How accurate is it really at 12 feet doing the 180 degree test? (set plumb mark dot on floor and ceiling turn laser 180 on same point see difference)
258316
Dead on @ 12 feet, I have used it on 60 foot with confidence. Better than 3-4-5 , how else will you square it? Measure corner to corner after you do it for trueness. Worth every penny. my 2 cents.
258317
I would say the Bosch laser is more accurate as it references off of the plumb line if you would. Definitely within .060" accuracy.
1777384
I have never calibrated mine and not sure how you would do it short of sending it back to factory. I have compared mine with several other test sets and also the system at my pool store and found it to be very accurate.
1694070
Agree with the comment about doing things just right. Mine is very accurate. I will say I messed around with it a bit in the beginning to see what would make it go astray. Generally speaking though it is very accurate. I have had no problems.
1626968
Mine is slightly off, perhaps 2-3 degrees. some have complained about that will cause elevation or windage adjustments to change too. Yes, that is correct to a point. Let's stay that worse case scenario, the turrets and reticle were canted 45 degrees off from each other. That would mean any elevation or windage would equally effect both. But for every 1 degree, that would only result in 1/45 of a change in the other. that equates to .02" for every inch of elevation/windage. So if the scope has 1/2" per click adjustment at 100 yards, One click of windage/elevation would result in (unwanted) .01" in elevation/windage movement with a reticle that was canted 1 degree off. Even at 5 degrees, that is still only .05" (1.2mm) at 100 yards. The point is if that small of an offset really matters to anyone, they should not be buying a $90 scope in the first place.
1191075
Installed mine in a 12 foot high ceiling fixture in the garage. It is not as sensitive as its predecessor but works OK. It has no external sensitivity or timing adjustments. On time is fixed at about ten minutes, but will stay on continuously if continued motion is sensed.
1986736
It'll give you a pretty accurate reading on the air coming out of the vent but it's probably reading off the vent itself. I use it on air vents in the house when servicing the ac to check air temps. It works pretty good. I don't know how you would make it focus just on air but I have compared it to a regular thermometer hanging in the vent & it reads within a degree or so to it. It definitely reacts faster than a regular thermometer. Just remember when reading something very close, it will be reading slightly lower than the laser sight because the sight comes out of the top of it.
1368655
The read out goes to 180 degrees. I have never needed a full 360 degree measure, but since it does go to 180 degrees, the other half of the circle would just fall into place. I use mine all the time. It really takes all the guess work away.
600398
Yes. As you probably know, simply adjust the flash head between 90 and 45 degrees for most any low-ceiling rooms. The light sensor is on the front of the flash body, not the head. This will allow the timing to be adjusted all the same, based on the return reading from the subject.
1286549
I use mine for floor to ceiling measurements all the time. in direct sunlight it cant read the laser.
1893233
I would suspect if your crimson laser is dead on, you won't see the flash of the laserlyte. But that in itself would be a very interesting exercise if it were me. I think the best thing it will do for you is help you pin-point the distances at which point your crimson laser becomes inaccurate. A mounted laser intersects the barrel at very specific distances. So if yours is dead on at say 20 feet, then the laserlyte trainer will show you how far off (if any) it is a 40 feet. It will definitely be off at some point. But at what distance and by how much. Be good info to know, and the laserlyte will provide you that feedback very quickly probably without even having to leave the house! I would suspect if your crimson laser is dead on, you won't see the flash of the laserlyte. But that in itself would be a very interesting exercise if it were me. I think the best thing it will do for you is help you pin-point the distances at which point your crimson laser becomes inaccurate. A mounted laser intersects the barrel at very specific distances. So if yours is dead on at say 20 feet, then the laserlyte trainer will show you how far off (if any) it is a 40 feet. It will definitely be off at some point. But at what distance and by how much. Be good info to know, and the laserlyte... » Read More I would suspect if your crimson laser is dead on, you won't see the flash of the laserlyte. But that in itself would be a very interesting exercise if it were me. I think the best thing it will do for you is help you pin-point the distances at which point your crimson laser becomes inaccurate. A mounted laser intersects the barrel at very specific distances. So if yours is dead on at say 20 feet, then the laserlyte trainer will show you how far off (if any) it is a 40 feet. It will definitely be off at some point. But at what distance and by how much. Be good info to know, and the laserlyte will provide you that feedback very quickly probably without even having to leave the house! « Show Less
391431
Yes! I have been measuring my boat canopy, which is 23' feet from the water onto a 1" aluminum tube. It will do longer distances, and best if you can do it in the shade or evening. Makes the laser red dot easier to see. What I found was not the fact, would it measure, but can I keep my hand still enough to keep it on target.
