Module Capteur De Pollution DSM501A Chargeur there could be some slight

there could be some slight differences in the

And 5V 3A power supply is required for Raspberry Pi 4B

relay module

Standard 5 V relay

Module Capteur De Pollution DSM501A Chargeur there could be some slightWorking voltage: DC 5. 0 (plus and Minus 0. 5V) Output model: PWM Working current(Max): 90mA Humidity Range: Storage Conditions 0 99% RH Humidity Range: Working Conditions 0 95% RH Temperature Range: Storage Conditions 20 to 80 degree Temperature Range: Working Conditions 20 to 60 degree Stability time: Heater power on after about 1 minute. DSM501 dust sensor can sense that, tobacco smoke and pollen, house dust, such as heating automatic suction