Most models of EZMeters now carry the UL Recognized Component mark. This mark is the customer’s assurance that the meters meet UL’s standard for fire and electrical safety. Recognized in the United States and Canada by OSHA and local building inspectors, the mark applies to all 120 volt to neutral meters as well as higher voltage meters that do not have automatic meter reading (AMR) capability. The AMR meters have 2500 volts of isolation on the meter reading circuitry which is more than enough for the lower voltage meters, but below the 3000 volts isolation required to meet the higher voltage standard. UL Certificate of Compliance.