The DET 5/4 is a fully automatic, four terminal instrument built into a
rugged water resistant case (IP54), providing protection even for
outdoor use.
The unit is used for reliable testing of earth electrodes, continuity
and measuring earth resistivity. The automatic operation ensures
that a valid reading is always obtained or a warning of an invalid test
given.
• Superior noise immunity to 40V
• Autoranging from 10mΩ to 20kΩ
• Able to carry out tests to BS7671, BS7430 and VDE 0413 part 7
(1982) standards.
• Either rechargeable (4R) or dry cells (4D)
• Accuracy +/- 2% of reading +/- 3 digits

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