Details

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ST-502 Desktop Indoor Air Quality (IAQ) Monitor

 
It is a desktop indoor air quality monitor that can measure carbon dioxide, relative humidity, air temperature, and ventilation rate. 
 

Application

• Building HVAC monitoring.
• Indoor air quality survey.

 

Features

• Non-Dispersive Infrared (NDIR) CO₂ sensor ensures long term stability and durability.
• 4 Measurements-CO₂/CO₂ Ventilation Rate/Temperature/Humidity.
• Large display.
• Easy -to-use PC software for parameter settings and analysis.
• Fast USB download
• CO₂/Temperature/Humidity high,low alarm setting.
• Set on the table or wall-Mounted (use ¼”tripod nut).

 

Specifications

• 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.
• Dimension: 89 X 62 X 128mm (LxWxH)
• Weight:Approximately 190 grams

 
Electrical specifications 
Accurate ambient temperature range: 18°C (64°F) ~ 28°C (82°F)

Carbon dioxide
Sensor Type	Non-Dispersive InfraRed  (NDIR)
Measurement Range	0~9999ppm
Accuracy	±5% read value or   ±75ppm.(0-2000ppm)
Resolution	±1ppm
Response Time	Reaches 90%  in approximately 2 minutes

 

Temperature
Sensor Type	T hermistor
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	Approximately 1 second

 

Relative Humidity
Sensor Type	Capacitive
Measurement Range	5-95%
Accuracy	±3.0%RH(20~80%) @ 25°C   ±5.0%RH(<20%,>80%)   @ 25°C
Resolution	0.1%
Response Time	Approximately 4 seconds