XMT-xxxx Series Intelligent PID Temperature Controller are the multi-functional regulators adoptingthe Mini processing units.The instrument has automating function to self adapt to different systems.The instrument can also be degrees Celsius, degrees Fahrenheit temperature.Five control optional:0.One alarm relay1.Relay contact PID output2.One alarm relay output;SSR all the way non-contact level PID output3.One alarm relay output;SSR-level all the way back to poor control output4.Backlash relay control outputColour:blackMaterial:plasticPackage Contents:1 x Thermostat DigitalOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.