There are several key factors to consider when choosing a golf rangefinder for a tournament:

1. Rules compliance:

Ensure that the rangefinder complies with the rules of the tournament; some tournaments may prohibit the use of devices with slope compensation.

2. Accuracy:

Choose a rangefinder with a high degree of accuracy to provide reliable distance measurements and ensure that target distances can be accurately assessed.

3. Ease of operation:

The device should be easy to operate and quick to respond so that data can be acquired quickly during a race.

4. Target locking function:

The ability to quickly lock on to a target, especially in complex environments, can help players measure distances more accurately.

5. Optical Magnification:

Some high-end models offer a magnification feature that allows users to see distant targets more clearly.

6. Waterproof and Durable:

The durable and waterproof design ensures that the device can be used stably in different weather conditions.

7. Bluetooth or GPS connectivity (optional):

While there may be strict limitations on these features in competition, connectivity can be used for training and data analysis.

Choosing a golf rangefinder that can fulfil these conditions will help to improve performance and confidence in the game.