Antique Bendix Friez Weather Instrument Microbaragraph - Rare Historic Item - Fair Condition - Parts Item Untested - See Photos, Don't Know Much About It - Normal Wear - See Photos - Measures 13" L x 10" H x 6 1/2" D ... Valuable estate sale discovery great collectible ... Item 85  ... Free Shipping 
 
The Bendix Friez Weather Instrument Microbarograph is a recording barometer that was used to measure and record changes in atmospheric pressure. It was developed by the Bendix Friez Instrument Division, a division of the Bendix Corporation. The microbarograph was first introduced in the early 1940s and was widely used by meteorologists and weather forecasters.
 
The microbarograph works by using a series of levers and springs to amplify the small changes in atmospheric pressure. The amplified changes in pressure are then recorded on a paper chart by a pen. The microbarograph chart can be used to track changes in atmospheric pressure over time, which can be used to predict changes in weather conditions.
 
The microbarograph was a valuable tool for meteorologists and weather forecasters, as it allowed them to track changes in atmospheric pressure more accurately than ever before. The microbarograph was also used by pilots and other aviation personnel to monitor atmospheric pressure changes, which could help them to avoid dangerous weather conditions.
 
The Bendix Friez Weather Instrument Microbarograph is no longer in production, but it remains a popular collector's item. Microbarographs are also still used by some meteorologists and weather enthusiasts today.