US 6V Power Adaptor for the Omron M2 Basic Blood Pressure Monitor by myVolts
AC 110-240V to DC 6V 0.5A 1A 2A 3A Universal Switch Power Supply Adapter Charger 6 V Volt for Omron Blood Pressure Monitor M2 M3 - Price history & Review | AliExpress
Amazon.com: Ac Adapter for Omron Blood Pressure Monitor 5, 7,10 Series - Power Supply Charge Cord Replacement for Hem-ADPTW5 [Output DC 6V 1A] : Electronics