Honeywell Aquastat Controller, High and Low limit, 120 to 240 VAC/0.25 to 12 VDC, 65 to 200 deg F, 5.1 to 48 A, 5 to 30 deg F Differential, Horizontal/Vertical/Surface Mount, 3/8 x 2-7/8 in Copper Bulb, Micro Switch" Snap-Acting Switch, Import
Aquastat® Controllers are immersion type devices for limiting or regulating the temperature of liquids in boilers, storage tanks and other applications where temperature control is required.