1)large LCD digital thermostat 2)110/220 VAC+/-10% 3)2-pipe thermostat for fan coil ... valve 5)Two work mode HY7001WWC Programmable Room ThermostatLarge LCD digital thermostat, 110/220 VAC±10%,2-pipe thermostat for fan coil ... speed (Low,Med,High or Auto)B, Product Specifications:♥ Voltage: 110 (±10%) VAC / 220(+10%,-15%)VAC,50/60Hz♥ Differential Temperature ...