Model 670 Fume Hood Monitor

Ensures Proper Fume Hood Performance

The MODEL 670 Fume Hood Monitor continuously senses air flow through the face of the fume hood, ensuring safe levels of fresh air are exhausting. The 670 provides a highly accurate hot wire sensor to detect very low flows common on fume hoods. The Model 670 comes with everything required to quickly install the unit including a mounting bracket, 24" of tubing for connecting to the inside of the hood wall and a 120 Volt AC power adapter.

Product Applications

  • Fume hood ventilation monitoring

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

COVID-19 Update: Due to high customer demand, lead time on some products may be up to two weeks. While this is a developing health situation, we are working continuously to take the necessary measures to ensure that the products you need are available with minimal interruption.

Model Description Usually Ships* Price Code Order
Ships: Next Day
Price: $501.00
Fume hood monitor. Next Day* $501.00 B Order


Fume hood face velocity air flow.
Alarm Range:
30-400 FPM (0.15-2.0 m/s).
Alarm Indication:
Red LED & audible alarm.
Low Air Velocity Alarm Delay:
Fixed 5 secs.
Visual LED Display:
Red: Alarm; Green: Normal.
Horn Silence:
Yes, temporary and permanent.
Face velocity ±10%.
Temperature Limits:
Operating temperature: 55 to 86°F (13 to 30°C). Storage temperature: -40 to 150°F (-40 to 65°C).
Power Requirement:
15 VDC 500 mA; 120 VAC, 60 Hz power transformer included.
Relay Output Low Air Flow Alarm:
5 A @ 250 VAC.
Relay Input for Night Setback:
2 wire rated for 24 VDC usage.
Sash High Indication:
Using a two wire micro switch or 3 wire proximity switch input, rated for 24 VDC usage.
Semi flush, flush or surface mounted when using included bracket.
5.0 oz (141 g).
Agency Approval:


  • Flexible surface or flush mounting
  • LED safe and alarm status indicators
  • Audible alarm
  • Sash alarm input
  • Night set-back input

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