- Has a signal output LED indicates.
- The dual signal output (analog output, and TTL level output).
- TTL output valid signal is low; (low level output signal light, which can be accessed microcontrolle r IO port).
- Analog output increases with the concentration, the higher the concentration the higher the voltage.
- Aldehydes, alcohols, ketones, aromatic compounds with high sensitivity.
- Has a long life and reliable stability.
- Rapid response recovery characteristics.
- With mounting holes to facilitate fixed installation.
- Size(LxWxH): 35mm x25mm x30mm
- Main Chip: LM393, MQ138 formaldehyde sensor
- Working Voltage: DC 5V