KegWorks - Tools for Drinking KegWorks - Tools for Drinking

You have no items in your shopping cart. is fully open for business. The health and safety of our staff and customers is our highest priority.  LEARN MORE is fully open for business.

At KegWorks, the health and safety of our employees, their families, and our customers is our highest priority. As the coronavirus (COVID-19) situation evolves, we want to assure you that we are taking appropriate measures in accordance with the CDC and guidelines set by local and federal agencies. is fully open for business. At this time, our warehouse will remain fully staffed in order to maintain our fulfillment promises.

For those in the Buffalo, NY area, Local Pickup service has been suspended until further notice.

Learn More ×
Perlick - ITEM # 43739AV

Perlick Inline Empty Keg Sensor - Stainless Steel

Roll Over Image to Zoom

Click to View Larger


In stock and ready to ship.

No one likes wasted beer or foamy kegs. This sensor detects an empty keg and shuts down beer flow, eliminating foam and unnecessary cleaning.


    This Perlick Inline Empty Keg Sensor, similar to a FOB, or Foam on Beer detector, eliminates the froth on beer that comes when one keg is empty. It also allows for immediate pouring of beer when a new keg is tapped.

    For commercial or residential tap systems, money is saved when the beer line is more efficient. This keg sensor shuts off the beer flow immediately when a keg is empty. This sensor will pay for itself within a few kegs after purchase. You’ll no longer have to waste time, beer, and money by pouring out glasses of foam each time a keg is switched.

    This item upgrades on and eliminates the need for a wall-mounted beer FOB. It requires less frequent cleaning and its stainless-steel design is much more durable than standard plastic FOBs.

    Perlick, a family-owned business since 1917, provides award-winning products that optimize energy use and increase durability to help their commercial customers maximize the profitability of their beverage service operations. Perlick also provides residential products for beverage systems, undercounter refrigeration, and brewery fittings.

    • Also known as a FOB (Foam on Beer) detector
    • Stainless steel design
    • Shuts down beer flow immediately when keg is empty
    • Save beer and eliminate foamy keg pours

    Free Expert Support


    Contact Customer Care
    • 5/8" Standard Beer Threading
    • Stainless steel
    • 4 7/16" Height
    • 14-40 PSI Operating Pressure
    Product Manual
    Shipping & Delivery

    Related Products
    Customer Reviews
    1.0 / 5.0
    1 Review
    5 Stars
    4 Stars
    3 Stars
    2 Stars
    1 Star
    3.0 / 5
    3.0 / 5
    Would you recommend this product?
    No. I would not recommend this product. (1)
    Would you recommend this product?
    No. I would not recommend this product.
    3 / 5
    3 / 5
    Didn’t work for my application...
    What I had to figure out the hard way is this device doesn’t work well for a typical residential kegerator— not enough vertical clearance and I discovered after-the-fact that it requires a vertical installation to be functional. I ultimately returned it, but am out shipping costs for both directions..., over 25% of the cost. Very disappointed with this experience and will be reluctant to order in the future. Would definitely not recommend this product for “typical” home kegerators. Conceptually a great idea, but impractical.
    January 22, 2019
    1 year ago
    Response from Kegworks
    Hi Charles, thank you for taking the time to leave your feedback. I see that you asked a question about installing this in a home kegerator and I apologize that we didn't get back to you with an answer in time to allow you to make an informed purchasing decision. We are going to refund you the shipping cost of your original order. Please look for an email from our customer care team with more information and if you have any further issues, please don't hesitate to contact us. Thank you for being a KegWorks customer and I do hope you consider giving us another chance to exceed your expectations. Cheers!
    January 24, 2019
    Vicky S
    Questions & Answers
    Start typing your question and we'll check if it was already asked and answered. Learn More
    Browse 1 question Browse 1 question and 3 answers
    Appears you need significant clearance between the keg coupler and ceiling of a typical home kegerator, so maybe the Perlick Inline Empty Keg Sensor doesn’t work for a home kegerator? I’d love to have this feature if there was a way it’d fit.
    Chuck on Dec 28, 2018
    BEST ANSWER: Hi Charles, The manufacturer does not recommend that the keg sensor be mounted horizontally. There are actually two mounting options, either keg mounted or wall mounted. I consulted with our draft system expert here and to install it in a kegerator you would run a 3/8" ID vinyl beer line jumper from the coupler to a wall bracket that has the EKS mounted to it. Below is a link to the install manual from the manufacturer for more information. Hope this helps!
    Wall Bracket w/ Male Beer Thread - Stainless Steel
    Wall Bracket w/ Male Beer Thread - Stainless Steel
    Jockey Box Beer Line Jumper - 3/8
    Jockey Box Beer Line Jumper - 3/8" ID - 5' Vinyl Hose w/ Connectors
    Recommended Products

    About Backorders

    This item is currently out of stock but we're expecting more soon.

    For an estimated ship date, please contact Customer Care at 877.636.3673 or email

    Click here for additional shipping information.