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Resistance Tester – Test the Electrical Resistance Values for Compliance


The RT-501 Resistance Tester is the premium version of the RT-500. This package INCLUDES 5 pound Electrodes and is for ESD testing use.

SKU: SS-RT-501 Categories: ,


The RT-501 is an advanced version of the RT-500 Resistance Tester. The Instrument is used to test the electrical resistance values of ESD flooring, matting, chairs, smocks, carts and more. All of these test require a megger capable of ranging from 10 to 100 volts and REQUIRE the use of the 2 each 5 pound electrodes that are included in this kit. These electrodes are required over the parallel bars because they provide a specific weight, density and a diameter that is covered with a conductive material of a specific hardness!


The RT-501 displays the resistivity / conductivity in decades using an easy to comprehend LED readout. The parallel bars located on the back of the device are good for spot checking products and may be useful for some items. But, when performing a compliance verification or your ESD matting, flooring, chairs and carts etc. plug the external electrodes into the device and use them as described in ANSI/ESD S20.20-2014’s.


United Static Control Products knows ESD. Let us help you with your resistance testing needs! We’ve been in business for over 15 years and know our way around static control equipment.


  • Multi Range – 103 – 1012 ohms -100 percent accuracy
  • LED Readout – Easy to comprehend
  • Multi Function – Measures RTT, RTG and volume resistance
  • Compliant – Meets ANSI / ESD, UL and most ASTM standards
  • Compliant – to most Military and all EIA and EN standards
  • Automatic – 10 to 100 volts, automatic voltage selector
  • Automatic – zeroing
  • Portable – Small, light weight – 2.6 x 5 x 1.2 inches, 8.4 oz.
  • INCLUDES – 2 each 5 pound electrodes and their associated cable AND comes in a hard shell case that provides protection and ease of portability for the equipment.
  • The RT 501 includes:
  • Hard Shell Case, 2 each 5 pound industry compliant external test electrodes, their associated cable, parallel bar resistivity probes (located on the back of instrument), grounding hardware, instructions, 1 year limited warranty, NIST certificate, 9V alkaline battery.


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