LM2596 DC-DC Buck Converter Adjustable Step Down Power Supply Module

High-accuracy DHT22 sensor with better precision and wider range than DHT11 for professional applications. More stable readings. Temp: -40°C to 80°C.

10.525GHz microwave radar sensor for motion detection through walls, glass, and non-metallic materials. Higher sensitivity than PIR. Range: 5-7m.

Digital temperature controller with NTC sensor for precise monitoring.