Never let your water freeze again! If you live in a cold climate you know how difficult it can be to keep your water in a liquid state, but not anymore! This water heater ensures safe, easy and precise temperature control for your chickens water supply. This water heater features a monitor light to indicate when the unit is heating (red light) and when it has reached the set temperature (green light). You will never have to guess whether this unit is working or not. This is a precision calibrated heater with an electronic thermostat, with reliable temperature settings ranging from 68° to 88° Fahrenheit.