NEW IN BOX ESL 400 SERIES PHOTOELECTRIC SMOKE DETECTOR (449CSRT) Per United Technologies/ESL, the specifications are: Product Details Overview 449CSRT Smoke Detector, 400 Series Photoelectric, 4-Wire, Sounder, Aux. Relay, Heat, 12/24VDC, UL Detailed Description
This used Alpha Omega Instruments Series 3520 Trace Oxygen Analyzer is a portable, battery operated trace oxygen analyzer designed for industrial and commercial applications where accurate and reliable spot trace oxygen measurements are needed. Alpha Omega Instruments Series 3520 Portable Oxygen Analyzer features Alpha Omega Instruments long life ambient temperature electrochemical sensor. The enclosure is made from durable polycarbonate and is rated NEMA 1 for general purpose service.
The AD8232 Single Lead Heart Rate Monitor is a cost-effective board used to measure the electrical activity of the heart. This electrical activity can be charted as an ECG or Electrocardiogram and output as an analog reading. ECGs can be extremely noisy, the AD8232 Single Lead Heart Rate Monitor acts as an op amp to help obtain a clear signal from the PR and QT Intervals easily.
This unit works but needs a new motor back plate. We've already replaced the unit so this one can be yours. I'tll take a standard 2kw DC motor backplate.
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