Ultrasonic sensors overcome many of the weaknesses of IR sensors – they provide distance measurement regardless of color and lighting

Infrared Receiver Introduction VS838 includes high-speed PIN photodiode with high sensitivity and low power consumption, high gain before Preamp IC,

The MQ-6 LPG – Isobutane – Propane Gas Sensor a semiconductor gas sensor that detects the presence of LPG, Isobutane,

YF-S201 Hall Effect Water Flow Meter / Sensor This sensor sits in line with your water line and contains a