I have been eyeing on this for weeks. Use discounted Amazon gift cards for even more savings :)
It retails for $159+ from local stores (e.g., Kogan, BBQ Galore).
NB. This is not the Plus version with extended range, so you will need to keep your device close. I have an iPad permanently located in the Kitchen, so perfect for me. If you use this in an oven, you really need to keep the iPad very very close, or you might experience disconnection issues. On the plus side, if the iPad is connected via WiFi, you can then relay the cooking information to other devices.
Good luck with it.
Apparently it's not worth buying unless you at least get the Plus version. Too many comms issues.