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Air Velocity Monitors | Model 660
The model 660 air velocity monitors are a practical, affordable way to continuously monitor for safe air flows through laboratory fume hoods.
They are typically installed in the fume hood side fascia and connected to the interior sidewall via 1-1/8" flexible tubing. As the exhaust fan draws air through the device, a sensitive constant temperature thermistor measures flow and lights a green (normal), yellow (high) or red (low) LED.
An audible alarm also warns of low flow and requires manual resetting. Mounting holes fit standard single gang electrical box.