The Callaway 300 PRO Laser Rangefinder User Manual provides setup, operation, specifications, maintenance, and troubleshooting instructions.
The Callaway 300 PRO Laser Rangefinder is a compact, water‑ and fog‑proof device that offers 6× magnification, a 5‑1000 yd range, and slope measurement with P.A.T. (Pin Acquisition Technology). It uses a CR2 3‑Volt lithium battery and displays distance, unit, and angle on an LCD screen.
This manual covers battery installation, basic and advanced measurement modes, slope function usage, operational notes, maintenance steps, troubleshooting tips, warranty information, and safety warnings. It guides users through powering the device, adjusting diopter, switching units, and using P.A.T. and scanning modes.
| Dimensions | 4" x 1.4" x 2.7" |
|---|---|
| Weight | 5.4 oz (155 g) |
| Battery | CR2 3‑Volt Lithium |
| Display | LCD display |
| Magnification | 6X |
| Maximum Range | 5‑1000 yd |
| Range to Flag | 5‑300 yd |
| Accuracy | ± 1 yd |
| Slope Measurement Range | -89° to 90° |
| Unit of Measure | Yards / Meters |
| Weather Resistance | IPX3 (water/fog proof) |
Lift the hatch tab, turn counter‑clockwise to open, remove the protective plastic cover, replace the CR2 battery, then replace and tighten the battery cap.
With the device powered off, hold the Mode button for three seconds; the display will show “Y” for yards or “M” for meters.
The slope function must be turned off (red position) for the device to be tournament legal; turning it on (green) makes it illegal.
It uses a CR2 3‑Volt lithium battery.