The Autonic s TZ4W Digital Dual Display Auto-Tuning Temperature Controller is a versatile controller that can be used to control a variety of heating and cooling applications. It is a powerful tool that can be used to maintain a desired temperature in a variety of environments. The Auto-Tuning Heater Controller features a dual display and high-speed sampling for precision. Perfect for complex industrial heating/cooling systems. Features of Autonics TZ4W Digital Dual Display Auto-Tuning Temperature controller: PID control 4-20 mA output RS485 communication Wide temperature range LCD display Easy to use Specification: Input voltage: 120-240 V AC Input current: 1 A Output current: 20 mA Temperature range: -40 to 200°C Resolution: 0.1°C Accuracy: ±0.5°C Dimensions : 4.3 x 2.1 x 1.3 inches Weight: 0.4 pounds Uses : Heating and cooling applications Temperature control in laboratories Temperature control in industrial processes Other applications that require temperature control Package includes : Autonics TZ4W Digital Temperature Controller User manual