Disclaimer: The NCBI taxonomy database is not an authoritative source for nomenclature or classification - please consult the relevant scientific literature for the most reliable information.

Voltages of 50 Volt AC or 120 Volt DC and over can be tested without a battery. Other features include one-handed operation and automatic battery monitoring.

Reference: How to cite this resource - Schoch CL, et al. NCBI Taxonomy: a comprehensive update on curation, resources and tools. Database (Oxford). 2020: baaa062. PubMed: 32761142 PMC: PMC7408187.

The Mastercheck 2MM is a 2-pole voltage tester that is also capable of indicating polarity and continuity. A 2-pole voltage tester is the only approved testing instruments that fulfils the requirements of work protection regulations.