Model 3315 DC Locator for 6-50V DC by Santronics

A hand-held device for determining the presence or absence of 6-50V DC. Both visual and audio outputs.


The Santronics DC Detector, Part # 3315, is the newest of the Santronics instrument line. It introduces a revolutionary breakthrough in DC voltage detection. It can be used to troubleshoot any DC circuit with voltage ranging from 6 to 50 volts DC.

The DC Detector features an LED that never burns out, a loud buzzer, and a sharp, rust proof, stainless steel tip for penetrating insulated wires. The DC Detector also features an extended ground lead with an extra large alligator clip to insure a good connection. The DC unit is user friendly and pen shaped to fit comfortably in the hand.

There is no ON/OFF switch, since switches can malfunction over time. As a result, the DC Sensor is always on and ready to use.


  • Buzzer - provides audio indication of DC voltage.
  • LED Light - will never burn out.
  • Large Clip - fits ground connection points small to large.
  • Sharp Tip - penetrates fine and heavy wire.
  • Construction - using the finest materials available.
  • Stainless steel tip - rustproof.
  • Solid state circuitry - total reliability.
  • Test Lead Wire - 20 gauge, heavy duty, heat resistant.
  • Pen Sized - to fit comfortably in user's hand.
  • 100% manufactured in the USA.