Huepar Dual Laser Measuring Tool, 393Ft Green-Beam Bilateral Digital Laser Distance Measure 6 Units Ft/in/M, Rechargeable Laser Measurement Tool -Backlit LCD Display, Length/Area/Volume/Angle Sensor

I wanted a laser distance meter to do use trlateration and locate objects on my property and I didn't want to pay a surveyor. I have a 200' tape measure and it works fine, but is a lot of work to drag around and sometimes it is difficult to get the end to stay attached to an object. Also much of my property is hilly and wooded and I would rather not have to drag a measuring tape around. I wanted to give a laser unit a try and it needed to have excellent distance capability, at least 200'. This Huepar looked like it could get the job done.I got the Huepar because it has the longest range available, is rechargeable, and has an electronic level capability. It has all of the standard modes: distance, area, volume, cumulative area, and Pythagorean triangle measurements. You set the mode by pressing a button to cycle through the modes and an onscreen icon tells you what mode you are in. Also the icon has an indicator to tell you which measurements to make for the selected mode. Pretty simple to operate and you don't have to remember each sequence. The case seems very sturdy, a kind of rubberized plastic.I had serious doubts that the unit could actually measure out to 393' for two reasons. First the reflection of the laser spot would be pretty weak and this unit has the same class II laser as the others, and second holding the spot on target at that distance would be difficult. I tried measuring the distance to the back of my truck (silver color) and was able to get readings at about 104' in the daytime with overcast. Biggest problem was trying to keep the spot on the back of the truck while holding the unit freehand. I tried again at night and tried useing a brace to reduce the wobble and was able to get out to 250', but only if I could keep the spot on the license plate. I could tell when I hit the license plate because the spot became much brighter. It only took a few fractions of a second for the brighter spot to give me a reading. (Update) I bought a unipod to help steady the unit and was able to measure out to 340' at dusk. Biggest problem was keeping the laser spot on the license plate. I think any farther and a tripod is needed. A problem is that pressing the button to start the measurement knocks the laser spot off the target, but there is a secret helper for that. One neat feature is the "delayed measurement", where you can start a timer programmable from 5 to 60 seconds and then the measurement is made automatically. So using a tripod and getting the beam on target during the delay, should be a piece of cake to get a measurement.As far as I can tell, the electronic level angle is only for information. It is not used in any calculations.Conclusions: A good unit and knowing what I know now, I would still buy it for my purpose. However I will need to use some kind of prismatic targets that bounce the laser light back to the unit. I don't think a white target will do the trick, because for extreme range I think you need something that reflects directly back to the laser unit. I bought some 60cm x 60cm stickers, but it will be difficult to hit them at a distance. With a tripod to hold the unit steady, it might be possible to hit that small a target (yes it has a female screw hole on the bottom for a tripod). Alternatively I have some old license plates I will try using because they are a much larger target.Update. I glued Picatinny rails to the side, attached a 4x rifle scope (~$25) to the side, mounted it on a light duty tripod (~$40). I zeroed the scope so that the laser beam was parallel to the scope crosshairs. With the scope and tripod, I am able to hold the laser spot on a license plate at 400 feet. I made three measurements and got 404.17', 404.16', and 404.16' on a heavily overcast day with the license plate as the target. At that distance a good retro-reflective material is needed to get enough signal back to the laser receiver.Excellent repeatability, but I can't speak to the accuracy yet. But very pleased with the results.

I have a Bosch unit and it works great. For work, I use it to help draw building plans, but the one disadvantage with the Bosch unit is the single laser measure. I need to walk to two walls and place the unit against the wall to take necessary measurements. I purchased this bidirectional unit and love it. I simply go towards the center of the room take a measurement turn the unit 90 degrees and take the next measurement-boom- done - for that room. Much faster and easier than the Bosch unit. I really like having the angle display that gives feedback to ensure the measurement is level and most accurate. The green laser dot is bright.A few improvements I wish for: 1. A vibrate feature when a good measurement is taken ( level and reading were good). Sometimes I'm in a position that I don't have direct access to the screen when taking the measurement so I have to check to see if the measurement is good. 2. Belt clip come on! there is a 1/4-20 screw hole for mounting just include a belt clip. 3. When taking measurements, once a second measurement is taken, the first disappears off the screen. Yes it can be recalled with a couple of button presses, but having it hang on the screen in a smaller font would be helpful.Beside those requests the unit is build well and has great features. Highly recommend.

Served my needs well. I used it right away upon arrival to measure a room for the right size window air conditioner unit and didn't have anyone to help me like I would have needed with a tape measure. Easy to use I didn't need anyone's help to measure with this device. Worth the cost. Quick readings. Easy to use and read. I've never used one before but it seems to be accurate ..it worked for my need. Has a bright easy to see led display. I liked the all in one design so you don't have to buy everything you need separate to get a room measuring because you shouldn't have to go through all that hassle and expense for a simple room measurement.