Description: Dual LED display, settable unit for Fahrenheit(F) and Celsius(C). The temperature display range is -199~1800C, accuracy: 0.3%F.S2dgt. Auto-tuning PID adjustment to choose for different applications or environments to be controlled. Available for many TC or RTD input, precise, stable and simple for use. It can be powered by AC/DC 90-260V. V: 0-10V DC S: SSR R: Relay. VSR model represents the main control is 0-10V output, with 2 alarms(SSR and RELAY). This is a dual display digital temperature controller that can be applied to automatic system of chemical industry, light industry, chemistry, machine, metallurgy(etc.) to control the temperature. Specifications: Model: TA4-VSR. Material: ABS. Size: 48*48*80mm. Hole Size: 45 * 45mm. Color: show as pictures. Display: LED Display Power Supply: 90-260V AC/DC. Display Range: -199~1800C. Accuracy: 0.3%F.S2dgt. Notes: Due to the light and screen setting difference, the item 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package include: 1 * Temperature Controller. 2 * Bracket. 1 * User Manual.