The Leica DISTO™ D110 is a 3 measurement mode LDM with a 60m range that is accurate to 1,5mm. It's small, weighing in at 92 grams with batteries, very easy to use, and the D110 sends measurements via Bluetooth making it -- by far -- the least expensive Bluetooth LDM available.
The ability to send distance and area measurements to mobile apps as you take them makes the D110 the ideal tool for generating estimates, or inputting accurate interior measurements into modeling software on-site.