The BasicLine BL560 repeater power supply is used for 2-wire sensors and is enclosed in a compact 6mm housing.  The repeater is often used for supply and signal decoupling of 2-wire sensors in safe areas and is suitable for most loop-powered transmitters and 2-wire sensors.  This Knick unit is short-circuit proof as well as comes with some of the highest reliability in the industry backed by a 3 year warranty.