1888253
I'm not 100% sure that I understand your question. That said, based on what I think you are asking I will say this. You can put this device on the floor of the first floor and the line will shoot up on the wall of the second floor. That is, provided there is no ceiling separating the two floors and you are far enough away from the wall. The closer to the wall that you place this device the lower the line travels up the wall. The further away from the wall the higher up the wall the line travels. I do not know the maximum angle the laser travels. You might be able to get that from the Bosch's website. Once you have that you can do some basic trig to see how far up the wall the laser will shoot based on the distance it is from the wall....
321724
At least a quarter mile, however the greater the distance the larger the dot appears as well as faded. This tactical attachment is really designed for closer aim. Also if you adjust the laser for 20 yrds, it wont be accurate at 100 yrds. You have to continually site the laser for different distances.
1149952
This unit relies on a pretty concentric barrel end (be it muzzle, muzzle brake, or flash suppressor) to be maximally accurate. However, on a typical setup, it is definitely close enough to get you "on paper" reliably. This is especially true if you use their software to print weapon-specific sighting patterns. I recently sighted my 7mm Rem Mag to within 2 MOA at 200 yards. However, I have found that the part of the device that goes into the barrel is too short to actually reach the barrel with big muzzle brakes (like on my 338 Lapua). In that case, you're better off removing the brake and laser sighting, then reinstalling the brake. This unit relies on a pretty concentric barrel end (be it muzzle, muzzle brake, or flash suppressor) to be maximally accurate. However, on a typical setup, it is definitely close enough to get you "on paper" reliably. This is especially true if you use their software to print weapon-specific sighting patterns. I recently sighted my 7mm Rem Mag to within 2 MOA at 200 yards. However, I have found that the part of the device that goes into the barrel is too short to actually reach the barrel with big muzzle brakes (like on my 338 Lapua). In that case, you're better off removing... » Read More This unit relies on a pretty concentric barrel end (be it muzzle, muzzle brake, or flash suppressor) to be maximally accurate. However, on a typical setup, it is definitely close enough to get you "on paper" reliably. This is especially true if you use their software to print weapon-specific sighting patterns. I recently sighted my 7mm Rem Mag to within 2 MOA at 200 yards. However, I have found that the part of the device that goes into the barrel is too short to actually reach the barrel with big muzzle brakes (like on my 338 Lapua). In that case, you're better off removing the brake and laser sighting, then reinstalling the brake. « Show Less
234655
The cross lasers really won't help getting things square on the floor - though you might drop lines down from the side pointing lasers on the walls of the room in conjunction with the front laser line to do so. I have assumed those are for LEVEL more than SQUARE so I don't know the tolerances on them in reference to the front laser in that regard. You would assume that the manufacturere would endeavor to be quite accurate with that as well . Either way, this level is extremely handy and an almost setup free tool.
1563000
Have no problem with it, but did not check the accuracy. If you try to buy a level at the Home Depot it's also cheap and you get bigger level.
471249
I used a short term test like the one from First Alert to validate the readings in my basement and it came out accurate. Make sure that you carefully place the unit because placement can effect the readings. 25 is pretty high but certainly in the range of possible - don't ignore it !