Aranet4 PRO w/o display Sensor is an innovative battery-powered wireless sensor
For monitoring CO2, temperature, relative humidity and atmospheric pressure at home, school, office or another indoor environment
The device is portable, simple to install, easy to operate and lets you know when the monitored levels have become unhealthy.
- The sensor is compatible only with Aranet PRO base station
- Measures: CO2 (carbon dioxide), temperature, relative humidity, atmospheric pressure
- Line-of-Sight range: up to 3 km/ 1.9mi
- Operating environment: indoor use
- Transmitter power: 14 dBm
- Data Transmission: 1,2, 5, 10 minutes
- Battery life: Up to 2 years
- Protection class: IP20
- Dimensions: 70x70x24 mm/2.76×2.76×0.94″
| Measurements | CO2 (carbon dioxide), temperature, relative humidity, atmospheric pressure |
| Line of Sight Range | Bluetooth up to 10m/33ft Aranet radio up to 3 km/ 1.9mi |
| Operating environment | Indoor use |
| Transmitter Power | 14 dBm |
| Frequency | Depends on base station instructions |
| Measurement range | CO2 0-9999 ppm temperature 0°C to 50°C (32°F to 122°F) relative humidity 0% to 85% RH atmospheric pressure 0.3 to 1.1 atm (4.4 to 16.0 psi) |
| Measurement accuracy* | CO2 0-2000 ppm: ±50 ppm or 3% of reading 2001-9999 ppm: ±10% of reading temperature ±0.4°C (0.72°F) relative humidity ±3% atmospheric pressure ±0.001 atm |
| Sensor | Uses the nondispersive infrared (NDIR) sensor to measure CO2 |
| CO2 measure calibration | Automatic or manual (at 400ppm) |
| Data Transmission | 1, 2, 5, 10 minutes |
| Data Protection | Data encryption |
| Power options | 2 AA Alkaline batteries |
| Battery life | 1.3 to 12 years dependent on battery type and Tx rate** |
| Operating temperature | 0°C to 50°C (32°F to 122°F) |
| Operating humidity | 0% to 85% non-condensing |
| Dimensions | 70 x 70 x 24 mm/2.76″ x 2.76″ x 0.94″ |
| Weight | 104 g (3.7 oz) |
| Construction | Polycarbonate |
| Protection class | IP20 |
| Marking | CE |
| Compatible base stations | Aranet PRO (from v1.3.2) |
| Included | 2 AA Alkaline batteries |
| Part number | TDSPC003 (EU) TDSPC0U3 (NA) TDSPC0R3 (RU) |
* For best accuracy, recommended operating range is 10°C to 40°C (50°F to 104°F) and 20% to 60% RH (non-condensing).
Prolonged operation beyond these ranges may result in a shift of sensor reading, with slow recovery time.
** 2 x alkaline batteries at 1min Tx rate have a projected 1.3 yrs life time and 2 x lithium batteries at 10mins Tx rate have an estimated lifetime of 12+ years.
Aranet4 is not impact resistant!
Do not use the device in high humidity environments (greater than 85%)!
Do not leave the device in direct sunlight!
Auxiliary Modules
Accessories
Enquire about this product.
To ensure this item is exactly what you’re looking for, fill out the form below and one of our experts will be in touch to help.

