Our budget pick for a good but cheap golf rangefinder is the Nikon COOLSHOT 20, a USGA - compliant golf laser rangefinder with a range of 6 to 550 yards accurate within + / - 1 yard and 6x magnification. (geekwrapped.com)
Our top golf laser rangefinder picks all fall within 5x to 6x magnification, giving you a wide monocular view of what's ahead or behind. (geekwrapped.com)
It takes a 9V battery, which are often easier to find than the CR2 batteries commonly used in laser rangefinders. (geekwrapped.com)