Best Multimeter Cases

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Updated 22 October 2026

Author: Ken

The best multimeter cases state an interior size and name your exact meter, and only five of the twelve listings here give an interior size. Work on mains circuits can kill, a case does not change a meter’s CAT rating, and the rating must suit the circuit. Panel or service work belongs to a licensed electrician. This guide checks seven case listings against sizes Fluke publishes for its meters and says what each listing leaves out.

Quick answer

• Choose the Comecase hard case with the 19-model list if you own a Fluke 87V or 88V. Its stated interior of 8.2 by 4.3 by 2.4 inches clears an 87V with holster by Fluke’s published size.
• Choose the Xin Tester case for a Fluke 117 or 115 when you want spare room. By the numbers it is too short for an 87V with holster.
• Check the worfty case before buying for a Fluke 117 or 115. Its own recommended maximum width is 3.15 inches, and Fluke publishes 3.31 inches for those meters.
• Treat “waterproof” as a word, not a rating. No listing here states an IP code.

What a case cannot do

A case stores and carries a meter. It does not rate the meter. Electronics Reference describes CAT II as measurements on circuits fed from a household wall outlet and CAT III as measurements on building installation, “including circuit breakers, distribution boards, bus bars, wiring, switches, and junction boxes.” That page also says test leads and probes carry their own category and working voltage ratings, that “a measurement is only as safe as the lowest rated component,” and that you should always verify the rating of your test leads. A mesh pocket full of leads is only as good as the lead with the lowest rating. For more on the meters themselves, see our guides to the best multimeter and to CAT III 600V multimeters.

Fluke’s multimeter safety guide adds a rule for the day you take the meter out of its case: visually inspect the meter, probes and accessories for physical damage, check that plugs fit securely, look for exposed metal or cracks in the casing, and never use a damaged meter or damaged test probes. A case can hide a cracked housing or a nicked lead until you open it, so open it and look. This guide gives no steps for any electrical work. If the job reaches a panel or service wiring, hire a licensed electrician.

How we checked fit

Ten of the twelve listings name the meters they fit, usually Fluke 117, 115 and similar models. Names alone do not guarantee fit, so we compared two things: the interior dimensions a listing states, and the meter dimensions the maker publishes.

Fluke’s page for the 117 gives a size of 167 x 84 x 46 mm (6.57 x 3.31 x 1.82 in), and its 115 page gives the same size. Neither page says whether that figure includes the holster, although both list a holster in the box. Fluke’s page for the 87V gives 201 x 98 x 52 mm “with holster.” The inch figures for the 117 pair 167 mm with 6.57 inches, so the pair works out to about 25.4 mm per inch. By that ratio, 201 divided by 25.4 = 7.91, 98 divided by 25.4 = 3.86 and 52 divided by 25.4 = 2.05 inches for the holstered 87V.

We compared longest side to longest, middle to middle and shortest to shortest. A listing gives its dimensions as L x W x H, and we assume the same order. Where a listing does not state an interior, we say so and do not guess.

How the listings compare on fit

The table shows the spare room in inches, measured as case interior minus meter size. A negative number means the meter is larger than the stated interior in that direction.

Case	Stated interior (L x W x H, in)	Spare room, Fluke 117 or 115	Spare room, Fluke 87V with holster
Comecase, 19 models	8.2 x 4.3 x 2.4	1.63; 0.99; 0.58	0.29; 0.44; 0.35
Xin Tester	7.5 x 4.3 x 2.6	0.93; 0.99; 0.78	short by 0.41; 0.44; 0.55
OLAIKE, large pocket	7.8 x 5 x 1.4	1.23; 1.69; short by 0.42	short by 0.11; 1.14; short by 0.65
worfty, recommended maximum	6.61 x 3.15 x 1.97	0.04; short by 0.16; 0.15	Not named by the listing
worfty, bottom-lid interior	6.69 x 3.35 x 1.38	0.12; 0.04; short by 0.44	Not named by the listing
RLSOCO, Fluke C11XT, Klein 69401, HESPLUS, Aproca, ZIBOO	No interior stated	Cannot check	Cannot check

Read the table as a first filter and not a verdict. The holster may or may not be inside Fluke’s 117 figure, the OLAIKE case is soft and may flex, and the worfty top lid adds depth that the bottom-lid figure leaves out. Three findings stand out. The Xin Tester has room for a 117 but not for a holstered 87V. The OLAIKE large pocket is 0.42 inch shallower than the 117 in Fluke’s published size. And the worfty width limit sits 0.16 inch below Fluke’s 117 width, even though the worfty title names the Fluke 117 and 115.

