Working voltage: DC5V-6V Main components: MQ-2 smoke sensor, LM358 integrated chip Function: Detecting liquefied gas, propane, hydrogen, natural gas, and other combustible gases. When flammable gas is detected, the red light is on, the buzzer sounds, and the relay acts. The three are activated at the same time. The probe needs to be warmed up for 1 minute, so it will work normally after 1 minute of power on. Module size: 36*59mm The module outputs a switching signal that can be controlled up to 220V 10A.
Package included:
10 x PCB board 10 x MQ2 sensor 10 x active buzzer 10 x 8P chip holder 10 x LM358 chip 10 x 5V relay 20 x KF3.96-2P terminal block 10 x 5MM green LED 20 x 5MM red LED 20 x 8050 triode 10 x 10K adjustable resistor horizontal 10 x 10 ohm resistor 40 x 2.2K resistor 60 x 10K resistor 10 x 104 monolithic capacitor
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