Fluke 20 Series include: Fluke 21, 21 Series II, 23, 23 Series II, 29, 29 Series II. This will also apply to Fluke 50S, 50D, 51, and 52 Thermometers, as well as Fluke 70, 70 III, 73, 73 Series II, 75, 77, 78, and 79. The general style is the same on all of these Fluke 20, 50, and 70 Series, and Series II Multimeters.
Note: The Fluke 20 Series Multimeters are yellow, but are still physically similar to the Fluke 70 Series with slight variations internally.
**Note: These replacement parts are not compatible with the Fluke 25, and Fluke 27. Contact us for assistance.