Numbers worked from the listings

How much of the outside is usable. The Comecase bullet gives an exterior of 8.9 x 5.3 x 2.9 inches and an interior of 8.2 x 4.3 x 2.4 inches. The interior volume is 8.2 times 4.3 times 2.4 = 84.62 cubic inches and the exterior volume is 8.9 times 5.3 times 2.9 = 136.79 cubic inches, so the interior is 84.62 divided by 136.79 = 0.62 of the exterior. The Xin Tester gives 7.9 x 4.7 x 2.8 outside and 7.5 x 4.3 x 2.6 inside: 7.5 times 4.3 times 2.6 = 83.85 and 7.9 times 4.7 times 2.8 = 103.96, and 83.85 divided by 103.96 = 0.81. More of the Xin Tester’s outside is usable space. The listings do not say how much padding sits in the rest, so this is a size fact and not a protection claim.

A conflict between two Comecase listings. The two Comecase listings share a title and bullets, yet the spec fields differ. One names 19 Fluke models and the other names 5. The bullet in both listings gives an exterior of 8.9 x 5.3 x 2.9 inches, but the second listing’s dimension field reads 8.27 x 4.92 x 3.15 inches, and 8.9 minus 8.27 = 0.63 inch of length is unexplained. The second listing also states a weight of 0.15 kg. Where listings disagree, we show both and pick neither.

Klein 69401’s own units. The bullet reads 4-inch (8.9 cm) wide, 9-1/4-inch (24.1 cm) high and 2-1/2-inch (5.7 cm). Divide each centimeter figure by its inch figure and the pairs give different ratios: 8.9 divided by 4 = 2.23, 24.1 divided by 9.25 = 2.61. The specification field reads 3.5 inches wide and 9.49 inches high, and 8.9 divided by 3.5 = 2.54 and 24.1 divided by 9.49 = 2.54. The centimeter figures match the specification field, so the inch figures in the bullet look wrong, and the listing does not say.

Named models. The Comecase specification field names 19 models, and the RLSOCO title and bullet name 19 across six brands. The ZIBOO bullets list far more, including UNI-T and Testo models. The worfty title names 8 models, its specification field 7, and its bullet adds an MM450 that the title and field omit, while the title has an MM420 the bullet omits. The listings do not say whether the names are confirmed fits or catalog matches.

The twelve listings: water, shock and shell wording

Listing	Water wording	Shell field
Comecase	Waterproof, shockproof and dust-proof	Hard EVA material
worfty	Waterproof, then a water-resistant shell with a zipper that is not	Hard EVA
Xin Tester	Waterproof in the title; moisture proof in bullets	EVA and Oxford cloth
RLSOCO	Water Resistant (field)	Hard
HESPLUS	Water Resistant (field)	Hard case, EVA
Aproca	Not Water Resistant (field); Water-resistant in the highlight	Hard
Fluke C11XT	Not Water Resistant (field)	Soft (field); hard in the title
OLAIKE	No water statement	Soft
Klein 69401	No water statement	600d nylon
ZIBOO, Boobowl	None usable	Not stated

No listing states an IP code. Fluke’s multimeter safety guide treats ratings such as CAT and Ingress Protection codes as formal parameters that align with standards, so “waterproof” in a title is not the same kind of statement. The worfty listing itself says the zipper is not water-resistant and is for emergency protection only, so do not leave it in the rain for long. The Fluke C11XT and Aproca listings contradict themselves or each other: one says hard in the title and soft in the field, the other says water-resistant in the highlight and not water resistant in the field.

The seven picks in detail

Comecase hard case, 19 models: the roomiest stated interior

Best for: a Fluke 87V or 88V owner who wants a hard case with an interior large enough for a holstered meter.

The listing gives an interior of 8.2 x 4.3 x 2.4 inches and an exterior of 8.9 x 5.3 x 2.9 inches. The Compatible Devices field names 87-V, 88V, 15B+, 17B+, 117, 115, 116, 114, 113, 177, 178, 179, 233, 101, 106, 107 and the F15B, F17B and F18B models. It describes an elastic strap that holds the meter in place, a mesh pocket sized for a non-contact voltage tester and extra leads, a sturdy handle and a double zipper.

Limits: the listing states no weight, and it says the case is sold without the meter. Skip if you want a snug fit for a small meter, because the interior is the longest stated in this group.

worfty hard EVA case: a Klein-focused listing with a tight width

Best for: a Klein MM300, MM325 or MM400 owner who wants a zippered mesh pocket in the lid.

The specification field names Klein MM325, MM400, MM300, ET140 and 80023P and Fluke 117 and 115. The bullets give a recommended meter size of 6.61 x 3.15 x 1.97 inches or smaller and a bottom-lid interior of 6.69 x 3.35 x 1.38 inches. The weight field reads 5.44 ounces and the bullets add a built-in mesh pocket and a wide handle.

