Details

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TM-802 Formaldehyde Meter

 

• Measure the formaldehyde density, temperature, humidity in the environment simultaneously
• Monitor the occupational safety in TWA (8 hours) and STEL (15 min)
• Use the high-precision electrochemical sensor for formaldehyde measurement

 

Application

• Backlit LCD displays simultaneously formaldehyde (HCHO), temperature, humidity, easy to monitor.
• Occupational safety monitoring shows TWA (8 hours) and STEL (15 mins).
• Use high-precision electrochemical sensors.
• The maximum / minimum / average hold.
• Stores 200 records manually.
• Data hold.
• Formaldehyde maximum and minimum alarm value setting.

FORMALDEHYDE HAZARDS

Formaldehyde concentration	Human response	International standard
0.03ppm	General outdoor environment value
0.08 ppm	Tasteless, no sensation for the human
0.1 ppm	Standard recommended value	Limiting value of ASHRAE, ANSI, EPA, NIOSH for STEL residence, the recommended value from Taiwan Environmental Protection Administration.
0.15~0.25 ppm	Breathing for a long time may easily  cause the allergies on children’s skin.
0.25~0.3 ppm	It may cause the symptoms of asthma, allergies, cough , etc
0.5 ppm	It may cause abnormal immune function and oncogenic risk.	Limiting value of OSHA for workplace
0.75 ppm	It may cause Chromosomal abnormalities  and affecting fertility, and cause cancer easily.	Limiting value of OSHA and TWA for workplace
>2.0ppm	It may cause cancer and chronic respiratory disease.	Limiting value of OSHA and TWA for workplace

Features

• Easy to monitor: LCD can display the three values of formaldehyde, temperature and humidity at the same time.
• Low battery indication
• The manual recording can be up to 200 readings
• Back light display.
• The maximum / minimum / average hold.
• Formaldehyde maximum and minimum alarm value setting.
• Monitoring and displaying the occupational environmental safety for TWA (8 hours), STEL (15 minutes)
• Battery life is about 75 hours under continuous use

 

Specifications

• Dimension: 191x73x35mm (LxWxH)
• Weight: 250g(without the batteries’ weight)

 
Electrical specifications 
Accuracy of the environmental conditions: 23℃ ± 5℃ and RH <80%

	Formaldehyde	Humidity	Temperature
Measurement   Range	0.00-5.00PPM (mg/m3)	5.0%~95.0%RH	-20 to 50℃ (-4 to 122oF)
Resolution	0.01ppm	0.1%RH	0.1℃(0.1°F)
Accuracy	±5% of reading +0.03ppm (baseline shift)	±5.0%RH (20 to 80%) ±8.0%RH (<20%,>80%)	±1.0℃(±1.8°F)
Response  time (T90)	30 seconds