SIRIUS
Desktop Indoor Air Quality (IAQ) CO2 Monitor
(Model No.: ST- 502)
Quality Product ~ Made in Taiwan

Product Description:

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 1/4”tripod nut).

Application:

Building HVAC Monitoring.
Indoor Air Quality Survey.

General Specification:

Read value display: Triple-display LCD monitor
Display unit: ℃/℉, PPM, %RH
Maximum value/Minimum value
Alarm function
Memory can store a maximum of 17,000 data entries.
Record time interval: 5 seconds/10 seconds/1 minute/5 minutes/10 minutes/30 minutes/1 hour/2 hours
Operating power consumption: 2.4W
Power adaptor AC 100V~240V to DC 12V/1.0A.
Internal backup battery to maintain date/time setting.
Operation condition: 0-50˚C (32-122˚F), 5-95%RH(non-condensing).
Storage temperature & Humidity: -10~60˚C (14~140˚F) ≦70%RH.
Supported operating systemsL XP/Windows 7/Windows 8.1/Windows 10
Weight: Approximately 190 grams
Dimensions: 89 x 62 x 128 mm (L x W x H)

Technical Specifications:

Carbon Dioxide
- Type: Non-dispersiveinfra-red (NDIR)
- Measurement Ranges: 0 - 9999 PPM
- 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 Ranges: 0℃ - 50℃ / 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 Ranges: 5 - 95% RH
- Accuracy: ±3.0%RH (20~80%); ±5.0%RH (80%)
- Resolution: 0.1%
- Response Time: Typical 4 seconds