All with free shipping in NZ, all NZ frequencies of 921.42Mhz

Z-Wave Battery Siren  $70

Aeon Labs Smart Dimmer 2nd Edition Model DSC19103 $60

2 x Digital Home In-Wall Switch Double DHS-ZW-SWIW-01 $50 each

2 x Digital Home In-Wall Dimmer DHS-ZW-DMIW-01 $40 each

2 x Digital Home In-Wall Switch Single DHS-ZW-SWIW-03 $40 each

3 x Aeotec Multisensor DSB05-ZWAU $40 each

3 x Fibaro Motion Eye $70 each

Aeotec Recessed Door Sensor Gen6 $60

Or the whole lot for $550