Descrição
The Elsys ERS CO2 is a LoRaWAN indoor air quality sensor for meeting rooms, classrooms, offices and libraries. It measures CO2, temperature, humidity, light and motion (PIR), so you can see when a room needs more ventilation and link air quality to how the room is used. It runs on batteries for up to 10 years, depending on settings.
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Key features
- Five measurements: CO2, temperature, humidity, light and PIR motion.
- Traffic light for CO2 or any other value, with configurable threshold, colour, frequency and intensity.
- Battery life up to 10 years on 2 × AA 3.6 V lithium batteries (ER14505), depending on settings.
- NFC set-up from a smartphone or by downlink.
- LoRaWAN 1.0.4 Class A, OTAA/ABP, ADR, end-to-end AES encryption.
Which frequency plan do I need?
| LoRaWAN region | Typical markets | Supported by Elsys |
|---|---|---|
| EU868 | Europe, Middle East, Africa | Yes |
| US915 | North and South America | Yes |
| AU915 | Australia, New Zealand, parts of Latin America | Yes |
| AS923 | Asia-Pacific | Yes |
| IN865 | India | Yes |
| KR923 / HK923 | South Korea / Hong Kong | Yes |
This shop lists one ERS CO2 variant (SKU ERS-CO2). Contact us to confirm the frequency plan for your country before ordering.
Mounting
Indoor wall mounting at about 1.6 m with screws or adhesive tape (Elsys recommended installation height).
Technical specifications
| Measurements | CO2, temperature, humidity, light, motion (PIR) |
| Wireless | LoRaWAN 1.0.4, RP2-1.0.3, Class A; OTAA, ABP, ADR |
| Security | End-to-end encryption (AES-CTR), data integrity (AES-CMAC) |
| Link budget / RF power | 137 dB (SF7) to 151 dB (SF12); max 14 dBm EIRP |
| Intervals | Sampling and upload default 10 min, configurable |
| Power | 2 × AA 3.6 V Li-SOCl2 (ER14505), not included; up to 10 years |
| Environment | Indoor, IP20, 0 to 50 °C, 0–85 % RH |
| Dimensions / weight | 76 × 76 × 23 mm, 60 g |
| Compliance | RED 2014/53/EU, RoHS 2011/65/EU, WEEE 2012/19/EU |
Source: Elsys ERS CO2 LoRa product page (current ERS2 CO2 generation).
Sensor and software: what you get
On the sensor: measurements, thresholds and the traffic light. In software: indoor air quality and room use dashboards in VemSpace with a 60-day free trial (see software plans); more on indoor air quality monitoring.
Installation and accessories
Connect through a LoRaWAN gateway such as the Milesight UG65. Without CO2, choose the Elsys ERS; for particles and more parameters see the Milesight AM319 or AM307.
Frequently asked questions
What does the Elsys ERS CO2 measure?
CO2, temperature, humidity, light and motion (PIR).
How long does the battery last?
Up to 10 years, depending on sample rate, transmit interval, data rate and environment.
Which LoRaWAN frequencies are supported?
Elsys lists EU868, IN865, US915, AU915, AS923, KR923 and HK923.
Can it warn when CO2 is too high?
Yes. The built-in traffic light can signal when a configurable CO2 threshold is reached.
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