Digital PID Temperature Controller -C100 C100 Thermostat :Adopts industrial-grade professional self-tuning PID technology, compared with the traditional PID control, it has a rapid temperature control, fast response, small overshoot and high ; The range of measurement digital display: -1999~9999 and -199~9999; PID Temperature Controller Meter Indicator can be used for Auto system in line of light industry, chemistry, machinary , metallurgy, ceramics, pertrification industry, or temperature control and adjust system of food & beverage, smoker , incubator, oven; furnance, plastic extruder heating process etc. SSR-40DA: SSR Solid State Relay SSR 40DA for PID Thermostat Temperature Controller;Input : DC 3-32V; Output : AC 24-380V; with White Heat Sink: Screw Thread: ;Roof: 50mm x 60mm;Foot: 80mm x50mm;Height: 50mm; Type: K Type; Measuring Range: 32~1112°F (0~600°C) ;How to use :Connect the to the + positive pole , and the blue are for negative pole Package Includes: 1 x -C100 PID Temperature Controller 1 x K Type Probe Sensor 1 x SSR-40DA 1 x White Heat Sink, Weight: 0.85759819918 pounds, Manufacturer: Yoeruers