Specifications:Size: 6*4.5*3.1cmColor: White Material: ABS Power Supply: 24VTemperature Measurement Range: -50~110Temperature Control Range: -50~110Temperature Control Precision: 0.1 Features:This advanced device is for controlling temperature in aquariums.Use in seafood machines, terrarium, vivarium, chicken incubator, etcWide temperature control range.Dual heating and cooling function.Temperature measurement function.Large and clear LCD display.Mini and light weight design.Easy to install, simple operation. Descriptions:Press UP button to show the starting temperature.Long press UP button the temperature to display flashing.Press UP/Down button to set the temperature value.Press Down button to show the stop temperature.