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Laser Measure - which one to buy?

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MikeJhn

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Meant to add. Add a Chartered Building Surveyor I never leave home without mine.
The smallest cheapest Leica works for me. In particular, its ability to take maximum and minimum measurements across a room is invaluable for catching those wonky rooms. (Which is all of them)
You won't regret buying a quality one.
I suppose that's the difference between a Chartered Building Surveyor and a Chartered Structural Engineer, laser measuring is accurate enough for one, but not the other.
 

Spectric

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Hi

If you think of the laser measure as a fancy tape measure and use it only where you would use a tape measure then it is accurate but not as accurate as a steel rule. Lasers are far more useful when they project lines onto walls and ceilings, so much better than the water level.
 

Ollie78

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This is probably an incredibly dense question, but how do you measure external corners ? Do you have to stick a little marker on or something ?

Ollie
 

Nelsun

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Got a used (but hardly used at all) Leica Disto D2 off the bay for just over £100. It has a handy thing where it takes constant measurements. You can take a lot of guess work out of getting accurate readings where you can't be sure you're spot on level - you just use the shortest measurement. Makes a great cat toy too!
 

Bristol_Rob

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I suppose that's the difference between a Chartered Building Surveyor and a Chartered Structural Engineer, laser measuring is accurate enough for one, but not the other.
Exactly, British Standard tolerances are very different for both.
You make an excellent point worthy of genuine consideration by OP.
What tolerance is he trying to achieve as the Leica may be unnecessary. (Or not good enough and have to go up the range or elsewhere)
 

Bristol_Rob

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This is probably an incredibly dense question, but how do you measure external corners ? Do you have to stick a little marker on or something ?

Ollie
The Lecia has a minimum & maximum setting. It shoots the laser out taking constant readings and depending on the setting you choose gives the longest or shortest reading. You merely sweep the corner slowly with the laser.
 

Ollie78

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I see, I was imagining that you would measure while right next to the wall as with a tape measure, so the laser would be firing off to infinity.
So, you sort of step away a bit and it does the maths? Its cleverer than I thought.

Ollie
 

Woodmouse

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I use the Stanley TLM99, which was a reasonable price and has done the job well. Not only does it do the usual measurements but it can also work out areas and volume.

As to accuracy it gives +/- 2mm, which for me was more than enough.
 

Rich C

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Be careful if you by a cheapie from Amazon. A lot of those that are advertised as ‘laser’ are actually ultrasonic measurement with a laser spot guide for aiming. That’s not to say that they’re bad, but if you specifically want a laser measurement device you are unlikely to find it in a £20 Amazon cheapie.
It's this one (actually the older 40m range version).
So far as I can tell its laser, but I'm not sure if there's any obvious way to check.

To add, I tried taking a measure with the laser covered but the main window exposed and it failed, which suggests it's more than just a laser pointer.
 
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