Brymen BM257s Professional Multimeter

(8 customer reviews)

£82.78 (£99.34 inc VAT)

29 in stock (can be backordered)

Availability: Stock models delivered next working day (UK only) for orders placed before 15:00 (Mon - Fri)

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Brymen BM257s Professional Multimeter

CAT II 1kV / CAT III 600V digital multimeter.

Brymen Handheld Multimeter Comparison Table

Model Digits Counts DC Voltage / Current Range AC Voltage / Current Range OHMS Ranges Line Level Frequency Range
BM235 3-5/6 Digits 6,000 Counts 600.0mV – 1000V 600.0mV – 1000V 600.0Ω – 60.00MΩ 99.99Hz – 50.00kHz
BM257s 3-5/6 Digits  6,000 Counts 0.01mV – 1000V 0.01mV – 1000V 0.1Ω – 60MΩ 10.00Hz – 10.00kHz
BM785 4-5/6 Digits 60,000 Counts 600.0mV – 1000V 600.0mV – 1000V 600.00Ω – 60.000MΩ 99.999Hz – 50.000kHz
BM789 4-5/6 Digits 60,000 Counts 600.0mV – 1000V 600.0mV – 1000V 600.00Ω – 60.000MΩ  99.999Hz – 50.000kHz
BM867s 5-4/5 Digits 500,000 Counts 0.001mV – 1000V 0.01mV – 1000V 0.01Ω – 50MΩ 10Hz – 200kHz
BM869s 5-4/5 Digits 500,000 Counts 0.001mV – 1000V 0.01mV – 1000V 0.01Ω – 50MΩ 10Hz – 200kHz
BM877 3-5/6 Digits  6,000 Counts 60.00mV – 1000V 60.00mV – 1000V 600.0Ω – 60.00MΩ
BM878 3-5/6 Digits  6,000 Counts 60.00mV – 1000V 60.00mV – 1000V 600.0Ω – 60.00MΩ
BM887 3-5/6 Digits  6,000 Counts 60.00mV – 1000V 60.00mV – 1000V 60.00Ω – 60.00MΩ 9.999Hz – 100.0kHz


General Specifications
Manufacturer Brymen
Display 6000, Backlighted
Sampling 5 x/s
Accuracy (DCV) 0.2% + 3d
Function & Features Multimeter for electricians
Basic Measurements ACA, ACV, DCA, DCV
Other Measurements (Max Range) Capacitance, Continuity, Frequency (logic), Resistance, Temperature
Special Features AutoCheck (TM), EF-Detection
Special Functions AVG, Crest 5ms, HOLD, MAX, MAX-MIN, MIN, REL
Overload Protection 1000V
Surge Protection 6.5kV
Measurement Category (Safety) CAT IV
Category Voltage 300V
Standard Accessories Test leads, Battery installed, BKP60 K-type thermocouple, User’s manual
Optional Accessories BMH-01 Magnetic hanger, BRUA-20X USB Interface kit
Dimensions 161mm X 80mm X 50mm
Weight 340g


Specifications are liable to change. For the full list of Specifications, please see the products datasheet located under the ‘Documentation’ tab.

8 reviews for Brymen BM257s Professional Multimeter

  1. Paul C

    Great meter first class service with next day delivery

  2. Chris A


  3. Ralph B

    This auto-ranging meter does exactly what I need it to do when I design Arduino-related products.

    I like the analog graph at the bottom of the display and the auto-off has already saved the battery.

    Tested against other products it is very accurate (good enough for me) and the REL button lets me null out any resistance in the ohms setting or voltage so you can see the difference. More useful than you might think!

    I’m still getting to grips with all the features and I have no doubt this will do everything I need (and more) for the next few years at least.

  4. Stephen B

    Much better than the B&Q multimeter I bought 10 years ago!

  5. Keith B

    I researched fully before buying this meter and in my opinion it is the best bang per buck meter you can buy. Great range of features and good safety. Telonics prices are the keenest around , but their customer service is also second to none with communications informing you every step of the way. An invoice arrived the day after ordering and the meter the day after that – incredible service. I can only reiterate – buy one of these meters and buy it from Telonic.

  6. John S

    nice product , good price ,

    received quickly no reason to contact them

  7. Ian K

    Am really pleased with this little MM is packed with features and does not take up much bench space but still has nice big display.
    Would i buy another? YES
    Would be nice if data logging had variable speeds.
    Say 1, 2, 5, 10 samples per second

  8. Andrew W

    I was searching for a multimeter and Telonic came up on the search. I decided to take a chance rather than pay over the odds with other retailers and i’m glad I did. Quick to dispatch my item and top notch service.

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Optional Accessories …