The Hawaiian Volcano Observatory celebrated the 30th anniversary of Mauna Loa's last eruption (in 1984) on March 25, 2014, underscoring that it has been a realtively quite 3 decades at the world's largest active volcano.
A tiltmeter, is a type of instrument used to detect any kind of tilt in the structure to which it is attached. Most tiltmeters use an air bubble in a liquid-filled tube, much like a typical carpenter's level, but are equipped with sensitive electronics that can detect even the tiniest change in tilt. They either sound an alarm or transmit the data to a remote monitor or other device.
Zeiss VISULENS 500 Digital Lensmeter. The ZEISS VISULENS 500 is a simple, easy to-use automated lensmeter designed to speed up your practice efficiency. The instrument helps you to spend more time on customer and patient consultation or simply to increase your throughput. It will support you by checking correct lens centration in order to insure accuracy.