Внешний датчик CO2 3 в 1
- Категория: Газоанализаторы >>>
- Поставщик: Tongdy,Sensing,Technology,Corporation
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Описание и отзывы
Трекер стоимости
| Месяц | Минимальная цена | Макс. стоимость |
|---|---|---|
| Sep-19-2025 | 0.65 $* | 0.18 $* |
| Aug-19-2025 | 0.90 $* | 0.62 $* |
| Jul-19-2025 | 0.72 $* | 0.30 $* |
| Jun-19-2025 | 0.35 $* | 0.39 $* |
| May-19-2025 | 0.74 $* | 0.30 $* |
| Apr-19-2025 | 0.43 $* | 0.93 $* |
| Mar-19-2025 | 0.87 $* | 0.63 $* |
| Feb-19-2025 | 0.65 $* | 0.95 $* |
| Jan-19-2025 | 0.20 $* | 0.50 $* |
Характеристики
Monitoring parameters | CO2 | Temperature | Relative humidity | |||
Sensing element | Non-Dispersive Infrared Detector (NDIR) | Digital combined temperature and humidity sensor | ||||
Measuring range | 0~2000ppm(default) 0~5000ppm (selectable in the order) | 0℃~50℃(32℉~122℉) (default) | 0~100%RH | |||
Display Resolution | 1ppm | 0.1℃ | 0.1%RH | |||
Accuracy@25℃(77℉) | ±60ppm + 3% of reading | ±0.5℃ (0℃~50℃) | ±3%RH (20%-80%RH) | |||
Life time | 15 years (normal) | 10 years | ||||
Calibration cycle | ABC Logic Self Calibration | —— | —— | |||
Response Time | <2 minutes for 90% change | <10 seconds to reach 63% | ||||
Warm up time | 2 hours (first time) 2 minutes (operation) | |||||
Electrical Characteristics | ||||||
Power supply | 24VAC/VDC | |||||
Consumption | 3.5 W max. ; 2.5 W avg. | |||||
Analog Outputs | Two or three analog outputs 0~10VDC(default) or 4~20mA (selectable by jumpers) 0~5VDC (selected at place the order) Can be set the inverse proportion linear output by Modbus | |||||
Modbus RS485 interface (optional) | RS-485 with Modbus protocol, 19200bps rate, 15KV antistatic protection, independent base address | |||||
Conditions of Using and Installation | ||||||
Operation conditions | 0~50℃(32~122℉); 0~95%RH, non condensing | |||||
Storage conditions | 0~50℃(32~122℉)/ 5~80%RH | |||||
Weight | 320g | |||||
Installation | Fixed on the air duct with 100mm installation hole size | |||||
IP class of the housing | IP50 for no LCD IP40 for with LCD | |||||
Standard | CE-Approval | |||||
Tongdy Sensing, located in Beijing Zhongguancun Environmental Science and Technology Park, which is the leader of air quality detection.Tongdy has been always focusing on its strong technology development and design capabilities, constantly providing high quality products for air quality monitoring and control.
Tongdy has its own R&D office building and massive investments in R&D facilities like aging and testing laboratories and professional calibration chambers provide the necessary conditions for its continuous R&D and stable development. Tongdy’s products include: Carbon dioxide, carbon monoxide, ozone, TVOC, PM2.5/PM10, formaldehyde and other gas monitors/controllers; indoor air quality/in-duct air quality/outdoor air environment monitors, data collection and analysis.
These products have been widely used in thousands of projects in Europe, North America, the Gulf region and the Asia-Pacific region for over 15 years, and accumulating long-term application data and experience in different environment.
Tongdy has excellent reputation and popularity in the HVAC and green building industries.
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