Keg Sentry is a self-contained draft beer monitoring system.  Unlike a cloud-based system, It requires no software, Internet access, or separate tablet or smart phone to monitor the status of a bars tapped draft beer kegs.   

Keg Sentry's processors require three values to monitor a beer tap:

  • A Pour Value, for example, a US pint, an imperial pint, or a half-liter pour. 
  • The pour value of the keg being monitored. For example 124-US pints for a full keg.   This number can be any number between one and 999.    

Keg Sentry's proprietary technology uses two sets of binary switches to program its processors instead of computer software. Referring to the lower left and right hand corners of the Monitor Module photograph, the two switches on the right are set to 14, which is the default value for a US pint, and the three switches on the left are set to 124, which is the number of US pints in a full keg. These three switches are also used to set a Low Level Alarm point.

Binary switch values are changed by pressing a small detent on the top and bottom of each switch with a ball point pen to increase or decrease the value of each number. The initial programming process takes about a minute for a new keg, and resetting the same size keg requires a few seconds to push two momentary push-button switches.

  • A user set, Low Level Alarm.

Monitor Module Installed in
DM1000 Single Kegerator Enclosure

  1. You pay for Keg Sentry once.
  • Cloud-based systems burden you with Monthly Recurring Cost (MRC) for as long as you own the system.  

Keg Sentry is a precision flow monitoring system, designed to provide bar managers with real-time information as to how much draft beer remains in each of their tapped kegs.  The Monitoring System has two component parts:  A Monitor Module (left), and an NSF approved Flow-Sensor (right). 

What Does Keg Sentry Monitor

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What is Keg Sentry

Keg Sentry's Repeatability is 1/3 of a Pint per Keg.   

Keg Sentry and most cloud-based monitoring systems use flow-sensors as a source for flow-rate data.  A flow-sensor, which is installed in the beer line near its keg, sends a sequence of digital pulses to it's monitor that are proportional to the amount of beer flowing through its small turbine: for example, 100 pulses per pint.

Flow-Sensors typically have a manufacturing tolerance of around ±3 pints per 124-pint keg.  In order to be competitive in the draft monitoring market, Keg Essentials feels that this tolerance must be reduced to ±1 pint per keg, which is no easy task.

Many cloud-based monitors require "test pours" to calibrate their systems.  This reiterative process requires that draft beer from a new keg be poured into a calibrated glass.  When the keg is emptied, any calibration error must be corrected by repeating this test pour process with additional kegs until the desired accuracy is achieved.  

Keg Essentials' found the answer to this time consuming process.  Keg Sentry can fine tune any Flow-Sensor error to 1% or less with a simple adjustment of its Pour Value Switch.  For example, if there are still three pints of beer left when the first keg blows, all you have to do is reset the 14 on the Pour Value Switch to 17, and that will automatically reset the monitor to operate within its 1% specification. The Pour Value Switch is designed to correct 1 pint per click for a 124 pint keg.


Click to Calibrate - No Time Consuming Test Pours Required