As of this posting, ThermoWorks is discounting Pro-Series Probes by 30%. No coupon code is necessary. Discount is automatically applied in your cart. Check ThermoWorks for current price and availability.
I use (and recommend) the Pro-Series Waterproof Needle probe in combination with my Chef Alarm. Check out my extensive Hands on Review for more info about that probe and the great Chef Alarm thermometer/timer combo.