Dection of Concentration:300-10000ppm

Input voltage: DC5V

Power consumption (current): 150mA

DO output: TTL digital quantities 0 and 1 (0.1 and 5V)

AO output: 0.1-0.3V (relatively non-polluting), the highest concentration voltage is about 4V

Using the chip: AT89S52

Crystal: 11.0592MHZ

Baud rate: 9600

• It adopts high quality double panel design with power indication and TTL signal output indication;
• It has DO switch signal (TTL) output and AO analog signal output;
• The TTL output valid signal is low. (When the output is low, the signal light is on, it can be directly connected to the MCU or relay module)
• The voltage of the analog output, the higher the concentration, the higher the voltage.
• It has good sensitivity to gas and natural gas detection.
• there are four screw holes for easy positioning;
• product dimensions: 32 (L) * 20 (W) * 22 (H)
• has a long service life and reliable stability
• fast response recovery characteristics