SR04 CO2
Radio room sensor for measuring CO2 content, temperature and relative humidity (optionally) in living and office spaces. The device to be mounted via adhesive pad or screws sends its measured values unidirectionally to corresponding receivers or gateways, which process the information directly or – depending on the application – forward it to a central control unit.
| Measuring values | CO2, temperature, humidity, (optional) |
|---|---|
| Radio technology | EnOcean (IEC 14543-3-10) |
| Frequency | 868 MHz, optional:, 902 MHz (Americas) |
| Power supply | 15..24 V = (±10%) or 24 V ~ (±10%) SELV |
| Power consumption | max. 1,5 W (24 V =) | 3,6 VA (24 V ~) |
| Measuring range temp. | 0..+51 °C |
| Measuring range humidity | 0..100% rH non-condensing |
| Measuring range CO2 | 0..2550 ppm |
| Accuracy temperature | ±1% of measuring range (typ. at 21 °C) |
| Accuracy humidity | ±3% between 20..80% rH (typ. at 21 °C) |
| Accuracy CO2 | ±75 ppm, >750 ppm: ±10% (typ. at 21 °C) |
| Measuring intervall | WakeUp time = 100 sec. (default) |
| Calibration | self-calibration, Dual Channel |
| Display | LCD 29x12 mm, monochrome, (optional), 3 LEDs indicating air quality (CO2, traffic light function ‘TLF’), (optional) |
| Enclosure | PC, pure white |
| Protection | IP30 according to EN 60529 |
| Cable entry | breaking points top/bottom, rear entry |
| Connection electrical | terminal block, max. 1,5 mm² |
| Ambient condition | 0..+50 °C, max. 85% rH non-condensing |
| Weight | 90 g |
| Mounting | surface mounted on flush-mounting box (Ø=68 mm), screw mounted onto flat surface |
| Notes | optional with display "LCD", optional with traffic light function "TLF" |