HCHO-D001 Desktop Digital Air Quality Formaldehyde HCHO Thermo-hygrometer 0~5ppm Datalogger IAQ Meter Stand Alone Logger Taiwan Made Monitor

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HCHO-D001 Desktop Digital Air Quality Formaldehyde HCHO Thermo-hygrometer 0~5ppm Datalogger IAQ Meter Stand Alone Logger Taiwan Made Monitor

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This portable Formaldehyde (HCHO) Stand Alone Datalogger meter measure folmaldehyde concentration in air. Formaldehyde is one of the most commonly poisonous substances found in daily life and industry. This item also measures temperature and humidity with visible and audible alarms. Designed with electrochemical accurate HCHO sensor that measures up to 5ppm with datalogging memory up to 32,000 point.

It has 5 selectable start mode : (1)Schedule mode- select a date and time for the meter to start recording, (2) Real-time mode- after setting start mode meter will start logging, meter should be always connected with pc under this mode,(3) Key-start mode-press the button to start and stop logging,(4)Roll-over mode- continous datalogging, when the data is full it will cover the earliest memomy,(5) Immediate-log and measure instantly.


Wide Range of Application:

  • Indoor air quality inspection
  • Air quality research
  • Manufacturing
  • Pharmaceutical
  • Medical
  • Food
  • Cleaning
  • Synthetic resins
  • Textile treatment
  • Horticulture
  • Cosmetics and many more

GUIDE to Residential construction:

  • 0.03ppm - Average outdoor level
  • 0.10ppm - Recommend upper limit for residences by ASHRAE, ANSI, EPA, NIOSH
    • Recommended upper limit for STEL.
  • 0.40ppm - Recommended upper limit for manufactured homes
  • 0.50ppm - OSHA workplace limit
  • 0.75ppm - OSHA TWA limit
  • 0.80ppm - Level at which most people first detect odor
  • 2.0ppm - OSHA STEL limit




  • Wall mount/desktop Formaldehyde (HCHO or CH2O) data logger with smiley icons, easy to understand the dangerous level
  • Precision Temperature and relative humidity sensors.
  • Jumbo size LCD display with 4 data display - HCHO, Temp., RH%, date and time modes
  • HCHO ( 3 Formaldehyde) unit ppm. mg/m3 is selectable
  • TWA (Total weight average in 8hrs), STEL (Short time exposure limit in 15 minutes) calculation, alarm threshold value default at TWA limit according to NOISH
  • Visible and Audible alarm for high level concentration of HCHO
  • Green LED flashes stands for logging status
  • Maximum/Minimum recall since powered on.
  • Temperature unit C/F is selectable.
  • Allows Manual 0ppm calibration.
  • Stable Electrochemical type sensor
  • With 32,000 maximum data recording
  • Fashion shape ,popular for home appliance
  • Powered by AAA batteries or power Adaptor
  • Recommend to use adaptor for long time recording and data logging
  • Made in Taiwan



  • Parameters
    • HCHO: ppm or mg/m3
    • Temperature: °C or °F
    • Humidity: RH%
  • Measurement Range
    • HCHO: 0.00~5.00ppm (0.00~5.23 mg/m3 @25C, ambient pressure)
    • Temperature: 0.0~50.0°C (32.0~122.0°F)
    • Relative Humidity: 10.0~90.0%RH
  • Accuracy:
    • HCHO: Meet NIOSH criteria
    • Temperature: ±1°C / 2°F,
    • Relative Humidity: ±5% (10~90%RH)
  • Resolution
    • HCHO:0.01ppm
    • Temperature:1°C/°F
    • Relative Humidity: 1%RH
  • Audible alarm: Yes (adjustable)
  • Response Time : 5-8mins
  • Interface: USB
  • Unit conversion: ppm , mg/m3
  • LED
    • Green: Datalogging
    • Red: Exceeds threshold value alarm
  • Display TWA.STEL complies NOISH regulation
  • Memory: Store up to 32,000 point memory via USB interface
  • Color: Turquoise blue
  • Powered by 4 x AAA battery or AC adaptor (choose one from the available US / UK / AU / EUR)
  • Voltage: 110V or 240V
  • Dimension: 75 x 55 x 28mm
  • Weight: 60g


Set Includes:

  • 1 x Formaldehyde (HCHO) monitor and data logger
  • 1 x CD Software
  • 1 x Power Adaptor (choose one from the available US / UK / AU / EUR)
  • 4 x AAA battery
  • 1 x USB cable
  • English Instruction Manual
  • Standard Factory Package


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