Need precise temperature control for your projects? This complete PID controller kit has everything you need! The REX-C100 digital controller offers +/-0.5% accuracy with 14-bit resolution and 0.5-second sampling. It handles temperatures from 0 to 400°C (32°F to 752°F) and works with 110-240V power. The package includes the PID controller, 40A SSR relay, aluminum heat sink, and K-type thermocouple probe with thread. Features include PIN control (ON/OFF and PID modes), self-tuning, relay output (250V AC 3A), and full programmability for warning settings and hysteresis. The solid state relay handles up to 40A with 24-380V AC output, and the heat sink keeps everything cool. Perfect for heating systems, ovens, incubators, or any application requiring precise temperature management. Whether you're a DIY enthusiast or professional, this all-in-one kit makes temperature control setup easy. Get accurate, reliable temperature regulation for your heating projects!