Watthour meters available

I have a number of these available and wanted to see if any US-based members here at AAC might want one. These are not intended for revenue service, but if you wanted to monitor the usage of an appliance or a space partitioned off as an apartment, this might be the thing. Note the harness coming out the bottom - these are all fitted with a 'pulse initiator' that bounces a beam of light off a painted pattern on the bottom of the disk, allowing the revolutions of the disk to be counted (and therefore energy usage calculated).

I'm looking for $25 + packing / shipping from the north-central USA - drop me a DM if interested. Mods you can delete this thread if this is not in the spirit of the Marketplace section.