Based on requests and input from treasure hunters for a detector optimized for location of deeply-buried relics, the engineers worked on combining technology found on their consumer and military models with the result being the RH Pro.

The RH Pro can be setup with the control housing in one of two configurations — attached to the shaft or hip mounted. Surprisingly, with the mounting point of the control box and search coil, the RH Pro is well-balanced even without hip mounting the housing. This shows that the engineers had listened to actual users during the development phase since many relic hunters spend their in-field time searching overgrown areas and tend to dislike having to hip mount their detector to avoid getting the cables snagged on underbrush.

Three knobs (Sensitivity, Ground Balance and Discrimination) and five toggle switches control the RH’s operation. The RH Pro is a VLF-based detector with a unique three-position toggle switch labeled Operating Mode. The “S” mode enhances the detector’s sensitivity to smaller shallow targets while the “L” mode optimizes the RH response to larger, deeply buried targets. The “M” mode is designated as the one for general use. The ground balance circuit has both a Manual and Fixed mode and a corresponding knob used to make the necessary adjustments. The RH Pro also features two search modes — All Metal and Discrimination — and a non-motion Pinpoint mode. The last toggle switch turns the power on and off.

The standard search coil is a 15 inch Double-D design that ensures you receive complete ground coverage without the need to overlap each sweep unlike conventional concentric coils found on most other brands. It is an open coil which keeps the weight to a minimum and aids in pinpointing. The advantage of a Double D coil over a concentric coil is that sensitivity to small targets can be maintained even with coils as large as that on the RH Pro. At first glance the 15 inch coil might seem to be “overkill”; however, after spending sometime testing the response to targets ranging in size from coins to artillery shells, it is a size well-suited for the RH’s  intended use. The only downside to the coil is that being open, it does tend to get caught on sticks or tufts of grass but there are aftermarket coil covers designed to address this issue.

The RH Pro is powered by a 12 volt Gel Cell battery contained in a small padded pouch. It is designed to provide 20 plus hours on a charge. The recharger allows you to keep the battery pack on a float charge for extended periods without damaging the battery or creating a memory typical on many other types of rechargeable batteries.

Design features carried over from their military detectors include the rugged connectors used on the search coil and battery cables, the composite housing and square shaft assembly. Through the use of these components, the RH Pro should provide years of reliable operation under even the most adverse conditions.