SenseCAP S2103 - LoRaWAN CO2, Temperature and Humidity Sensor

The SenseCAP S2103 is a wireless LoRaWAN sensor designed for accurate measurement of CO₂ concentration, air temperature, and humidity in outdoor environments. It captures CO₂ levels between 400 and 10,000 ppm, temperatures from -40°C to 85°C, 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. It’s 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-SOCl₂ 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

Lithium Battery Shipping: Due to courier restrictions, this product can only be shipped within the United Kingdom. With this item in your cart your shipping options will be limited and may cost more than our usual rates. Why?

Features

* Measures CO₂ concentration (400–10,000 ppm), temperature (-40°C to 85°C), and humidity (0–100 %RH)

* Battery-powered with up to 10 years of service life (standard Li-SOCl₂ 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

CO₂

Range 400 to 10000 ppm

Accuracy ±(30 ppm +3% of reading) (extended range ±10% of reading)

Resolution 1 ppm

Air Temperature

Range -40 to +85 °C

Accuracy ±0.2 °C

Resolution 0.01 °C

Long-term Drift <0.03 °C/year

Air Humidity

Range 0 to 100 %RH

Accuracy ±1.8 %RH

Resolution 0.01 %RH

Long-term Drift <0.25 %RH/year

General Parameters

Product Model S2103

Microcontroller Wio-E5

Support Protocol LoRaWAN v1.0.3 Class A

Built-in Bluetooth App Tool to change parameters

LoRaWAN Channel Plan IN865/EU868/US915/AU915/AS923/KR920/RU864 *

Max Transmitted Power 19dBm

Sensitivity -136dBm @ SF12 BW=125KHz

Communication Distance 2 to 10km (depending on gateway antenna and environment)

IP Rating IP66

Operating Temperature 0 to +50 °C (Effective CO₂ measurement range) -40 to +85 °C (CO₂ module not included)

Operating Humidity 0 to 90 %RH (non-condensing)

Device Weight 285g

Battery (Contained in equipment)

Battery Life Up to 10 years**

Battery Capacity 19Ah (non-rechargeable)

Battery Type Standard D-size SOCl₂ Battery

* 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:

Frequency Plan Common Name Sub-band

EU863-870 EU868 –

US902-928 US915 Sub-band from 1 to 8

AU915-928 AU915 Sub-band from 1 to 8

AS923 AS923 AS9231, AS9232, AS9233, AS9234

IN865-867 IN865 –

KR920-923 KR920 –

RU864-867 RU864 –

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