The 3 mm infrared transmitter is very suitable for detecting infrared waves with a wavelength of 940 nm or detecting

The 3 mm infrared receiver is very suitable for detecting infrared waves with a wavelength of 940 nm or detecting

Description This is the temperature sensor based on chip DS18B20 consisting of a waterproof probe and long wire shape, which

MQ135 Features – Sensitive material MQ135 gas sensor is used in clean air low conductivity tin oxide (SnO2). When the