This electric upper thermostat from Preferred Parts is compatible with universal products and has a rectangular shape. It is hard mounted and operates on line voltage with an analog/mechanical control style. The thermostat is made of plastic and has a black color. The SP11698 model has a temperature sensor technology and is non-programmable. It comes with a warning label for California Prop 65 due to potential exposure to chemicals that cause harm. This unit is ideal for HVAC and refrigeration systems and is sold as a single item.