Sauermann CO2 transmitters COT 212-R

Sauermann CO₂ Transmitter COT 212-R

The Sauermann COT 212-R is a high-performance transmitter designed for precise CO₂ and temperature measurement in demanding environments. Equipped with a 2-line display and IP65-rated housing, it is built for durability and ease of monitoring. With versatile output options and dual relay control, this transmitter supports advanced automation in ventilation and air quality management systems.

Features

1. Dual parameter measurement: CO₂ concentration (ppm) and temperature (°F, °C)

2. 2-line display for simultaneous real-time readings of both parameters

3. IP65-rated housing for dust and water protection, suitable for harsh conditions

4. Flexible output configurations: 4-20 mA, 0-20 mA, 0-5 V, or 0-10 V (4 wires)

5. Two changeover relays for automated control of ventilation or alarms

6. Wide power supply range for installation flexibility (24 Vac/Vdc or 100–240 Vac)

Applications

• HVAC control in industrial and commercial facilities

• Air quality monitoring in production plants or warehouses

• Agricultural environments requiring CO₂ regulation

• Public spaces where safety and comfort must be maintained

Specifications

• Measurement units: °F, °C, ppm

• Parameters: CO₂, Temperature

• Display: 2-line display

• IP Protection: IP65

• Standards: 2011/65/EU RoHS II, 2012/19/EU WEEE, 2014/30/EU EMC, 2014/35/EU Low Voltage

• Power supply: 24 Vac/Vdc or 100–240 Vac

• Outputs: 2 × 4-20 mA, 2 × 0-20 mA, 2 × 0-5 V, or 2 × 0-10 V (4 wires)

• Relay: 2 changeover relays, 3 A / 230 V

• Communication: No Ethernet, No ModBus

• Dimensions: 125 × 59.2 × 202 mm

• Weight: 240 g

• Operating temperature: -10°C to 50°C

• Storage temperature: -10°C to 70°C

Conclusion

The Sauermann COT 212-R delivers accurate CO₂ and temperature monitoring in a robust, weather-resistant design. With flexible outputs, dual relay control, and clear dual-line display, it is an ideal solution for applications requiring both reliability and versatility in environmental measurement.