Limits: the bullets call the case waterproof, then say the zipper is not water-resistant. Its recommended width of 3.15 inches is 3.31 minus 3.15 = 0.16 inch below the width Fluke publishes for the 117 and 115 that the title names. Skip if you own a Fluke 117 or 115 and want a margin.

RLSOCO hard case with foam: shapeable for less common meters

Best for: an owner of a less common meter such as a Greenlee, IDEAL or Cen-Tech model who can shape foam.

The listing describes three modes of shockproof foam lining, removable foams that can be cut into shapes, and a strap that holds the meter in place. The bullet names Fluke 15B+, 17B+, 117, 106, 107, 115, 101, 179, 116, 177, 113, 114, 178 and 233, plus Greenlee DM-45, Klein MM1000, Crenova MS8233D, IDEAL and Cen-Tech meters. The warranty field reads 2 year, the weight field 370 g, and the compartments field 2.

Limits: the listing gives no interior or exterior dimensions, and the material field says polyester while the bullets say EVA and 1680D material. Skip if you need a stated interior to check fit.

Xin Tester 7.9 inch EVA case: the universal listing with a stated interior

Best for: a reader with a Fluke 117 or 115 who wants spare room and an inner net bag for small parts.

The bullet gives an outer size of 7.9 x 4.7 x 2.8 inches and an inside of 7.5 x 4.3 x 2.6 inches. The Compatible Devices field names a multimeter, current clamp, voltage tester and electronic meter. The listing describes a hard shell with a zipper, premium EVA and Oxford cloth, and an inner net bag.

Limits: it names no meter model, and it states no weight and no warranty. The 7.5 inch interior length is 0.41 inch short of a holstered 87V. Skip if you want a listing that names your exact meter.

OLAIKE KingSung soft case: the lightest, with a wrist strap

Best for: a reader who wants a soft double-layer case for a Fluke 117-series meter and a clamp meter.

The first bullet names Fluke 117, 113, 114, 115, 116 and 101, clamp meters 323, 324 and 325, and Klein MM300 and MM400. The fifth bullet gives an exterior of 8 x 5.5 x 2.3 inches, a large inner pocket of 7.8 x 5 x 1.4 inches, a small one of 6 x 5 x 0.6 inches, and about 112 g. The specification fields list a wrist strap, two compartments and a 0.11 kg weight.

Limits: the large pocket is 1.82 minus 1.4 = 0.42 inch shallower than the 117’s published depth. The Capacity field reads 9.07 ounces, which the listing does not explain. Skip if you need a hard shell.

Fluke C11XT: the maker’s own foam case

Best for: a Fluke 11x or 17x owner or a Fluke 323-series clamp meter owner who wants the maker’s own case.

The title names 117, 116, 115, 179, 323, 324 and 325. The first bullet gives a 9.4 x 6.1 inch EVA foam case, and others describe a zipped accessory pocket, a mesh pocket and a carrying handle. The weight field reads 262 g and the compartments field 2.

Limits: the title says hard case but the Shell Type field says Soft, the Water Resistance Level field says Not Water Resistant, and no interior size is stated. Skip if you need a hard shell or a stated interior.

Klein 69401 nylon case: shoulder strap for Klein meters

Best for: a Klein clamp meter or multimeter owner who wants a nylon case with a shoulder strap.

The bullets name 600d nylon, a heavy-duty PVC zipper with a zinc alloy tag, and storage for Klein Tools clamp meters, digital multimeters and other test products. The weight field reads 3.2 ounces, the strap type is a shoulder strap, and an instruction guide is included.

Limits: the bullet’s inch sizes disagree with its centimeter sizes and with the 3.5 by 9.49 inch specification field, and no specific meter models are named. Skip if you want a hard shell or a confirmed fit for a named model.

Listings we left out

Five of the twelve records are not featured as picks.

• Comecase 87V case, black. It is the twin of the featured Comecase listing. It names 5 models and states a dimension field of 8.27 x 4.92 x 3.15 inches.
• Boobowl for Klein and Fluke. The specification fields name Klein 69149P, MM325, MM420, MM720, MM320, ET600, ET140, 80023P and Fluke 115 and 117, with an exterior of 8.07 x 5.71 x 3.15 inches, a removable divider and a mesh pocket. We left it out because every bullet stops mid-sentence, so only the fields could be used.
• HESPLUS for Fluke 15B+ and 17B+. It states a wrist strap, two compartments and Water Resistant in its fields, and no dimensions.
• Aproca for AstroAI. It fits one meter family, the AstroAI TRMS 6000 counts model, weighs 0.19 kg, and contradicts itself on water resistance. See our AstroAI TRMS review if that is your meter.
• ZIBOO C35 soft case. The bullets are compatibility lists, two of them identical, and the fields say Battery Powered and CE, ETL, RoHS, UL for a case, which the listing does not explain.

