Comparison : Item # 18-811IS, mV or TC
Transmitter
FM Approved
Item # 18-812IS, Resistance
Transmitter
FM Approved
Item # SM811, mV/TC Transmitter
(Selectable Range)
Item # SM812, RTD Transmitter
(Selectable Range)
Item # SM812-EC3, RTD Transmitter
(Fixed Range)