User settable high or low limit (30 to 130dB) indication with output to drive external relay module Microphone rotates 180° for desired placement Meets ANSI Type 2 and EN 60651 accuracy specs compliant to OSHA When the sound level exceeds the HI set point the RED LEDs flash and can be seen from 30m 100ft Air Velocity/Air Flow meter with telescoping probe designed to fit into HVAC ducts and other small openings
Test-meter.co.ukHot wire anemometer with telescoping probe. Datalogger records 20M air velocity/temperature readings. SD card storage. Type K/J thermocouple input. 7.05ft probe length. HVAC and environmental analysis metre.
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