TENMARS ST-502 Desktop Indoor Air Quality (IAQ) Monitor (0 – 9999 ppm)

Application:
- Building HVAC monitoring.
- Indoor air quality survey.
Specification
- Power adaptor AC 100V~240V to DC 12V/1.0A.
- Internal backup battery to maintain date/time setting.
- Datalogging capacity 17000 records.
- Operation condition :0-50˚C (32-122˚F),5-95%RH(non-condensing).
- Storage temperature & Humidity:-10~60˚C (14~140˚F) ≦70%RH.
CO2:
Type:Non-dispersive infra-red(NDIR)
Measurement Range: 0 to 9999ppm
Accuracy: ±5% of reading or ±75ppm.(0-2000ppm, others out of scale range)
Resolution: ±1ppm
Response Time: Typical 2 minutes by 90%
Temperature:
Type: Thermistor
Measurement Range: 0˚C~50˚C/32˚F~122˚F
Accuracy: ±1.0˚C/±1.8˚F
Resolution: 0.1˚C/0.1˚F
Response Time: Typical 1 second
Relative Humidity:
Type: Capacitive
Measurement Range: 5-95%
Accuracy: ±3.0%RH(20~80%);±5.0%RH(80%)
Resolution: 0.1%
Response Time: Typical 4 seconds