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Specifications
SKU: Tenmars ST-501 Indoor Air Quality (IAQ) Monitor
ST-501 Indoor Air Quality (IAQ) Monitor
It is an excellent indoor air quality (IAQ) instrument measuring
the carbon dioxide (CO2), Relative Humidity (RH) and Temperature.
Application
- Building HVAC monitoring.
- Indoor air quality survey.
- Locate the presence of combustion fumes from vehicles and appliances.
Features
- 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.
Power Supply Battery 4 AA batteries Battery operation 24 hours External power supply 5V~6V VDC with 0.5A
Specifications
- 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: ± 60ppm, ± 5% of reading (0~2000 ppm)
- Display Resolution - ±1 ppm
- Datalogging:17,000 records,
- Fast USB download (50,000 records in less than 10 seconds.)
Electrical specifications
| CO2 Sensor | |
| Type | Non-dispersive infra-red (NDIR) |
| Measurement range |
0~9999ppm |
| Accuracy | ±60ppm or ±5% of reading |
| Resolution | ±1ppm |
| Response time | Reaches 90% in approximately 2 minutes |
| General | |
| Operation condition | 32°F~122°F (0°C~50°C) |
| 0~95%,RH,non-condensing | |
| Storage temperature | -4°F~140°F (-20°C~60°C) |
| Relative Humidity Sensor | |
| Type | CMOS Sensor |
| Measurement range | 1%~99% |
| Accuracy | ±3.0%RH (20%~80%) at 25°C ±5.0%RH (<20%,>80%) at 25°C |
| Resolution | 0.1% |
| Response time | 8 seconds |
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