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Top Programmable VOC Controller  /  VOC Detector / VOC Sensor For BAS Or HVAC

Tongdy Sensing Technology Corporation
Tongdy Sensing Technology Corporation
City: Beijing
Province/State: Beijing
Country/Region: China
Tel: 86-10-59738930
Contact Person:
Mr Michael Zhang

Top Programmable VOC Controller  /  VOC Detector / VOC Sensor For BAS Or HVAC

Brand Name : Tongdy
Model Number : F2000IAQ-VOC
Certification : CE/ISO9001
Place of Origin : China
MOQ : 10pc
Price : Based on order quantity
Payment Terms : 100% prepay by T/T or Paypal
Supply Ability : 2000pcs per month
Delivery Time : Based on order quantity
Packaging Details : Carton
Mounting Type : Wall mount
Sensor : Japanese semiconductor gas sensor
Output : Analog or relay or Modbus RS 485
Power supply : 24VAC
Product name : VOC detector
VOC’s measuring range : 1~30ppm
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Gas detected

VOCs ( toluene emitted from wood finishing and construction products);

Cigarette smoke( hydrogen, carbon monoxide);

ammonia and H2S, alcohol, natural gas and smell by people’s body.

Sensing element

Semiconductor mix gas sensor

Power supply



2.8 W

Response Time

<5 minutes for 90% step change

Warm up time

48 hours (first time), 1 hour (normal operation)

VOC’s measuring range


Display resolution


Temperature & Humidity Sensor


Relative Humidity

Sensing element


Capacitive sensor

Measuring range


0 -95%RH


±0.5℃ (25℃, 40%-60%RH)

±4.5%RH (25℃, 40%-60%RH)

Display resolution




±0.5℃per year

±1%RH per year

Analog output

0~10VDC linear output or PID control output, programmable selection

Output resolution


Relay output

Two dry contact outputs with programmable selection to control VOC, temperature, humidity. Rated switching current 2A(220VAC/30VDC), resistance load

Modbus interface

Modbus RS-485 protocol. 19200bps(default)

15KV antistatic protection, independent base address, 31 max network nodes

Operation temperature


Operation humidity

0~95%RH,non condensing

Storage conditions


Net Weight




Installment standard

65mm×65mm or 2”×4” wire box

Interface connections (Max.)

10 terminals

Wiring standard

Wire section area <1.5mm2

Quality System

ISO 9001

Programming and selection

Via DIP switch and external push-buttons

Outputs (max.)

1~2 dry contact relay outputs, 1X0~10V output


1. Real time monitor ambiance air quality with a mix gas sensor

2. Japanese semiconductor gas sensor with 5~7 years long life

3. Monitor temperature and relative humidity

4. LCD display air quality as well as temperature and humidity, fan status etc. Makes reading and operating easy and accurate.

5. user-friendly setting buttons

6. Temperature and humidity compensation makes the IAQ measurement more consistent in different environments

7. Modbus RS-485 communication interface optional, 15KV antistatic protection, independent base address setting

8. Up to 1x0~10V analog output and 2xrelay dry-contact outputs

9. Two alternatives for the analog output : linearized over full range output or PID control output.

10. The relays can be selected to control IAQ , temperature or humidity (programmable setting)

11. Timer of turning-off function for the ventilator device from 0.5 to 12 hours.

12. Low power consumption


F2000IAQ-VOC is specially designed to detect indoor air quality in offices and home environments. Its internal gas sensor has high sensitivity not only to VOC's such as toluene emitted from wood finishing and construction products but also to other air contaminants which are emitted by cigarette smoke, ammonia and H2S. It’s also sensitive to carbon monoxide, alcohol, natural gas and smell from people’s body. So it is more suitable for monitoring IAQ than other sensors which one is only for one kind of gas.

1. Ambiance air quality detection and alert

2. Ventilation control

3. Air quality monitors

4. Odor monitors.

LCD & Buttons

Wiring Diagram

Dimention & Mounting


Product Tags:

voc monitors


voc gas detector

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