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 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 |
