Power Supply:AC100-240V 50/60HZ; Temperature setting range: -50 ~ +999 /F; Input themocouple:(K,J,E,N)4 types of thermocouples input by customers selected at panel Usage in hearing or cooling control; Display:Two lines,Three digits in Celsius() Fahrenheit (F)(User can select it); Display resolution:1C/1F; Control precision: 0.5%FS; Control mode:PID,ON/OFF (On/Off Control when P=0) Output Output:One group control control output,It supports the following 2 ouput methods for users to use by themselves. (Relay contacts 3A @250VAC or Voltage impulse output 12VDC for external SSR) Contact capacity 250V AC 3A (resistive load); Alarm:One alarm,6 kinds of alarm mode:high deviation/low deviation/process value alarm; Power consumption10VA Ambition temperature:0-50C,30-85%RH,no corrosive gas Panel name and its fuctions: PV:Measureed value/various parameter symbols SV: Set value/various parameter set values Out: output indicator lamp AT:PID automatic indicator lamp AL1:Alarm indicator lamp :Increase numbers : Decrease numbers :Shift KEY MODE:Used for paramter calling up and set value registration Item size: (S type) 48 x 48mm Installation Hole Size: 45 x 45mm (S type) Material: plastic colour: Package Contents: 1 x Digital Pid Temperature Controller 1 x English manual Only 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.