The YRD-ZWM-1 is a Z-Wave Plus communication module that allows the YALE Assure family of locks (YRD256, YRD426 and YRD446) to communicate wirelessly and be remotely controlled via a Z-Wave enabled automation system.
It simply plugs into the module port under the battery cover of the lock.
Information about Z-wave frequency:
For each country or region, only approved Z-wave frequency should be used. For New Zealand's the frequency is 921.4 MHz. It is important to make sure that your Z-wave automation hub support this frequency.
The Z-wave frequency may be different if you purchase Z-wave automation hub from overseas, and it will not work with Z-wave products for NZ market. It is also a legal requirment to only use the correct frequency in NZ. Please read the NZ regulation from link below when you purchase radio/wireless products from overseas: