Combined temperature switch & sender

  • Deutsch DT 3-Way Compatible
  • Exceeds IP67
  • Matched to Customer Gauges
  • Tamper Proof Housing
  • Broad Choice of Mounting Threads Available
  • Withstands Acceleration to 4G
  • Rugged Construction for Tough Applications


DSO Temperature Switches and Senders are ideally suited for use on all types of engines, pumps, compressors, gearboxes, industrial power plant and other application where resistance to the elements is the primary consideration.

Physical Description

The DSO consists of a single compact non-adjustable unit based on a 24 A/F hex brass body. This enables the control to be fitted directly into the application.

The DSO provides fast, accurate temperature response through a thermistor that is located in the tip of the phial protruding from the main body of the unit.

Reliable electrical connection, in the toughest of
conditions, is made using a Deutsch DT 3-way connector.
IP67 IP 6K 9K rated, this connector is hot pressure
washer resistant and is used by the military and leading
off-road plant manufacturers.


The DSO is a combined temperature switch and sender. The sender output drives gauges or ECU's. The switch can be arranged to operate an alarm, initiate a shutdown or cut in a cooling fan at a pre-determined operating temperature, preventing damage to your valuable plant machinery.

Installation Considerations

Check there is enough clearance around the flats of the body and ensure the maximum possible temperature is not exceeded for a long service life.

For accurate temperature measurement, reliable connection and Ingress Protection, it is essential that the DSO is matched to the application you are using and that genuine Deutsch DT connectors are used.

For further information about the DSO, please contact us today.