Inkbird PID Temperature Controller with Relay DIN 1/16 ITC-100VH Thermostat (ITC-100VH) PID and ON/OFF Control Mode with high standard self-adjust function Multiple temperature sensors (K, S, Wre, T, E, J, B, N, CU50, PT100) Accuracy of displaying and controlling 0.1C, Self-adjusting function and intelligent control of the instrument to ensure the long-term stability. Omron relay inside