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Месяц | Минимальная цена | Макс. стоимость |
---|---|---|
Sep-19-2025 | 0.80 $* | 0.1 $* |
Aug-19-2025 | 0.52 $* | 0.20 $* |
Jul-19-2025 | 0.47 $* | 0.73 $* |
Jun-19-2025 | 0.4 $* | 0.36 $* |
May-19-2025 | 0.26 $* | 0.7 $* |
Apr-19-2025 | 0.52 $* | 0.38 $* |
Mar-19-2025 | 0.82 $* | 0.53 $* |
Feb-19-2025 | 0.6 $* | 0.1 $* |
Jan-19-2025 | 0.64 $* | 0.26 $* |
Carbon Dioxide | |
Sensing element | Non-Dispersive Infrared Detector (NDIR) |
CO2 measuring range | 0~2000ppm (default) 0~5000ppm (selected in the advanced setup) |
CO2 Accuracy @22℃(72℉) | ±50ppm + 3% of reading or ±75ppm (whichever is greater) |
Temperature dependence | 0.2% FS per℃ |
Stability | <2% of FS over life of sensor (15 year typical) |
Pressure dependence | 0.13% of reading per mm Hg |
Calibration | ABC Logic Self Calibration Algorithm |
Signal update | Every 2 seconds |
Warm-up time | 2 hours (first time) / 2 minutes (operation) |
General Data | |
Power supply | 24VAC/VDC or 100~230VAC(for relay outputs) |
Consumption | 2.5W avg., 5.5W max. |
Relay output | Up to three relay outputs, max.5A/ resistive load/each for control up to three devices. |
Analog output | Up to three 0~10VDC linear outputs or PID control outputs for CO2 & temperature & RH (or TVOC) |
Modbus communication (optional) | RS-485 with Modbus protocol, 19200bps rate, 15KV antistatic protection, independent base address. |
Color screen | 3-color TFT high definition screen displays measurements and setting /working information. |
Operation conditions | 0~50℃; 0~95%RH, non condensing |
Storage conditions | -10~60℃, 0~80%RH |
Net Weight | 280g |
Dimensions | 150mm(L)×90mm(W)×42mm(H) |
Installation | wall mounting with 65mm×65mm or 2”×4”wire box |
Housing and IP class | PC/ABS fireproof plastic material, protection class: IP30 |
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.
Данные ресурс не является интернет-магазином, а лишь содержит ссылки на международную торговую площадку Alibaba.com