The LT300 offers high current loop testing over a wide range of frequencies and supply voltages with simple, fast, two wire operation. It has a large clear display that aids visibility in poor conditions.
Three models are available:

  • LT300-EN-00 – with red/green leads
  • LT300-EN-BS – with BS1363 mains plug lead
  • LT300-EN-FS – with fused red/green leads

The high current loop test provides fast accurate and stable results with a resolution to 0.01 Ω on the 20 Ω range



The instrument is housed in a rubber armoured case with a built-in cover to protect the display when not in use. The IP54 weatherproof rating provides excellent protection in adverse conditions. The instrument is supplied with either a two wire (red/green) lead set, or a mains plug test lead for access to wall sockets, a certificate of test and a hard carry case.

High current loop tester
Single and 3 phase testing
16 Hz to 400 Hz operation
CATIV 300 V applications
Two wire lead set or mains plug leads
Tough armoured case