PRO 550 is the professional's dial in the PRO Series: 21 levels of momentary and continuous stimulation, which is the finest granularity Garmin offers, plus tone and vibration for up to three dogs. Trainers who work a lot of different dogs tend to want the range between levels to be small, and that is what this handheld is for.
The stimulation and vibration dial sits on top of the tube body; tone, beacon lights and an optional Upland Beeper are controlled by the switch and face buttons. A 2.5-inch fixed antenna delivers a stated 1-mile range and cannot be snapped off or left behind.
The dog device carries a BarkLimiter with Autorise correction for use at home and remote-operated LED beacon lights for low light. The handheld is IPX7, the dog device is rated to 1 ATM, and both use rechargeable lithium-ion packs with a charge indicator.
