Stanley Smart Measure Pro is a smart tool that attaches behind the phone and connects to it via Bluetooth.
After the calibration of the laser, which takes about ten minutes, you get access to 2 measurement options:
Straight line laser measure.
Software that uses an image to measure the total square metres of surface area. Available for iOS and Android.
Pros:
Don't need to write measurements;
Very accurate;
See the measurements directly on the phone screen;
Can export the measurements in PDF and JPG;
Measurements up to 137 m
Affordable price: $127.99
Cons:
Can't freeze the measurement on the screen.
Inside can't get the correct distance because have to look at the screen to read the measurement, so it can't measure the space behind you.
