courtesy Ridgid

I just finished exploring Ridgid’s new Bluetooth model LM-400 laser distance meter, which costs $200 and uses free iOS and Android apps to expand its versatility. It has a full quiver of standalone features, which means it can do everything from calculating square or cubic feet to reading slopes. It’s dust-proof and splash-proof, can mount to a tripod, and has a backlit display, an erasable memory, and a timer.

My iPod Touch easily downloaded the Ridgid Sketch app and quickly paired with the LM-400 via Bluetooth. It took me just a few minutes to view a concise illustrated guide within the app. I think Ridgid is on the right track with this app. For instance, it allows you to draw a right-angle room plan with a finger, and then use the LM-400 to shoot...

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