Customers return products for any number of reasons. OSI International inspects these products, tests and repairs as necessary, and resells them as refurbished products. These units work like new, show slight or no wear, and ship with all original accessories plus a 120-day warranty. Limited quantities exist.

The USAlert WatchDog is a 2-Tone Voice pager specifically developed for the public safety market to alert firemen and other emergency personnel monitoring or responding to time critical emergency situations. Operational in the VHF or UHF frequency bands, the pager is fully synthesized and comes in both wideband and true narrowband models. With separate receiver boards for wideband and narrowband operation, the pager is not only narrowband capable, it is narrowband compliant. 15 individual addresses are available on each channel, 10 standard 2-Tone addresses and 5 long tone addresses.

The pager is designed for harsh and rugged environments, has a very loud and clear audio output, and is easy to operate. Holding an IP66 certification, the highest IP rated pager on the market today, the WatchDog is protected against dust and high pressure jets of water from all directions.