S+S Room humidity, tempe­rature and CO2 sensor - RFTM-LQ-CO2-Modbus

Introducing the S+S Room Humidity, Temperature, and CO2 Sensor

Enhance your indoor environment with the innovative S+S Room humidity, temperature, and CO2 sensor - RFTM-LQ-CO2-Modbus from S+S Regeltechnik GmbH. This multifunctional room climate sensor comes in a sleek plastic housing with a snap-on cover, featuring 4-hole mounting options and the choice of with or without display. Ideal for a variety of settings such as offices, hotels, conference rooms, homes, and shops, this sensor efficiently monitors and controls the entire room climate for energy-efficient ventilation, reduced operating costs, and enhanced well-being.

Key Features and Benefits

With a wide range of capabilities, the sensor accurately measures humidity (0-100% RH), temperature (0-50°C), air quality (VOC), particulate matter (PM), and CO2 levels (0-5000 ppm), also functioning as a room control device for setpoint percentage. The sensor is easily configurable from the default SI unit system to Imperial via Modbus, allowing for seamless monitoring and access to crucial data including temperature, humidity, air quality, particulate matter, and CO2. By providing precise and real-time feedback, the sensor facilitates tailored ventilation strategies and overall optimization of indoor air quality.

Equipped with a long-term stable digital humidity and temperature sensor, the sensor ensures accurate measurements over time. The air quality assessment is based on a VOC gas sensor, while CO2 levels are detected through an optical NDIR sensor. Additionally, the precise detection of particulate matter in the 0.3 to 10-micrometer range is enabled by an optical PM sensor.

The sensor boasts an innovative Modbus interface with galvanic isolation, RS485 connectivity, adjustable bus parameters, and a user-friendly setup with DIP switches and LED status indicators. The sensor’s robust design, factory calibration, and potential fine-tuning by professionals further enhance its reliability and performance.

Technical Specifications

Power Supply: 24 V AC/DC (±10%)

CO2 Sensor: Optical NDIR sensor with automatic and manual calibration

VOC Sensor: VOC sensor (Metal oxide) with automatic calibration

Bus Protocol: Modbus (RTU-Mode) with adjustable address range 0-247

Measurement Ranges: CO2 0-5000 ppm, VOC 0-100% air quality

Humidity Accuracy: ±2% (20-80% RH) at +25°C, otherwise ±3.0%

Temperature Accuracy: ±0.2 K at +25°C

Operating Environment: Humidity 0-95% RH, Temperature 0-50°C

Enclosure: Plastic ABS housing, dimensions 98 x 98 x 33 mm

Mounting: Wall mount or on UP box with 4-hole configuration

Protection Rating: IP30

For more detailed technical information, refer to the product datasheet from the manufacturer's website or authorized dealers.