The Onset S-CIA-CM14 HOBO 12-bit 4-20 mA Input Adapter Sensor interfaces with any sensor providing a 4-20 mA signal to connect to smart sensor compatible HOBO stations. This adapter features both a non-switched input and a battery-saving switched input that extends the life of external batteries. It also provides a trigger signal for controlling power to attached external sensors, while offering digital filtering which improves measurement accuracy with 32 readings/sample and 60 Hz noise rejection.