CO2/TEMP./RH Monitor Humidity And Temperature ST-501 3 mode Independent CO2 Tenmar ia

3 Independent CO2, humidity and temperature sensors.
- User operated CO2 calibration.
- USB datalogg: 50,000 records.
- Internal backup battery to maintain date/time setting. 
- Power management IC to increase batter efficiency. 
- Easy- to-Use PC software for parameter settings and data analysis.
- Internal CO2 alarm buzzer.

ST-501 is an excellent indoor air quality (IAQ) instrument measuring the carbon dioxide (CO2), Relative Humidity (RH) and Temperature.

Applications

- Building HVAC monitoring.

- Indoor air quality survey. 

- Locate the presence of combustion fumes from vehicles and appliances.

CO2 Sensing Method: NDIR (Non-Dispersive Infrared)

- Measures: Carbon dioxide in PPM, temperature (F or C), % Relative Humidity

- CO2 Measurement range: 0~9999 ppm (2001~9999 ppm over range)

- CO2 Accuracy: ± 75ppm, ± 8% of reading (0~2000 ppm)

- Display Resolution - ±1 ppm

- Datalogging: 50,000 records, 
- Fast USB download (50,000 records in less than 10 seconds.)