The Winland EnviroAlert EA200 Dual Zone Critical Condition Monitoring is a programmable thermostat designed for home and garden heating and cooling systems. This rectangular shaped thermostat is wall-mounted and operates on a low voltage power source. It features a digital control style with a 4-wire wire configuration and temperature sensor technology. The EA200-12 model from Winland Electronics offers 4 heat stages and wireless functionality with a digital display and timer features. Made of white plastic, this thermostat is compatible with universal heating systems and provides reliable monitoring for critical conditions in two different zones.