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    • 3900 Series Accessories

    The 3900 series probes have been discontinued.  We still offer the accessories for the probe. (See Below)

    Our 4900 series probe  is the replacement for the 3900 series.

    The main difference is the fixed tip.

    • The 3900 series has a .055" Heavy Duty Fixed Tip.
    • The 4900 series has a  interchangeable tip  with the .055" Heavy Duty Tip and a .030" Micro Tip.
    3900 Series   4900 Series Replacement
    3901-2 1X/10X 4901-2
    3903-2 1X 4903-2
    3904-2 10X 4904-2


    Made in USA

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