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    • China Supplier Voc Transmitter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy

    China Supplier Voc Transmitter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy Featured Image
    • China Supplier Voc Transmitter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy
    • China Supplier Voc Transmitter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy

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    Our mission should be to turn out to be an innovative supplier of high-tech digital and communication devices by furnishing benefit added design and style, world-class manufacturing, and repair capabilities for , , , Welcoming interested businesses to cooperate with us, we look forward to owning the opportunity of working with companies around the planet for joint expansion and mutual results.
    China Supplier Voc Transmitter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy Detail:

    ♦ Real time monitoring room carbon dioxide

    ♦ NDIR infrared CO2 sensor inside with special Self Calibration. It makes the CO2 measurement more accurate and more reliable.

    ♦ More than 10 years lifetime of CO2 sensor

    ♦ Temperature and humidity monitoring

    ♦ Three-color (Green/Yellow/ Red) LCD backlight indicates ventilation level -optimal/moderate/poor based on the CO2 measurements

    ♦ Buzzer alarm available/disable selected

    ♦ Optional display 24h average and max. CO2

    ♦ Provide optional 1xrelay output to control a ventilator

    ♦ Provide optional Modbus RS485 communication

    ♦ Touch button for easy operation

    ♦ 24VAC/VDC or 100~240V or USB 5V power supply

    ♦ wall mounting or desktop placement available

    ♦ High quality with the excellent performance, best choice for schools and offices

    ♦ CE-approval

    Power supply 100~240VAC or 24VAC/VDC wire connecting USB 5V (>1A for USB adaptor) 24V with an adaptor
    Consumption 3.5 W max. ; 2.5 W avg
    Gas detected Carbon Dioxide (CO2)
    Sensing element Non-Dispersive Infrared Detector (NDIR)
    Accuracy@25℃(77℉) ±50ppm + 3% of reading
    Stability <2% of FS over life of sensor (15 yr typical)
    Calibration interval ABC Logic Self Calibration Algorithm
    CO2 sensor life 15 years
    Response Time <2 minutes for 90% step change
    Signal update Every 2 seconds
    Warm up time <3 minutes (operation)
    CO2 measuring range 0～5,000ppm
    CO2 Display resolution 1ppm
    3-color backlight for CO2 range Green : <1000ppm Yellow: 1001~1400ppm Red: >1400ppm
    LCD Display Real time CO2, Temp &RH Extra 24h average/max/min CO2 (optional)
    Temperature measuring range -20～60℃(-4～140℉)
    Humidity measuring range 0～99%RH
    Relay output (optional) One relay output with rated switching current: 3A, resistance load
    Operation conditions -20~60℃(32~122℉); 0~95%RH, non condensing
    Storage conditions 0~50℃(14~140℉), 5~70%RH
    Dimensions/ Weight 130mm(H)×85mm(W)×36.5mm(D) / 200g
    Housing and IP class PC/ABS fireproof plastic material, protection class: IP30
    Installation Wall mounting (65mm×65mm or 2”×4”wire box) Desktop placement
    Standard CE-Approval
    Product detail pictures:

    China Supplier Voc Transmitter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy detail pictures

    China Supplier Voc Transmitter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy detail pictures

    Related Product Guide:
    "Based on domestic market and expand overseas business" is our development strategy for China Supplier Voc Transmitter - Popular carbon dioxide monitor in wall mounting or desktop for schools and offices – Tongdy , The product will supply to all over the world, such as: panama, Uruguay, Johannesburg, Our products are widely sold to Europe, USA, Russia, UK, France, Australia, Middle East, South America, Africa, and Southeast Asia, etc. Our products are highly recognized by our customers from all around the world. And our company is committed to continually improving effectiveness of our management system to maximize customer satisfaction. We sincerely hope to make progress with our customers and create a win-win future together. Welcome to join us for business!
    • The company can think what our think, the urgency of urgency to act in the interests of our position, can be said this is a responsible company, we had a happy cooperation!
    5 Stars By Marcia from Georgia - 2018.09.21 11:44
    As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
    5 Stars By Kitty from Porto - 2017.09.22 11:32
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