The MP220EX is a two channel, explosion-proof, wall mounted, control unit rated for use in Class 1, Div. 1, Groups C & D (B optional) hazardous areas. Operation via magnetic wand allows the unit to be operated without opening the cover, thereby ensuring that hazardous areas do not require declassification. Standard features include: 3 alarm setpoints per channel, digital display per channel, common relays (optional individual relays), operates on 110/220 VAC (autoswitching), and 24 VDC power supply to power sensor transmitters. The MP220EX can be used with either our standard sensor transmitter (SM95) or our intelligent sensor transmitter (4-20IQ). Please see below for details.