Pneumatic level sensors.
The NLS NLS - Native Language System series of pneumatic level sensors The introduction to this article provides insufficient context for those unfamiliar with the subject matter.
Please help [ improve the introduction] to meet Wikipedia's layout standards. You can discuss the issue on the talk page. is designed for use in high-viscosity liquids and over 50,000 switch operations. They install quickly with a standard 1/2-in. pipe and G1 connection at the top of the tank. Suited for applications where electrical power is not available or hazardous conditions exist, they may be used in conjunction with the company's intrinsic safety Refers to inherently safe machinery, electrical and electronic systems that do not contain hazardous materials, high voltages, bare terminals or other potentially dangerous parts that can cause injury to a human. See safety. barrier to meet hazardous rating requirements.
STI STI systolic time intervals. Automation Products Grp., Logan, UT
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