Daiwa Power Meters require an external 12VDC
supply for the LED Dial Lamp and PEP operation.
Average power measurements do not require external power.
Wall adapter, 12VDC 1A Max Regulated output, 115/230VAC input.
Coaxial Power Plug 2.5mm-5.5mm, 2 mtr (6') Cable
A 12VDC cable is included with each Daiwa/Comet Power Meter for connection to your 12VDC supply. If you do not have a 12VDC you will need this adapter for PEP mode and for the dial lamp on the Daiwa and Comet VSWR Wattmeters.