Intelligent formaldehyde(CH₂O) gas alarm produced by our CMC factory:
Industrial Formaldehyde (CH₂O) gas detector – Technical specifications:
| Gas Detected | Formaldehyde (CH₂O) |
| Measuring Range | 0–50 ppm / customizable |
| Resolution | 0.1 ppm |
| Accuracy | ≤ ±3% F.S. |
| Response Time | ≤ 30 seconds |
| Detection Method | Electrochemical sensor |
| Power Supply | DC 24V |
| Output Signal | 4–20mA / RS485 Modbus / Relay (optional) |
| Display | LED digital tube or LCD screen (optional) |
| Alarm Mode | Sound & light alarm, threshold adjustable |
| Working Temp. | -20℃ ~ +50℃ |
| Working Humidity | 0–95% RH (non-condensing) |
| Protection Level | IP66 |
| Installation | Wall-mounted / Pipeline / Customized |
| Dimensions | 180 × 150 × 90 mm |
| Weight | About 1.5 kg |
Formaldehyde(CH₂O) gas alarm working process:
Formaldehyde Gas (CH₂O) Leak → Sensor Detection → Signal Processing → Alarm Activation (Sound & Light) → Data Output (4-20mA / RS485) → Ventilation / Control System Linkage
You can watch a video of the gas alarm working by clicking this link: www.youtube.com/shorts/XOOSAmTe__M
Formaldehyde(CH₂O) gas monitor installation:
Installation Location: Formaldehyde (CH₂O) gas has a slightly lighter density than air, but close to that of air, so the recommended installation height is 1–1.5 meters.
Mounting Method: Wall-mount or duct-mount, securely fixed.
Power Supply and Wiring: 24V DC, 4–20mA output/RS485/relay. Wiring should be done according to the user manual.
Calibration and Testing: Zero calibration after power-on and warm-up, and recalibrate regularly.
Precautions: Avoid corrosive gases, keep the probe clean, and do not obstruct the probe.
The fixed formaldehyde gas detector is mainly used to monitor the concentration of formaldehyde (CH₂O) in the air, but depending on the sensor type, it can also detect other common toxic or combustible gases such as chlorine (Cl₂), ammonia (NH₃), sulfur dioxide (SO₂), hydrogen (H₂), methane (CH₄), and hydrogen chloride (HCl), providing real-time safety monitoring and early warning in indoor or industrial environments.