Buying checklist

1. Find your meter’s published size from its maker and compare it with the stated interior of the case.
2. Check whether the maker’s size includes the holster, and add the holster if it does not.
3. Check the named models, not the title alone. The worfty title, field and bullet name different Klein models.
4. Check the shell: hard, soft or a conflict between title and field.
5. Check what the pocket must hold: test leads, a non-contact detector, spare fuses.
6. Look at the water wording. If it matters, ask the seller for an IP code, because none of these states one.

How we chose

We read all twelve records in the research set on 22 October 2026. A record had to be a case for a multimeter or clamp meter and give enough complete text to quote. Seven were kept because each answers a different need: a roomy hard case, a Klein-focused case, a shapeable foam case, a stated universal interior, a soft wrist-strap case, the maker’s own case and a nylon shoulder-strap case.

We left out one twin and four listings with missing or unusable data. We do not rank the seven, and the order above is not a ranking. We used no bullet that stops mid-sentence, and we took meter sizes only from the maker’s own product pages.

What we could not verify

• Whether any case fits the meter it names. The listings give names, and the sources we opened give meter sizes for Fluke only.
• Whether the Fluke 117 and 115 size of 167 x 84 x 46 mm includes the holster.
• Klein meter sizes. We did not find Klein’s published sizes in a source we could open, so no Klein fit is checked here.
• Any water or drop rating. No listing states an IP code or a drop height.
• Interior sizes for RLSOCO, Fluke C11XT, Klein 69401, HESPLUS, Aproca, ZIBOO and Boobowl.
• Why the OLAIKE Capacity field reads 9.07 ounces and why the ZIBOO case lists a power source.
• Weights for Comecase 19-model, Xin Tester and HESPLUS.
• Warranty terms for every listing except RLSOCO, which states 2 year.

Mistakes to avoid

1. Buying on a title alone. The Comecase pair shows two listings with the same title and different named models and dimensions.
2. Assuming the holster is inside the size. Fluke’s 117 page does not say, so leave margin.
3. Taking “waterproof” as a rating. No listing states an IP code, and the worfty bullet says its zipper is not water-resistant.
4. Reusing a damaged lead from the pocket. Fluke says never to use damaged test probes, and Electronics Reference says to verify lead ratings.
5. Expecting a case to add safety. It protects the meter in transit and does nothing for the CAT rating.

FAQ

Will a Fluke 117 fit in these cases?

By Fluke’s published size of 6.57 x 3.31 x 1.82 inches, the Comecase 19-model case and the Xin Tester have room in all three directions. The OLAIKE large pocket is 0.42 inch too shallow by the stated figures, and the worfty recommended width is 0.16 inch below the meter width. The holster question is open, so leave margin. Our Fluke 117 case guide goes deeper on that one model.

Does a case make a meter safer to use?

No. It protects the meter in transit. The CAT rating, voltage rating and lead ratings come from the meter and leads. Electronics Reference says a measurement is only as safe as the lowest rated component. Our CAT III 600V guide explains the rating itself.

Are these cases waterproof?

None states an IP code. Some titles or bullets say waterproof, some fields say water resistant, and two say not water resistant. The worfty bullets add that the zipper is not water-resistant. Treat the wording as a hint and ask the seller for a rating if you need one.

Hard or soft case?

Hard EVA shells suit a meter that travels in a toolbox. A soft case such as the OLAIKE or the Fluke C11XT, which the field calls soft, is lighter. The Fluke C11XT listing says hard in the title and soft in the field, so check before you buy.

Where do test leads go?

The Comecase, worfty, RLSOCO and HESPLUS listings describe mesh pockets for leads and accessories. Leads carry their own category and working voltage ratings per Electronics Reference. Inspect them before every use, as Fluke’s guide says, and see our test leads guide if you need a replacement set.

Which case for a Klein meter?

The worfty and Boobowl listings name Klein MM-series models, the OLAIKE names MM300 and MM400, and the Klein 69401 is aimed at Klein products in general. We have no Klein dimensions from a source we opened, so check your model’s size with Klein before ordering. Our Klein multimeter guide lists the models.

Bottom line

Check the interior against your meter’s published size before you read anything else. For a holstered Fluke 87V, the Comecase 19-model listing is the only stated interior in this group that clears it by the numbers. For a 117 or 115, the Comecase and Xin Tester have room. For any meter, inspect the meter and leads before every use, and leave panel or service work to a licensed electrician.

Sources

• https://www.fluke.com/en-us/product/electrical-testing/digital-multimeters/fluke-117
• https://www.fluke.com/en-us/product/electrical-testing/digital-multimeters/fluke-115
• https://www.fluke.com/en-us/product/electrical-testing/digital-multimeters/fluke-87v
• https://fluke.com/en-us/learn/blog/safety/multimeter-guide
• https://electronicsreference.com/references/measurement_categories/