device. We recommend that you refer to the updated table when making any judgment or decision related to the battery life of your device.

Resources

• Product Wiki
• Connect S210X Sensors to Azure IoT Central User Guide
• Battery Life Prediction Table
• SenseCAP S210X Decoder
• Product Number: Seeed 114992868

LoRaWAN Frequency

S210x Devices are manufactured to support the universal frequency plan from 863MHz ~928MHz in one SKU. That is to say, every single device can support the frequency plans below – the sensor can be switched to other frequency plans at any time:

The frequency plan setting is none by default, and it will not transmit RF signal until it has been set by the app via Bluetooth at the first power-up. And it can be changed to other frequency plans at any time.

Package Contents

• 1x SenseCAP S2103 – LoRaWAN CO2, Temperature and Humidity Sensor
• 2x Bracket
• 4x KA4x20mm Self-drilling Screw
• 1x Quick Start Guide