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The RD312 locates lost or hidden metal covers in the street. It is light and simple to use. Gain can be manual or auto. The position is indicated by a varying pitch tone, the highest pitch indicating the maximum response over the target. It is robustly constructed from high impact ABS and aluminium and is weatherpoof to IP54. It weighs 1kg weight and is easy to use, swiftly locating lost manhole covers, valve boxes, in the street. The RD312 will typically run for 30 hours from a 9v alkaline battery.


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  • Absolute limits of location range cannot be accurately specified. As a guide the RD312 will detect buried metal covers to the following depths:
  • Manhole cover 63 cm (25 in) To 76 cm (30 in)
  • Valve box 15 cm (6 in) To 41 cm (16 in)
  • Plastic valve box (locatable) 10 cm (4 in) To 20 cm (8 in)
  • SKU RD312-NEW
    Model # RD312
    Brand Radiodetection
    Shipping Weight 2.0000kg
    Shipping Width 0.275m
    Shipping Height 0.020m
    Shipping Length 0.070m
    12 Months Return to Base Warranty



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