BSIDE U0 Rechargeable Open-Jaw Clamp Multimeter

The BSIDE U0 is a rechargeable open-jaw clamp multimeter listed for AC and DC current checks up to 100 A, alongside voltage, resistance, continuity and non-contact voltage detection. Its compact format and automatic function selection are aimed at quick electrical checks, while the current range and listing inconsistencies make it important to match the instrument to the job.

At a glance

The open-jaw design is intended to measure AC and DC current without contact, with a listed range of 1–100 A.
Automatic testing is claimed for AC/DC voltage and current, resistance, continuity and live-wire checks. Manual mode is also mentioned.
Non-contact voltage detection is described with adjustable sensitivity, buzzer and visual alert. The listed threshold wording varies.
Compact dimensions and a stated weight of 101 g may suit pocket carry and checks in confined wiring areas.
A built-in rechargeable battery and LED flashlight are listed. The description also specifies a 15-minute automatic switch-off.

Price

£27.99Save 20%

Reference price: ~~£34.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

Combines open-jaw AC/DC current measurement with voltage, resistance and continuity functions in one small tester.
Rechargeable power and a built-in flashlight reduce reliance on replaceable batteries and help with dimly lit wiring checks.
Automatic function selection is presented as a simpler option for quick checks, while manual mode is also claimed.

Cons

The listed current measurement tops out at 100 A, so it is not suited to work requiring a higher current range.
The supplied measurement description lists voltage up to 610 V, so the separate 1000 V maximum operating-voltage figure should not be taken as a stated voltage-measurement range.

Technical specifications

25 specifications

Identity
Brand	BSIDE
Model	U0

Power and battery
Power configuration	Rechargeable Battery Powered

Dimensions and installation
Dimensions listed	19 x 3.6 x 3 centimetres
Weight listed	101 Grams

Measurement and functions
Display	4000 counts
DC Voltage	0.800-3.99V/39.99V/399.9V/610V, 0.001V/0.01V/0.1V/1V, (0.8%+3)
AC Voltage	0.800-3.99V/39.99V/399.9V/610V, 0.001V/0.01V/0.1V/1V, (1.0%+3)
DC Current	1-100.0A, 0.1A, (2.5%+5)
AC Current	1-100.0A (40-1000Hz), 0.1A, (2.5%+5)
Resistance	5Ω-40MΩ, 1Ω, (1.2%+3)
Continuity	Buzzer beeps when measured resistance is less than 50Ω
NCV	Up to 1000V AC voltage with adjustable sensitivity
Live wire search	Yes

Other listed details
Minimum operating voltage	0.8 Volts
Maximum operating voltage	1000 Volts
Maximum alternating current	100 Amps
Upper temperature rating	500 Degrees Celsius
Specification met	CE
Colour	Black
Measurement type	Ammeter, Multimeter, Phase finder, Voltmeter

Operation
Auto power off	15 minutes
Power	3.7V battery rechargeable
Size	192 x 36 x 30 mm
Weight	101g

What to know before buying

Listing details to confirm

Listing details are inconsistent or unconfirmed: the listed dimensions are 19 x 3.6 x 3 centimetres in one field and 192 x 36 x 30 mm in the description, and the temperature rating of 500 Degrees Celsius has no corresponding temperature-measurement function specified. The non-contact voltage description gives 12V-1000V/90V-1000V, while the specification says up to 1000V AC. Confirm the applicable ranges and intended functions before relying on them. The description says to zero DC-current readings before testing for a more accurate result.

What’s in the box

Open-jaw testerIncluded
Charging cableIncluded
Test cableIncluded
User manualCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Electricians or DIY users wanting a compact tester for quick, non-contact AC/DC current checks up to 100 A.
Users who want voltage, resistance and continuity checks alongside clamp-style current measurement.
People checking wiring in tight spaces who may benefit from a pocketable body and built-in flashlight.

Less suited to

Work requiring current measurements above 100 A.
Buyers who need a clearly confirmed temperature-measurement function or a single, unambiguous voltage-detection range.

BSIDE U0 Rechargeable Open-Jaw Clamp Multimeter · photo 2 — Additional product photo 2

Customer reviews on Amazon

3.8 / 5 · 5 ratings

5 stars54%54%
4 stars23%23%
3 stars0%0%
2 stars0%0%
1 star23%23%

The supplied evidence contains only aggregate ratings, with a small sample and both high and low ratings represented. That gives a limited, mixed impression rather than clear evidence of consistent satisfaction or a specific fault. No customer comments are provided to explain the ratings, so judge suitability from the listed measurement ranges and resolve the specification uncertainties before relying on it for electrical work.

Frequently asked questions

What current range does the BSIDE U0 list?

The product description specifies 1-100.0A for both DC and AC current. AC current is listed at 40-1000Hz. The separate details field also gives a 100 A maximum alternating current.

Does this tester measure voltage as well as current?

Yes. The description lists AC and DC voltage, current, resistance and continuity testing. It also describes non-contact voltage detection and live-wire search.

Does the BSIDE U0 need a battery replacement?

The listing describes it as rechargeable and specifies a 3.7V rechargeable battery. It does not state battery life or charging time.

What is included with the tester?

The explicit included-components field names an open-jaw tester, charging cable and test cable. The description's package list calls the leads test leads and also mentions a user manual, so check the selected listing for the exact kit.