Sensor Gas MQ4 MQ 4 MQ-4 Methane Metana Gas Alam Natural Gas

Isi dalam paket : 1x Modul MQ-4 MQ-4 Sensor Module MQ4 Methane Gas Metana CNG Arduino 1, using high-quality dual-panel design, with power indicator and TTL signal output instructions; 2, the switching signal having a DO (TTL) output and analog output AO ; 3, TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module ) 4, the higher the voltage , the concentration of the analog output voltage is higher. 5, for methane, natural gas has a good detection sensitivity, there are four screw holes for easy positioning, Product dimensions : 32 (L) * 20 (W) * 22 (H) 6, has a long life and reliable stability and rapid response and recovery characteristics Electrical properties: Input voltage : DC5V Power consumption ( current ): 150mA DO output : TTL digital 0 and 1 ( 0.1 and 5V) AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V Note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire.