Callaway 300 Pro Laser Rangefinder
- 5 to 1000 yard range
- +/- 1 yard accuracy, yards or meters
- 6x magnification
- Pin lock up to 300 yards with P.A.T.
- Slope mode with an on/off button
- Audible chirp on pin lock (Birdie feature)
- Water and fog resistant
Last refreshed Jun 22, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A slope laser for golfers who want adjusted yardage on hilly courses and a switch to turn slope off for events. The battery is listed both as included and not, so carry a spare.
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ASIN: B01KP195PYModel: 300 ProCategory: Golf Range Finders
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Overview
A laser with slope compensation measures the angle up or down to the flag and shows an adjusted distance on the screen. Pin Acquisition Technology locks onto the flagstick even with trees or hazards in the way, and a chirp confirms the lock.
Slope adjusted yardage and an audible lock confirmation take guesswork out of club choice on hilly courses. Pin lock reach is shorter than the full ranging distance, so very long flag shots may not lock.
Who it's for
Weekend players on courses with elevation changes, and newer golfers learning club selection. Golfers who want satellite course maps or green numbers without aiming need a GPS device instead.
Pros and cons
- Slope mode with on/off switch
- Audible chirp confirms pin lock
- Locks the pin with hazards in the way
- Yards or meters selectable
- Pin lock reach shorter than full range
- Battery inclusion listed inconsistently
- Scan mode not listed
- Slope must be off for tournament play
Performance notes
Distance readings depend on a steady hand and a clear line to the flag, which decide how fast the laser locks. Pin Acquisition Technology is built to single out the flagstick when trees or hazards are in the way, and the slope reading adjusts that distance for the climb or drop.
Specifications
| Brand | Callaway |
|---|---|
| Model | 300 Pro |
| Dimensions & fit | |
| Item weight | 0.5 pounds |
| Item Dimensions L x W x H | 4 × 2.7 × 1.4 inches |
| Capacity & performance | |
| Measuring Range | 5 to 1000 yards |
| Pin lock range | Up to 300 yards |
| Power & efficiency | |
| Battery Description | Lithium CR2 |
| Construction & materials | |
| Material Type | Rubber |
| Color | Red |
| Warranty & support | |
| Warranty Description | See manufacturer's website |
| Other details | |
| Magnification Maximum | 6x |
| Water Resistance Level | Water and fog resistant |
| Accuracy | +/- 1 yard |
| Distance units | Yards or meters |
| Slope function | Yes, can be turned off |
Frequently asked questions
How big is the Callaway 300 Pro rangefinder?
It measures 4 x 2.7 x 1.4 inches and weighs 0.5 pounds, and it comes with a hard case.
Is the Callaway 300 Pro legal for tournaments?
Yes, with slope turned off. The slope function switches off with a button, which Callaway says makes it legal for tournament play.
Does the Callaway 300 Pro come with a battery?
The included components list a CR2 battery, but another spec line says batteries are not included. Have a spare CR2 lithium battery ready.
Is the Callaway 300 Pro a GPS rangefinder?
No. It is a laser rangefinder that measures to what you aim at. No course maps are listed.