Inside ERS CO2 you will find internal sensors for measuring indoor temperature, humidity, light, motion, and of course, CO2 levels. This gives you the opportunity to create the best possible workplace, classroom, library, or another public area.

This sensor also has a traffic light feature to let you know when a certain threshold of CO2 levels, or any other value, has been reached. The threshold value is configurable, and you can choose the color of the light, the frequency, and the light intensity.

In stock (can be backordered)

Quantity Price
1+ 186 EUR
10+ 155 EUR
100+ 135 EUR
SKU: ERS2CO2 Categories: , ,


ERS CO2 has the capability of measuring almost everything regarding the indoor environment. You will have full control over the air quality, temperature, light, and humidity for either homes or workplaces. It also detects motion with a passive infrared camera and is one of our most powerful indoor climate sensors. This is a smart and professional LoRaWAN® device and very easy to configure. Its design is minimalistic, which makes it ideal for mounting on walls in any area.

The battery life is estimated to be up to 10 years but depends on sample interval, transmit interval, data rate, and environmental factors. It is powered by two 3,6V AA lithium batteries.

All our sensors are equipped with NFC (Near Field Communication) for easy configuration with an Android phone. You can change the sample rate, data rate, encryption keys, triggers, activation, and much more in our application “Sensor Settings“.  All our sensors are built on the LoRaWAN® stack from Semtech.

Channel plans for US 902-928, EU 863-870, AS 923, AU 915-928, and KR 920-923.

Batteries are not included.

Please visit our Documents & Firmware page for more information about this product.

Additional information

Weight 0.1 kg
Dimensions 76 × 76 × 23 mm

Plastic PC/ABS

IP rating



Screw/Adhesive tape

Operating temperature


Operating humidity

0-85% RH

Usage environment


Battery type

2 x 3.6V AA Lithium Battery

Expected battery life

Up to 10 years. Depending on the sample rate, transmit interval, data rate, and environmental factors.

Sampling interval

Default 10 min. Configurable via NFC and downlink.

Data upload interval

Default 10 min. Configurable via NFC and downlink.

Wireless technology

LoRaWAN 1.0 and 1.1

Wireless security

LoRaWAN End-to-End encryption (AES-CTR), Data Integrity Protection (AES-CMAC)

LoRaWAN device type

Class A/C (configurable) End-device

Supported LoRaWAN® features

OTAA, ABP, ADR, Adaptive Channel Setup

Supported LoRaWAN® regions

US902 – 928, EU863 – 870, AS923, AU915 – 928, KR920 – 923, RU864, IN865

RF transmit power

14 dBm / 20 dBm (Region specific)