
ELMA BM 257 True RMS
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Product Description
Elma Instruments 42257 True RMS mini-multimeter with two new functions. Auto-Check is an intelligent function that automatically detects and selects AC voltage, DC voltage and continuity / resistance.
Technical Specifications
- Manufacturer part number (MPN)
- 42257 EAN / GTIN: 5706445410293 Sales unit: pcs Package quantity: 20 pcs Current supply: Battery Measured value memory: Yes Indication: Analogue/digital Measuring range selection: Manual/automatic True RMS measurement: Yes Continuity test: Yes Isolation resistance measuring range: 0–60 MOhm Interface: No Capacitance measurement: Yes Frequency measurement: Yes With decibel measurement (dB): Yes Measurement principle: True root mean square Data hold: Yes IR interface: No Explosion-tested version: No Analogue bar graph display: Yes Resistance test/diode test: Yes Inductance measurement: No Lowest resolution, DC voltage: 0.1 mV Lowest resolution, DC current: 1 µA Lowest resolution, AC voltage: 0.1 mV Lowest resolution, AC current: 1 µA Lowest resolution, resistance: 0.1 Ohm With conductivity measurement: No Max. voltage measuring range AC: 1000 V Max. voltage measuring range DC: 1000 V Max. current measuring range, AC: 10 A Max. current measuring range, DC:
Standards & Compliance
- HS Code
- 9031.80
Cross References
- EAN 5706445410293
- SAP 1000092019
- Code 8584686
Product Documentation
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Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 42257?
- 42257 can be ordered from cballast.com as a Elma Instruments catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Elma Instruments product?
- The manufacturer part number is 42257.
- What is the HS code for 42257?
- The customs tariff (HS) code for 42257 is 9031.80.
- Who manufactures 42257?
- 42257 is a Elma Instruments product in the Measurement & Inspection Tools range.
- Is a datasheet available for 42257?
- Yes — the 42257 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 42257?
- The minimum order quantity is 1.
- Is 42257 available?
- Yes — 42257 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
