50,000 Count Digit Dual Display Bench Multimeter

Discontinued Model 5491A

Discontinued: May 26, 2010 MSRP $419 / 1 Yr Warranty

The model 5491A is a very accurate 50,000 count, dual display, true RMS bench multimeter.

  • Low cost and high performance
  • True RMS (AC, AC + DC)
  • Resistance measurements up to 50M ohms
  • Measures frequency to 500KHz
  • dBm measurement
  • RS 232 Interface



Description Version Download
Operating software V1.04 AK5491.zip
  • Software and RS-232 cable for 5491 & 5492

    Model AK 5491

    MSRP $102.00

  • Rack Mount Kit for single 5491 or 5492

    Model RK 01

    MSRP $51.00

  • Sheathed Test Lead Set

    Model TL 1

    Economical replacement test leads. TL-1 has safety shrouded banana plugs

    MSRP $8.50

  • General Purpose DMM Kit

    Model TL 130A

    If you need only one basic accessory kit  for your meter, this is the one. Attach probes or clips to the sheath plug to complete your test. Soft, flexible silicone leads make movement easy. Kit is voltage and current rated for electronic or electrical applicaitons.

    • IEC61010-2-031
    • Silicone lead wire length 60" (1.5 m)
    • Tri-fold velcro pouch

    MSRP $69.00

  • Maxi-Pro DMM Kit

    Model TL-50


    • Complete accessory kit for all your testing needs.
    • Includes soft, flexible silicone lead wire easy movement and Tri-Fold Velcro Pouch for convenient storage.
    • All components compliant to IEC61010-2-031
    • Silicone lead wire length 60" (1.5m)
    • Tri-fold Velcro Pouch


    MSRP $79.00

  • High Performance Bench DMM Accessory Kit

    Model TL500

    This kit of accessories was assembled to facilitate requirements by high-performance bench digital multimeters (DMM's) users. All the most popular accessories in one kit. The kit offers MiniProbe test probe, with spring-loaded tips, for fine probing; MiniPRO Test Clips for small and MiniFlex Test Clips for micro connections; and for those larger test points, both spade lug and banana plug adapters, two pairs of test leads for 4-wire measurements or calibration hookups, an insulated BNC male to sheathed banana jack adapter, and an insulated SMD Tweezer set for surface-mount component testing.

    • Silicone jacketed test lead wire
    • MiniProbes w/Spring loaded Stainless Steel Tips
    • Packaged in Plastic Case


    Kit Contains:
    (4) Test Lead 4mm Sheathed P-RaP Silicon 0.75,  40": (2) Black, (2) Red
    (2) Spring Tip Mini-Probe-4mm Jack: (1) Black, (1) Red
    (1) Insulated BNC male Adapt-4mm Safety Jacks
    (2) Adapter 4mm Banana Plug to Jack: (1) Black, (1) Red
    (2) Mini Flex Clip-4mm Jack-Silicon 0.40, 10 cm: (1) Black, (1) Red
    (2) Adapter 6mm Spade 4mm-Jack: (1) Black, (1) Red
    (2) Lead minipro-J-PVC 0.40, 10 cm: (1) Black, (1) Red
    (1) Tweezer Test Lead Set- 4mm P, w/PVC pouch



    -20 to +80 ºC

    RoHS (2002/95/EC)


    Stocking Distributor Item


    MSRP $159.00

  • USB to Serial (RS232) Adapter

    Model USB2RS

    USB to serial converter to allow the connection of RS232 intstruments to a PC via a USB interface.

    • Supports both USB 1.1 and USB 2.0 interface
    • Product that use a Null Modem/Cross cable will need to connect this adapter to the crossed cable
    • Link to USB Driver

    MSRP $29.00