SPX RD312 Metallic Cover Locator


The RD312 locator reduces time wasted looking for lost covers and is the right choice for speeding up site work and achieving fast payback.
The RD312 automatically adjusts its sensitivity to suit its present environment. It can be used near metal fences and even under parked cars, with no loss of accuracy.


  • Easy two button operation, ON/RESET and OFF.
  • Automatic sensitivity adjustment for peak performance.
  • Advanced electronics makes location less time consuming.
  • Variable audio tone indicates presence of buried object.
  • Angle and height of search head fully adjustable.
  • Waterproof search head allows use in shallow water
  • Lightweight, telescoping design for easy storage.


The RD312 locator finds metal covers at depths down to:

  • 4 in (10 cm) cast iron cover 12 in (30 cm).
  • 6 in (15 cm) cast iron cover 16 in (41 cm).
  • 4 in (10 cm) plastic cover with metal plate 8 in (20 cm).
  • Cast iron cover 17 in (43 cm) x 12 in (30 cm) 24 in (61 cm).
  • Galvanized steel cover 25 in (63 cm) x 19 in (48 cm) 30 in (76 cm).
  • Cast iron cover 25 in (63 cm) x 19 in (48 cm) 30 in (76 cm).
  • Ignores buried metal trash.
  • No interference from passing vehicles.