What surface characteristics are necessary for the device to get a measurement? Specifically, is it likely to read off of leaves at the top of a tree?
188190
the glr225 is no good in bright sun.buy a target to aim at or and old auto reg. plate works good in sun.i have aimed at the top of a tall tree and had a reading as long as the beam was on the wood and ambient light was very low (near dark )
188191
I've gotten accurate readings from carpet, drywall, brick, tree bark, glass, etc. It will definitely read off of vegetation, but since leaves move and may not present a surface perpendicular to the laser beam you'll most likely get "error" readings instead of a measurement much of the time. Also, because the visible laser spot is so small you'd be hard pressed to know exactly what point you were measuring to.
188192
Yes because it reads until the led gets. The measures are given in meters or feets, algo the equipment calculate the area.
2106836
Probably...the difficulty is going to be getting the sensor to be able to read something that is not static....but, will give you a general idea of the temperature, I think.
146503
This tool has one vertical laser and one horizontal laser. But by shooting the vertical beam up the center of the tree you should be able to tell how straight it is. I recommend doing this while it's kind of dark out so you can see the beam clearly.
404758
I had similar hopes for the device, but it's not quite as magical as that. If a flashlight won't go through it, chances are heat radiation won't either. Mist and fog are an exception due to a quirk of water molecule resonance in the wavelength of 8-12nm. (I think I remember those numbers correctly). Woods are tricky because the branches all blur together and it's hard to make out even a raccoon through much brush at all. No dice on walls. You might be able to spot a critter hiding in a tree, but the auto-exposure wigs out a little when you look up at the sky.
1972971
We have large trees 30 or so feet away from the senor on driveway. We did have to adjust the sensor downward so it wouldn't pick up excessive tree motion. This was in strong wind. On a normal day, the trees wouldn't affect the sensor. Dogs walking across drive way can set the alarm off, so setting sensor down, it can still pick up tires as they drive by and alert you. It doesn't have to 'see' the whole vehicle.
916639
The GB does have a sensor. It does not pop up from leaves. The door sensor may need an adjustment.
499949
No it measures surface temperatures. It's a laser, so it only travels as far as the light will allow it.
1964715
Hmm good question. It will probably pick up the leaves and maybe the blossom possibly the pebbles.
591845
I would not say the screen display is bright like a TV screen. That would take a lot of battery power and shorten the surprisingly long battery life this tool has. It's easy to read if the environment is well lighted though.
421917
I don't have any official specs for you. I can describe it the best I can. I have it on a tree 7 ft off the ground. 150 to 225 ft straight out the detail is pretty impressive. Fifty feet straight in front of the camera will reveal about 100 feet width side to side maybe a little more. You can set the megapixels from 2 to 8 to fit your range and detail requirements. I'll say this, I'm very pleased with this product. I've had it over a year withNo problems. It just wants batteries now and then, other than that I don't have to see or touch it
276217
I have used it to measure soil moisture in our lawn, around trees and just about everywhere else. I believe it to be very accurate. I bought it because I found that the soil moisture gauges in the nurseries around here were not accurate. Of course, the accuracy depends on following the directions that come with the meter so assure accuracy. I have found the device to be accurate and useful. I would not give it up.
519918
if there is an item ( my case a deer or a target ) it is very accurate but a friend was looking for a distance to a spot in a field and it had nothing to bounce the signal off so it wouldn't work. the item has to be vertical and substancial.
2270932
Yes, you just need to be able to stop the laser beam as close to the peak as possible and have it record that measurement from the base. You can even do it by standing on the ground if the roof is too steep to climb. (I wish I could draw you a picture showing how I would do this.) Using creative problem solving skills will be helpful and then those basic geometric formulas will help for a final estimated calculation. Good luck!
1105854
Ryan, I think this scope should work well for you for that application. I think you will want a sine/square wave signal generator of some sort as well, so you can get a periodic signal you can see clearly on the scope.
1797873
I strongly doubt it. Since it depends on suction, it needs a smooth, non-porous surface and the detector only works when it can "see" the incoming radar/laser signals.
2189693
I use it for trees. In our area, most of the tree roots are only 18-22 inches below the surface. So, with the 24" probe, getting soil moisture readings at the root zone is not a problem. Just be sure to take several readings around the tree, at or slightly beyond the dripline of the tree (the outer canopy).
447114
I have the sensor nailed to a tree about three feet off the ground. It is very sensitive. I think installed at an angle above the garage would work. The receiver in the house works very well and beeps three times everytime something passes the sensor, could be a car, animal, or garbage man. Do not put the receiver near metal like a microwave it seems to block the radio waves. Also when the transmitter is rained on sometimes you get false readings. I put a plastic shroud over the top made from a yogurt container. Overall I am very pleased with the product and for the price it is a very good value. I highly recommend this product. I have the sensor nailed to a tree about three feet off the ground. It is very sensitive. I think installed at an angle above the garage would work. The receiver in the house works very well and beeps three times everytime something passes the sensor, could be a car, animal, or garbage man. Do not put the receiver near metal like a microwave it seems to block the radio waves. Also when the transmitter is rained on sometimes you get false readings. I put a plastic shroud over the top made from a yogurt container. Overall I am very pleased with the product and for the price it is a very good... » Read More I have the sensor nailed to a tree about three feet off the ground. It is very sensitive. I think installed at an angle above the garage would work. The receiver in the house works very well and beeps three times everytime something passes the sensor, could be a car, animal, or garbage man. Do not put the receiver near metal like a microwave it seems to block the radio waves. Also when the transmitter is rained on sometimes you get false readings. I put a plastic shroud over the top made from a yogurt container. Overall I am very pleased with the product and for the price it is a very good value. I highly recommend this product. « Show Less