Feature: 0-400° temperature control range Control mode: PID control and self-tuning control. Output mode: Relay/Solid State Relay (SSR) synchronous dual output Use high-quality PCBA and high-quality components to ensure product life and accuracy With professional digital IC chip, stronger processing ability Equipped with high-quality composite silver alloy electric shock relay, the output is more stable Specification: Model：CH102，CH402，CH702，CH902 Optional Accuracy：±0.5%FS±1°C Input types Thermocouple: K, J, R, S, B, E, N, T, W5Re/W26Re, PLII RTD: Pt100, JPt100 Voltage: 0-5V, 1-5V Current: 0-20mA, 4-20mA Output types：Electromagnetic relay + SSR Power consumption：AC100-240V: under 10VA; AC24V: under 5VA; DC24V: under 160mA Control method：PID, or ON/OFF Setting method：Touch switch Indication method：8-segment 4-digital display and LED indication Alarms 1. Alarm quantity: Default is 1pcs, if 2pcs, need to be customized 2. Alarm form: N: No alarm A: Deviation low B: Deviation high C: Deviation high/low D: Band E: Deviation high with hold action F: Deviation low with hold action G: Deviation high/low with hold action H: Process high J: Process low K: Process high with hold action L: Process low with hold action Operating temperature：0 to 50 °C (32 to 122 °F) Operating humidity：30-85% RH max, non-condensing The package includes: 1*Temperature Controller Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Manual measurement, please allow 1-10mm error. Thanks for your understanding. Dual Output SSR and Relay LCD Digital PID Intelligent Temperature Controller Materials: Made of high quality materials, robust and durable, safe and convenient to use. Size: matched to the corresponding model to match your working tool needs, check if it is the size you need before you buy. Function: This is a good companion you need on your tools, giving you a more convenient working life, in case you are busy indoors and outdoors Satisfaction guarantee: Your purchase is fully protected when you order today. If you are not satisfied with with our products, contact us any time, We will get you back within 24 hours try our best to make things right.