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.
The PosiTector Dew Point Meter (DPM) is a hand-held, electronic instrument that measures, calculates and records. climatic conditions, quickly and accurately. It consists of a body. (Standard or Advanced) and probe (Built-In or Separate). This Quick Guide summarizes the basic functions of the Gage. Download the full instruction manual at: www.defelsko.com/manuals. The PosiTector DPM powers-up when the center navigation. button is pressed.