You are very limited to choices when it comes to the wireless versions of a pit / meat thermometer.
According to a recent post, the "Remington" is a re-branded "Maverick" for about $20.00 cheaper... I can't verify this as I no longer use wireless.
I went to a BBQ Guru, I figured if I was spending money on a wireless thermometer, that I was already halfway to the price of a complete pit controller. I no longer have to attend to my smoker, the Guru babysits the cooker and takes care of everything while I sleep..
Humphrey's DownEast Beast W/BBQ Guru