The compact Extech 250 allows users to quickly check for the presence of live wires in tight locations with a built-in voltage detector.
The Extech 250 has compact size that allows its user to quickly check for live wires small areas. Multimeter functions include AC/DC voltage, resistance, capacitance, frequency, temperature, duty cycle, diode, and continuity. The meter has a 1.2" (30 mm) jaw opening for conductors up to 500 MCM. Other features include a built-in non-contact voltage detector with an LED alert, auto power off to conserve battery life, and a relative mode for capacitance zero.
|Image||Part #||Product Description||Price||Stock||Order|
|MA250||200A AC clamp meter + NCV||
|Drop ships from manufacturer|
|MA250-NIST||200A AC clamp meter + NCV, NIST traceable||
Drop ships from manufacturer
Researchers face many difficulties. Assessing the ecological health of large geographic regions, especially those with a low population and few research facilities, is one of the many challenges scientists face. One such region is the Ottawa River in Canada, nearly 800 miles long with an overall drainage area of 55,000 square miles. Not only is it vast, but there are few human inhabitants and few research outposts. While gathering representative water samples in such a region is difficult enough, there is also the challenge of responding in a timely manner when problems arise.Read More
According to the Environmental Protection Agency (EPA) , agriculture is the leading probable source of impairments to assessed streams and rivers in the United States, and the third probable source to lakes. Agricultural impairments, typically considered nonpoint source pollution, include irrigation and stormwater runoff that carries animal waste, bacteria, fertilizer, naturally occurring metals, nutrients, pesticides, excess salt, and sediment. Unfortunately, this has at times positioned farmers—a group which has the most to gain from water quality initiatives—at odds with environmental agencies and scientists.Read More
Although the Environmental Protection Agency (EPA) and other agencies have already answered this question by setting guidelines for E. coli limits in water used for recreational purposes, the question is again being debated in Los Angeles. This is because the city adopted a new protocol in October of 2017 that mandates closing the Los Angeles River to recreational users whenever E. coli levels are too high. E. coli in the Los Angeles River The City of Los Angeles approved the new river protocol which was developed by the City of Los Angeles Department of Sanitation (LA SAN), the Los Angeles County Department of Public Health, the City of Los Angeles Mayor’s Office, the Mountains Recreation Conservation Authority, and the Los Angeles County Department of Public Works.Read More