SIRO is an indoor air quality transmitter with a modern design. The transmitter is available with several optional air quality sensors. The modular device can be equipped with CO2 concentration and VOC (Volatile Organic Compounds) measurements or alternatively PM (Particulate Matter) measurement, and in addition, temperature and humidity measurements. SIRO-MOD series models use Modbus serial communication protocol.
- Measuring elements:
- CO2: Non-dispersive infrared (NDIR); 0...2000 ppm
- VOC: Complementary Metal Oxide Semiconductor (CMOS); range: * - see datasheet
- PM: Laser-based light scattering particle sensing
- Temperature: Integrated to CMOS
- Relative humidity: Thermoset polymer capacitive sensing element
- Field configurable outputs for selected measurements; Configuration possible through MODBUS
- Proportional output options including voltage (0–10 V, 0–5 V, 2–10 V) and optional current (4–20 mA); MODBUS
- Offset feature enabling field calibration for each measurement parameter (CO2, VOC, PM, RH, T)
- Optional LCD-display and buttons
- Operating temperature: 0…50 °C
- Protection standard: IP20
More about air quality transmitters SIRO series on HK Instruments website [EN]
More about air quality transmitters SIRO-MOD series on HK Instruments website [EN]
SIRO series datasheet [EN]
SIRO-MOD series datasheet [EN]
