Home > Products > Desktop CO2 monitor > ZG106  
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  ZG106 SERIES - ZG106 / ZG106R / ZG106A-M  
ZG106 / ZG106R / ZG106A-M
ZG106 / ZG106A-M
  1. Power Button
  8. Function Label
  2 .Enter Button
  9 .Gas Entry Hole
  3. Down Button
  10. Gas Entry Hole
  4. Up Button
  11. RJ45 socket
  5. Mode Button
  12. Housing Stand
  6. LCD Display
  13. Battery Cover
  7. LED Light
  14. AA Battery * 4
General Introduction
Indoor Air Quality (IAQ) is measure for the quality of air in interiors, the comfortable indoor environmental quality can make people feel fresh, work efficiency and good for the health. The CO2 concentration is the important factor of good indoor air quality. People breath in oxygen and breath out CO2, nowadays people often close the windows to avoid noise and enjoy the comfort living and working environment provided by air-conditioning systems, which results in the fact that the indoor concentration of CO2 is far higher than outdoor average. With the high CO2 concentration and non- proper ventilation, people will feel headaches, dull, drowsiness, lose of concentration and correspond to the high levels of dust, chemicals and bacteria in the air.
Features & Display Features and Modes
Ultra low cost CO2 Monitor achieved by New IR-SoC Technology
It uses Dual Beam NDIR technology to improve the long term stability
Portable, accurate handheld CO2 Monitor
The Alarm mode will sound at 1000 PPM or adjust the alarm level
Max/Min mode
Mode Function
  There are several Modes which we can adjust the setting parameters. These modes are Alti Mode,Alarm Mode, Outside Mode, Ucal Mode, Datalogger Mode, MaxMin Mode and rcFS Mode in sequence.
  Compensate the pressure changes with appropriate altitude of location when measure.

Alarm while CO2 concentration exceed one threshold, which can be modified.
The Alarm sound can be turn on/off while the “speaker Icon” flash.

  Modify the outside CO2 concentration,for defining the ventilation rate.
  Calibrate the sensor while the reading deviates from the actual CO2 concentration.
  Show the past CO2 and Temperature records in the past 24 hours.
  Show the Max and Min CO2 reading before being cleared or powered off after Power On.
  Recover the factory setting, if the device cannot show accurate reading.
(ZG106R Only)
  The sound alarm can be setting on/off under Mute Mode.
  Show the past CO2, temperature and RH records in the past 24 hours.
Operation Instructions
  Press Power button( 1) to turn on the device after placing 4 AA batteries into the battery holder or AC adapter plug into the DC socket . Once power on, CO2 reading will show after 15 seconds of warm up.
  It lasts approximately 1min before WARMUP disappears; all the functions will not response during warm up.
  After warm up, the device will stabilize and display the normal CO2 Reading (Upper Display)- remain visible at all times.
Temp and
Ventilation Rates
(Lower Display)

The Up/Down button( 4/3 ) allows you to scroll through the Temperature and Ventilation Modes.  When pressing the Up botton,the lower display will go through the following sequence: TempºC -> TempºF -> Vent Rate lps -> Vent Rate cfm/p

  Note: lps refers to Liter Per Second Per Person; cfm/p refers to Cubic Feet Per Minute 
          Per Person
  Operation of Mode Adjustment
1.ALTI Mode: 
  1.1. Press the Mode Button( 5 ), ALTI flashs
  1.2. Press Mode( 5 ) to alter between m(meters) and ft(feet)
  1.3. Press Up/Down ( 4 /3 ) to adjust the altitude (Step=100m/500ft)
  1.4. Press the Enter Button( 2 ), save or leave the ALTI Mode, return to UserMode
2.ALARM Mode
  2.1. Press the Mode button(5 ), until ALARM flashs
  2.2. Press Enter Button( 2 ), Show ALARM ,"speaker icon" flashs
          Press Up/Down( 4/3 ) to turn on/off the ALARM
  2.3. Press the Enter( 2 ), save the setting and return to UserMode.
  Note: Ventilation Rate
  Ventilate rate represents how much air is introduced into the indoor space from the
  outside. Low values indicate low ventilation rates and potentially poor air quality.
  High levels indicate excessive ventilation and potential excessive energy usage.

To obtain an accurate measurement, reading should be taken 2~3 hours after

  occupancy has stabilized in a space or at a peak in daily CO2 concentrations. In indoor
  air quality control, CO2 value is an indicator of ventilation rate. 400ppm (Parts Per
  Million) is the default CO2 concentration outside (according to ASHRAE: American
  Society of Heating, Refrigeration and Air conditioning Engineers)
  3.1. Press the Mode button( 5 ) ,until OUTSIDE flashs
  3.2. Press Enter( 2 ), show OUTSIDE, CO2 and PPM flash
          Press Up/Down( 4/3 ) to adjust the reading 
  3.3. Press the Enter( 2 ), save the setting and return to UserMode
          After modification, the VENT Rate will change
4. CALI Mode
  The CO2 monitor has been calibrated in the factory and should recalibrate every 12
  months with a specified concentration of CO2.Sensor drift usually occurs in linearity.
  Please follow below steps.
  4.1. If battery icon shows low power, please replace new batteries or use AC adapter

4.2. Press the Mode button( 5 ), until CALI flashs

  4.3. Press Enter( 2 ), CALI shows on display
  4.4. Adjust the lower display to ambient CO2 value by Up/Down ( 4/3 )Button.
  4.5. Press Mode button ( 5 ) more than 10 sec., CALIBRATING flashs.
          Calibration will be done after 10 min and LCD will appear "PASS".If LCD appear
           "FAIL", please calibrate once again.
  4.6. Press Enter( 2 ), return to UserMode
  ZG106 has a built-in datalogger , which can provide users the past CO2 and
  temperature readings within the past 24 hours.
  5.1. Press the Mode button( 5 ), until DATALOGGER flashs
  5.2. Press Enter( 2 ), CO2 and Temperature show up

        Press Up/Down( 4/3 ) to page up/down the reading . 

