Elta 149-EC-CO2TH3M Room Sensor CO2, Temperature and Humidity 0-10V Modbus
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Product Details
Specifications
Product specifications
| Brand | Elta |
| Model | 149-EC-CO2TH3M |
| Type | CO2, temperature and humidity room sensor |
| Supply | 24V AC/DC or 230V 50/60Hz |
| Outputs | 3 x 0-10V (CO2, temperature, RH), configurable 0/2-10V |
| Communications | RS-485 Modbus RTU |
| Relay | Volt-free, CO2 alarm |
| Indication | Traffic light LED for CO2 |
Summary
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The Elta 149-EC-CO2TH3M is a room sensor that measures CO2, temperature and humidity and outputs a 0-10V signal for each, so EC fans or speed controllers can ramp ventilation to real occupancy. This is the Modbus version for connection to a BMS.
- Measures CO2, temperature and relative humidity
- 3 x 0-10V outputs to drive EC fans or speed controllers
- RS-485 Modbus RTU
- Volt-free relay for a CO2 alarm
- Traffic light LED shows CO2 level
- 24V AC/DC or 230V supply
Suitable for
- Demand controlled ventilation in classrooms, offices and meeting rooms
- Part F CO2 monitoring
- BMS connected ventilation
Installation
Mount at breathing height in the occupied space, away from windows, doors and supply diffusers. Wire the 0-10V output to the fan or controller and the Modbus to the BMS. Wiring by a qualified electrician.
Specifications
| Brand | Elta |
| Model | 149-EC-CO2TH3M |
| Type | CO2, temperature and humidity room sensor |
| Supply | 24V AC/DC or 230V 50/60Hz |
| Outputs | 3 x 0-10V (CO2, temperature, RH), configurable 0/2-10V |
| Communications | RS-485 Modbus RTU |
| Relay | Volt-free, CO2 alarm |
| Indication | Traffic light LED for CO2 |
Product Description
The Elta 149-EC-CO2TH3M is a room sensor that measures CO2, temperature and humidity and outputs a 0-10V signal for each, so EC fans or speed controllers can ramp ventilation to real occupancy. This is the Modbus version for connection to a BMS.
- Measures CO2, temperature and relative humidity
- 3 x 0-10V outputs to drive EC fans or speed controllers
- RS-485 Modbus RTU
- Volt-free relay for a CO2 alarm
- Traffic light LED shows CO2 level
- 24V AC/DC or 230V supply
Suitable for
- Demand controlled ventilation in classrooms, offices and meeting rooms
- Part F CO2 monitoring
- BMS connected ventilation
Installation
Mount at breathing height in the occupied space, away from windows, doors and supply diffusers. Wire the 0-10V output to the fan or controller and the Modbus to the BMS. Wiring by a qualified electrician.
Specifications
| Brand | Elta |
| Model | 149-EC-CO2TH3M |
| Type | CO2, temperature and humidity room sensor |
| Supply | 24V AC/DC or 230V 50/60Hz |
| Outputs | 3 x 0-10V (CO2, temperature, RH), configurable 0/2-10V |
| Communications | RS-485 Modbus RTU |
| Relay | Volt-free, CO2 alarm |
| Indication | Traffic light LED for CO2 |
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What does the 149-EC-CO2TH3M do?
It measures CO2, temperature and humidity and outputs 0-10V signals to control EC fans.
Does it connect to a BMS?
Yes, this M version has RS-485 Modbus RTU.
Does it help with Part F?
Elta state it complies with Part F guidance for CO2 monitoring.
