Features QUICK MEASUREMENT: Intelligent PID control allows fast measurement with great convenience, also very reliable. Precise Uses The handy controller also ensures high accuracy in measurement and sensitive response. Reliable work: With overheating protection, the temperature controller promises intelligent stabilization for work. 3 PIECE IN 1 SET - Includes 1 temperature controller, 1 solid state relay and 1 temperature sensing thermocouple. Clear Display The 2-row digital tube display provides clear viewing for easier reading and simpler operation. Specification: Item Type: Temperature Controller Model: REX-C100 3pcs Thermostat Model: REX-C100FK02-VxAN DA Operating voltage: AC220V 50/60Hz Temperature measurement range: 0-400℃ Output mode: no electric shock voltage pulse output, solid state relay (SSR). Static Relay Model: SSR-40DA Input voltage: 3-32VDC Output voltage: 24-480VAC Package list: 1 x temperature regulator. 1 x static relay. 1 thermocouple Note: Please pay attention to electrical safety before use. Package List 1 x Temperature Controller 1 x Solid State Relay 1 x Thermocouple