rangefinder

British  

/ ˈreɪndʒˌfaɪndə /

noun

1. an instrument for determining the distance of an object from the observer, esp in order to sight a gun or focus a camera

2. another word for tacheometer

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Example Sentences

Mr Rowe added that the service will move to ban rangefinders - devices which measure distances between the user and a fixed distance - at future events.

From BBC

One officer took a photo and radioed to others that he had seen a man peering through a rangefinder - a device hunters use to measure distance to a target.

From BBC

A counter sniper flagged a suspicious man using a rangefinder to the US Secret Service some 20 minutes before the attack started, according to members of Congress briefed by law enforcement this week.

From BBC

After collecting data about the tree’s width, Van Pelt grabbed his TruPulse 200X laser rangefinder to measure the height and crown spread, and the length of the longest branch.

From Seattle Times

The XM5 and XM250 will both use the XM157 Fire Control system that integrates a number of technologies, such as an increased magnification scope; laser rangefinder; ballistic calculator, and other systems, Army officials said.

From Washington Times