  5.3. Press the Enter( 2 ), return to UserMode
6. MaxMin Mode
  ZG106 has a built-in MaxMin mode, which can provide users the Maximum and
  Minimum CO2 readings since the device has last been turned on.
  6.1. Press the Mode button( 5 ), until MAX MIN flashs
  6.2. Press Enter button( 2 ), MAX and MIN CO2 reading alternatively shows.

6.3. "CLR" will flash if press Up/Down( 4/3 )

          Press Enter( 2 ),to CLEAR the MAX and MIN record  
  6.4. Press Mode or Enter( 5 ), return to UserMode
7. rcFSMode
  If user set or calibrated the sensor wrongly, you can recover the factory setting
  7.1. Press the Mode button( 5 ), until rcFS flashs on the lower display
  7.2. Press Enter( 2 ), "no" shows on the upper display
  7.3. Press Up/Dow( 4/3 ), "no" change to "yes"

        Press Enter( 2 ), Factory Setting will reload, return to UserMode;

  7.4. Press Mode( 5 ), leave rcFS Mode, return to UserMode
  Method - Dual Beam NDIR
  Display - LCD
  Independent CO2 and Temperature readings.
  Calculates and Displays Ventilation Rates

Sample Method - Diffusion or flow through (50 ~200 ml/min)

Performance - CO2
  ZG106 ZG106R ZG106A-M
Measurement Range 0~3,000ppm 0~10,000ppm
1ppm at 0~1,000ppm;
5ppm at 1,001~2,000ppm;
10ppm at 2,001~3,000ppm
1ppm at
5ppm at
10ppm at
20ppm at 4,001~6,000ppm;
40ppm at 6,001~10,000ppm;
  ±50 ppm or ±5% of
  0~2000ppm ±70ppm
or ±5% of reading,
  whichever is greater ;
  over 2000ppm: ±7%
  ±50 ppm or ±5% of
  ±20 ppm
Temperature Dependence
  Typ. ±0.1% of reading per °C or ±2 ppm per°C,

whichever is greater, refer­enced to 25°C.

Pressure Dependence
  0.13% of reading per mm Hg (Corrected via user input for altitude)
Response Time
  <2min for 63% of step change
  About 2min for 63% of step change
Warm-Up Time
  <60 seconds at 22°C

Temperature Specification

Temperature Range
  0°C to 50°C (32°F to 122°F) display
Display Resolution
  0.1°C (0.1°F)
Display Options
  °C / °F
  ±1°C (±2°F)  When the fan blows to the device directly, the accuracy of temperature is + / -1.5 degC .
Response time
  20-30 minutes (case must equilibrate with environment)

RH Specification
(ZG106R only)

Measurement Range
  20%-90% RH
Display Resolution
Response time
  <5 min for 63% of step change
  OC: Normally Low,100mA max. @ 24VDC. Adjustable setpoint, factory setting is
  1000ppm,hysteresis is 50ppm
Power Supply
  Two power supply types
  Battery type: Alkaline, AA* 4 (80 hours)
  Power Requirement 160 mA Peak, 15 mA average from 6V
  ZG106& ZG106A-M: External: 6 VDC from external AC/DC adapter which is included in
  package(Use specified AC adapter only)
  ZG106R: External:100 ~ 240 VAC 50 / 60 Hz  6 VDC from external AC/DC adapter which
  is included in package (Use specified AC adapter only)
  The device can be supplied either by batteries or an AC adapter.
  DO NOT install batteries and plug in an AC adapter at the same time.
General Operating Conditions
  Operating Temperature: 32-122°F (0-50°C) 0-95% RH, non-condensing
  Storage Temperature: -4 to 140°F (-20 to 60°C)
  166 × 81 × 26 mm (0.96×3.19×6.50 inch)  
Weight (including batteries):
  273.6 grams(9.65 oz)
  The device incorporates visual diagnostic messages as follows:
  Error 3, it is displayed when the temperature being measured is outside of the measurementrange.
  Error 5-6, it is necessary to reset the thermometer. To reset it, turn the instrument off, remove the battery and wait for a minimum of one minute, reinsert the battery and turn on. If the error message remains please contact the Service Department for further assistance.
Kinds of Adapters for your option
(for European ,
GermanItaly )
(for British,
BS1363 )
(for Australia
New Zealand)
(for American ,
Install: Uninstall:
Available Packages
  Dimensions: 166*81*26mm
  Weight (including batteries): 279.5 g
  Power Adaptor Weight :
  U.K Type: 102.1g
  EU Type.: 98.1g
  U.S Type: 90.1g
  AU Type: 97.9g
  One Set Included:
1 CO2 Monitor
4 AA Batteries
1 Power Adaptor
1 User Manual
1 White Box
1 Anti-ESD PE Bag (Pink)
1 PE Bag ( Package Power
  One Carton Included:
Q'ty: 20pcs PaperBoxes
White Box Size: 204*204*77mm
Carton Size:
    2.95 Cube ft
U.K Type Power Adaptor: 11.7 kgs
EU Type Power Adaptor: 11.8 kgs
U.S Type Power Adaptor: 11.6 kgs
AU Type Power Adaptor: 11.8 kgs
U.K Type Power Adaptor: 13.6 kgs
EU Type Power Adaptor: 13.7 kgs
U.S Type Power Adaptor: 13.5 kgs
AU Type Power Adaptor: 13.7 kgs