Imperialism in the U.S. Essay ... DBQ 15 Imperialism is the policy of extending the role of authority of a nation over a foreign country, usually in material gain, Military expansion and Economical reasons. In the late 1800âs and early 1900âs, the United States went through an era of imperialism.
Portable gas detector. A gas detector is a device that detects the presence of gases in an area, often as part of a safety system. This type of equipment is used to detect a gas leak or other emissions and can interface with a control system so a process can be automatically shut down.
Economical construction saves users more than 50% on calibration gas, replacement sensors and maintenance Four-year sensor life means detector lasts 60% longer than the industry average Unit uses 50% less calibration gas per minute than the average detectors within the industry