Launch monitors at home: measure the room first

A launch monitor used to be a fitting-bay machine costing as much as a car. Consumer units now sit in the price range of a driver, and in a country with a five-month season they answer a question Canadians ask more than most: what do I do between November and April?

What is measured and what is modelled

Radar units track the ball in flight and calculate the rest. Camera-based units photograph the ball and club at impact and measure more directly. Either way some numbers are measured and some are modelled, and manufacturers rarely draw a clear line. Carry distance and ball speed are reliable on almost everything; spin axis, club path and face angle vary considerably.

Indoors is the Canadian use case

Most buyers here will use the unit in a basement or garage, which favours camera-based systems: radar wants several metres behind and in front of the ball that a basement does not have. Check the space requirement before the price, because it eliminates half the market for most houses.

The three numbers worth caring about

Carry distance tells you which club to hit and is the most valuable thing an amateur can learn. Ball speed tells you whether a change actually added speed. Launch angle with spin explains why your drives balloon or run out.

The honest caveats

Numbers off a mat differ from numbers off turf, and a heated basement in January is not the air of a course in July. Cold air alone costs several yards. Use the device to compare clubs against each other rather than to fix absolute distances you will quote on the first tee in May.

Where they genuinely help

Three uses justify the purchase: building a carry chart for every club; testing whether a swing change did anything measurable; and winter work with feedback, which is the difference between arriving in May sharp and arriving rusty.

Where they do not

A launch monitor will not tell you why your club path is out to in, and chasing those numbers without a coach is how Canadian golfers spend a winter building a compensation that shows up in June. It will not fix the short game or putting either.

What to check before buying

Measure your space first. Check what is measured rather than calculated at your price point. Look for a software subscription, a recurring cost the sticker price does not show. And try one first: Golf Town has units in store, and indoor centres and domes rent bay time by the hour with a monitor included.

Panxis Golf has no commercial relationship with any manufacturer or retailer and takes no commission.

Before you spend

• Measure the ceiling height and the depth of the room. That decides more than the budget.
• Rent bay time for an hour and build a carry chart. That may be all you wanted.
• Check for a subscription before comparing prices.

The device is a measuring instrument, not a coach.