Indoor Air Quality Sensor with LED Indicator ANDRALQA-U / ANDRALQA-I for measuring the air quality in living and office spaces etc, optionally with 0-10 V or 4-20 mA output. The ANDRALQA-U/ ANDRALQA-I is a VOC/mixed gas sensor. The CO2 equivalents are derived from a conforming algorithm as the odor emissions are overlaying the CO2 value (see graphics). Long-term drifting and operational deterioration can be eliminated by regularly running the automatic calibration. The integrated LED indicator had a LED color scheme: green light means great air quality, yellow light means average air quality and red light means poor air quality.
Additional options for sensor ANDRALQA-U / ANDRALQA-I (surcharges):
- active potentiometer,
- passive potentiometer,
- CO2 sensor,
- display,
- relay.
Product number
Product number: ANDRALQA-U / ANDRALQA-I
Technical Specifications
| Power supply: | 12 … 34 VAC/VDC |
| Output: | 0…10V or 4…20mA |
| Measuring range: | 0-2000ppm |
| Analog output load: | min. Load resistance 10 kOhm / load 600 Ohm |
| Operating temperature: | 0°C…+50°C |
| Measurements housing: | 87,5 x 87,5 x 30 mm |
| Housing: | Material ABS, Colour RAL 9011 |
| Connection: | Screw clamps max. 1.5mm² |
| Protection class: | IP20 |
| Lights: | Green LED at 0 … 800 ppm Orange LED at 800 … 1600 ppm Red LED at 1600 … 2000 ppm |
Datasheet ANDRALQA-U / ANDRALQA-I
Versions of ANDRALQA-U / ANDRALQA-I
| Type | Output ppm | Output Temp. | Output humidity |
| ANDRALQA-U | 0-10V | ||
| ANDRALQA/T-U | 0-10V | 0-10V | |
| ANDRALQA/T/F-U | 0-10V | 0-10V | 0-10V |
| ANDRALQA-I | 4-20mA | ||
| ANDRALQA/T-I | 4-20mA | 4-20mA | |
| ANDRALQA/F-I | 4-20mA | 4-20mA |
How to order?
Order example: ANDRALQA-U / ANDRALQA-I Sensor with LED Indicator and 4-20 mA output = ANDRALQA-I
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