The Calog DPM9500 is a miniature space saving DIN rail mount current / volt / potentiometer two-wire transmitter. The Calog DPM9500 accepts standard process inputs of 0(4)-20mA, 0-2V, 0-10V, 0-20V or potentiometer and converts them to a 4-20mA loop powered signal. The Calog DPM9500 also has an LED function for indicating the state of the loop (LED intensity indicates the amount of current flowing in the loop). The Calog DPM9500 can be ordered with or without the onboard loop power supply option.