Ideally in Wellington.

Have some temperature-sensing tags that don't actually work with the Fonkan FM-505 module I've got as it can't be set to continuously broadcast, and they need to be powered for longer than the duration of a read/write command. 

I want to read a few of them for a short term as we're doing some testing and would like to measure the temperature inside potted equipment.

Note these are UHF (860-028MHz) tags, not standard NFC 13.56MHz ones that can be read with a phone.