Loop-Powered Two-Wire 4-20mA Conditioner/Isolator	TWI-22-TB
Loop-Powered Two-Wire Millivolt to 4-20mA Converter/Isolator	TWI-MVXX-TB
Loop-Powered Optical Signal Isolator	OTC-22
Loop-Powered Two-Wire Frequency to 4-20mA Converter/Isolator	TWI-FRX-TB
Loop-Powered Two-Wire Millivolt to 4-20mA Converter/Isolator	TWI-MVX-TB
Loop-Powered Two-Wire AC-Current to 4-20mA Converter/Isolator	TWI-ACI-TB
Loop-Powered Two-Wire AC-Voltage to 4-20mA Converter/Isolator	TWI-ACV-TB
Loop-Powered Two-Wire RTD to 4-20mA Converter/Isolator	TWI-RTX-TB
Loop-Powered Two-Wire Slide-Wire to 4-20mA Converter/Isolator	TWI-SLX-TB
Loop-Powered Two-Wire Thermocouple to 4-20mA Converter/Isolator	TWI-TXX-TB