Tongdy Control Technology Co., Ltd.

Products List
CO2 Monitor / Controller

CO2 Monitor / Controller

NDIR infrared CO2 module inside Microprocessor control 3X 0~10V analog outputs or 3X relay dry-contact outputs LCD display   Gas detectedCarbon Dioxide (CO2)Sensing elementNon-Dispersive Infrared Detector (NDIR)Temperature sensorNTCHumidity sensorHS series capacitive...
CO Transmitter

CO Transmitter

real-time detection high accuracy humidity and temperature detection 0~10VDC/4~20mA output Modbus RS485 communication SensorsGas SensorElectrochemical carbon monoxide sensorSensor lifetimeUp to 5 years, replaceableWarm up time1hour (first time)   Response TimeWithin 60...
CO2+VOC Monitor and Alarm

CO2+VOC Monitor and Alarm

Monitoring CO2 and VOC (mix gases) Temperature and humidity detection and display 1xon/off output LCD display Monitoring parametersCO2VOCTemperatureRelative humiditySensing elementNon-Dispersive Infrared Detector (NDIR)Semiconductor mix gases sensorDigital combined temperature and...
CO2 Sensor and Detector

CO2 Sensor and Detector

1.Real time CO2 detection,monitor & alarm 2.Provide 1xon/off output to control a ventilator 3.Wall mounting and desktop place   Gas detectedCarbon Dioxide (CO2)Sensing elementNon-Dispersive Infrared Detector (NDIR)Accuracy@25(77)±50ppm + 3% of readingStability<2% of...
CO2 Monitor/Detector

CO2 Monitor/Detector

1 CO2 indicator and alarm 2 Real-time detect and display room CO2 and temperature 3 3 LED indicator lights  Gas detectedCarbon Dioxide (CO2)Sensing elementNon-Depressive Infrared Detector (NDIR)Temperature sensorNTCTemperature correctionSelf compensationCO2 NDIR life15...
Ozone Monitor/ Controller

Ozone Monitor/ Controller

Replaceable Electro chemical sensor, high accuracy superior quality at attractive price 1 Real time detect ambiance ozone gas level 2 Detect temperature and humidity at the same time3 Wall mounted with LCD display4 LCD can display ozone, temperature and humidity, also controlled...
CO2 Monitor/Alarm

CO2 Monitor/Alarm

Real time detect CO2 concentration,Day/Night mode 1 Design for real time monitoring room carbon dioxide level 2 NDIR infrared CO2 sensor inside with special Self Calibration System. It makes the CO2 measurement more accurate and more reliable in use.3 More than 10 years lifetime of...
CO2 Monitor and Alarm

CO2 Monitor and Alarm

LCD display with three color buzzer alarm and backlight colors switchover 1X relay output touch button Gas detectedCarbon Dioxide (CO2)Sensing elementNon-Dispersive Infrared Detector (NDIR)Accuracy@25°C(77°F)±50ppm + 3% of readingStability<2% of FS over life of...
CO2 Montior with USB Data Logger

CO2 Montior with USB Data Logger

0~10VDC output/on/off relay output data logger inside data saved by USB disk   Gas detectedCarbon Dioxide (CO2)Sensing elementNon-Depressive Infrared Detector (NDIR)CO2 NDIR life15 yearsAccuracy@25°C(77°F)±40ppm + 3% of readingStability<2% of FS over life...
BacNet Thermostat for VAV Terminal

BacNet Thermostat for VAV Terminal

Room thermostat for BACnet MS/TP networks 1x0~10 VDC output or 2x0~10VDC outputs Up to two-stage electric aux. heating 2   24 VAC±20%  50/60HZElectrical rating2 Amp load per terminalSensorNTC 5KTemperature control range5-60   (41-95)Accuracy±0.5...



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