Compact protected front end
HRC fuses, BeepJack and documented category ratings are unusually complete in this size and price.
Brymen
BM235 True-RMS Electrical Multimeter
A compact 6,000-count True-RMS meter with LoZ AutoV, VFD voltage/frequency, dual-sensitivity field detection and CAT IV 300 V protection.
- Score
- 7.3/10
- Est. life
- 10 yrs
- Cover
- 1 yr
Last-known catalog price
$114.40
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Product Overview
Brymen's BM235 packages a serious protected input into a compact 334 g body. Its 6,000-count True-RMS display refreshes five times per second and supports full microamp, milliamp and 10 A ranges, temperature, capacitance, resistance and line-level frequency. AutoV LoZ suppresses ghost voltages, VFD ...
$114.40
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Specifications
- OverviewBrand
- Brymen
- OverviewProduct category
- multimeters-and-electrical-testers
- OverviewExpected lifespan
- 10 years · We Buy It For Life editorial estimate
- Power / CompatibilityPower source
- 2 × AAA
- Warranty & ServiceWarranty
- 12 months · Warranty
Why We Love It
The features that make this product stand out from the competition.
Useful electrical modes
LoZ, VFD fundamentals and field detection address common electrician failure modes without a sprawling interface.
Replaceable wear items
Separate fuse/battery access plus available leads, thermocouples, fuses and holster support economical upkeep.
Detailed Quality Score Breakdown
Core Performance
Primary Performance
9.1
Brymen and TME document True-RMS sensing, full current ranges, 0.3% DC accuracy and 6,000 counts.
Feature Richness
7.6
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Build Quality
8.4
The manual specifies 1000 V HRC fuses, 6 kV transient protection and category ratings through CAT IV 300 V.
Reliability Score
8.6
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Longevity
Durability Rating
8.3
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Wear Resistance
7.4
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Component Replaceability
5.0
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Design Timelessness
7.4
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Serviceability
Repairability
4.8
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Spare Parts Availability
6.0
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Warranty Coverage
6.4
Brymen's manual states one-year defect coverage for the original purchaser.
Service Network
7.4
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Value
Total Cost of Ownership
7.7
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Resale Value Retention
6.6
AI-assisted preliminary estimate pending editor review and durable-source evidence.
User Satisfaction
8.5
AI-assisted preliminary estimate pending editor review and durable-source evidence.
Total Cost of Ownership Calculator
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Buy box purchase price$114.40
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$9.47
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$94.66
Over 10 years
Calculation: (Purchase Price + Total Maintenance - Resale Value) ÷ Lifespan
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Sign in to view price historyFrequently Asked Questions
What does True-RMS sensing add for AC measurements?
True-RMS sensing is intended to report the effective value of AC signals across waveform shapes such as square, sawtooth, triangle, pulse, and distorted waveforms with harmonics. The manual explains that this can be useful when a waveform is not a simple sine wave, but the stated accuracy and frequency limits still apply.
What are the BM235's electrical safety-category ratings?
The manual specifies CAT III 600 V and CAT IV 300 V AC and DC measurement categories, with 6.0 kV transient protection. It also describes the meter as meeting applicable IEC, UL, EN, and CSA safety standards. These category limits are not interchangeable: the CAT IV rating is 300 V, not 1,000 V.
How does the AutoV LoZ mode handle ghost voltages?
On model 235, AutoV selects AC or DC voltage based on the input and starts with low input impedance to drain stray or ghost voltages. The manual cautions that this loading can affect circuits that are sensitive to low impedance; use a high-impedance voltage mode for those circuits instead. AutoV is specified for signals above its stated threshold.
Can the BM235 measure variable-frequency-drive signals?
Yes. The BM235 provides a VFD-ACV function with a digital low-pass filter for fundamental voltage and frequency readings from many variable-frequency-drive signals. The manual gives the operating ranges and accuracy limits, so measurements outside those stated conditions should not be treated as specified readings.
What power source and accessories are specified for the BM235?
The meter uses two 1.5 V AAA batteries. The manual lists a test-lead pair, installed batteries, the user manual, and a BKP60 banana-plug Type-K thermocouple as accessories for model 235. It also lists a BKB32 banana-to-Type-K socket adapter, magnetic hanger, and soft pouch as optional purchases.
What warranty does Brymen specify for the BM235?
Brymen states a limited one-year warranty for the original purchaser, covering defects in materials and workmanship under normal use and service from the purchase date. The manual excludes accessories, fuses, fusible resistors, spark gaps, batteries, and products affected by misuse, alteration, neglect, accident, or abnormal operating conditions. Warranty service requires contacting an authorized agent or Brymen with proof of purchase.
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