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Smart Sensor AR8100 – Portable Digital Oxygen Meter, 25% with Temperature Measurement

$86.70
A gas detector is a device that detects the presence of gases in an area, often as part of a

TM-G100 Fiber Optical Power Meter -70+3

$15.00
Features: High sensitivity, big dynamic range and High Precision. Designed for SC, FC, ST connections. It can easily and accurately