Yardage Master Pro

The catalog title does not identify a manufacturer or model number that can be independently matched to a current product page. Because the description only confirms slope compensation and a digital readout, ask for the manual, range rating, battery type, and certification before treating any other specification as verified.

Under USGA Rule 4.3a, distance devices may be allowed, but players must not use slope or elevation functions during a round unless the competition rules change that requirement. The safest tournament setting is to disable slope and confirm the committee's local rule. [USGA distance-device rules](https://www.usga.org/RulesFAQ/rules_answer2019.asp?FAQidx=275&Rule=0&Topic=14)

It estimates an adjusted playing distance by accounting for uphill or downhill elevation rather than showing only straight-line distance. It does not measure wind, guarantee carry distance, or replace club selection, and the Yardage Master Pro listing does not provide a verified calculation range.

Confirm the maximum flag range, minimum target distance, accuracy tolerance, display units, battery or charging method, water resistance, and whether slope can be switched off. Those details matter because the listing names no verified SKU, and rangefinder claims can differ sharply between models.