The Wheeler Digital Trigger Gauge

“Wow, what a light trigger!” This is something people exclaim while having no idea what the actual weight is. It may seem like triggers often go by personal preference and feel. However, knowing the specific weight of a trigger can help more than you may think. Before buying a trigger and dropping it into a firearm, especially a precision rifle, you need to know your preference of trigger weight. Having a digital gauge can find that preferred weight in seconds. The Wheeler Engineering Professional Digital Trigger Gauge ha a large easily readable screen, averages out your trigger pulls, and comes with adapters for different triggers.

Wheeler Professional Digital Trigger Pull Gauge Specs

Showing the live reading, the average reading, the last reading, and the light up display on the gauge.
The Wheeler Digital Trigger Gauge has an easy-to-read display that lights up in low lighting. It displays how many readings have been taken, the last reading, the average reading, and the live reading.

Featuring an over-molded design with soft-touch buttons, the Wheeler Professional Digital Trigger Gauge accurately measures the pull weight of your firearm trigger, allowing you to make precise adjustments to your trigger—without the need to visit a gunsmith. Compatible with pistols, revolvers, rifles, and shotguns, this trigger gauge measures pull weights from 0 to 12 lbs., allowing you to determine how much you want to adjust your firearm’s trigger pull weight, and is compatible with both right- and left-handed users. Plus, this trigger gauge features a collapsible arm for safe, convenient storage and allows the load sensor to contact the trigger directly for improved accuracy and quicker readings.” -Wheeler

Price: $66.99

  • Over-molded construction
  • Soft-touch buttons
  • Audible indicator tone
  • Compatible with most firearm platforms
  • Ambidextrous design
  • Collapsible measuring arm

Main Noticed Features

The Adapter

The goal with a trigger pull gauge is to press straight to the rear. This means that the sensor on the gauge has to sit on the trigger evenly and without slipping as force is applied. A poorly designed sensor means inaccurate trigger pulls.

This is the only trigger pull gauge that I have seen that gives two different trigger adapters on the gauge. At first, I thought this was silly. However, it totally makes sense and is very useful. The gauge comes with a curved trigger sensor. It does not slip when tried on both curved and flat style triggers. The kit also has an adapter for bladed triggers that fits over the normal sensor. This is for triggers that have internal safety blades such as a Glock. The flatter adapter fills the space in the middle of the trigger to start pressing the bladed safety. If the adapter wasn’t used and you tried to use the normal sensor, that blade would not be pressed due to the curve on the sensor.

The adapter also has a place within the case so that you don’t lose it.

showing that the adapter for the trigger gauge sensor fits better over the trigger safety than without the adapter.
The adapter for the sensor on the gauge fits directly over the current sensor. This adapter allows for the sensor to fit better over triggers that have the safety bar on the trigger shoe. Here the Walther PDP has an internal safety bar on the shoe and with the adapter, I can have a flat press on that bar, giving me a good reading.

The Functions and Display

The display is massive and easy to understand, for good reason. This gauge allows for both live and peak functioning. Live allows the user to watch the weight go up before break and as it breaks. This can help with more trigger issue diagnoses. The weight shown also clears automatically once taken off the trigger, which is a nice feature if you want to restart the pull mid-pull (if you feel as though you messed up the current pulland don’t want to have to press another button to clear it out.

The gauge also shows averages, the number of pulls in all, and is super easy to use. I learned everything within four minutes of reading and using which is saying something. When taking a pull weight of a firearm it is best to take two to three pulls just in case one pull wasn’t taken properly. The gauge automatically takes the average of all of these pulls and displays it.

Now the best feature: if you feel that one pull during the three that are taken wasn’t a good pull, that individual pull can be deleted from the lineup, but everything else will stay in the calculations. To clear everything, hold the delete button for two seconds. To save a pull into the calculations, press enter. If for some reason you forget to press enter and take another pull, that last pull will still be shown, but the new one won’t. This will allow you to go back and just hit enter to save the last good pull. Wheeler provides a really easy-to-understand page of instructions with the gauge.

showing the replacement of the two AAA batteries inside the gauge
The gauge is powered by two AAA batteries (not included). Replacing the batteries is as easy as removing a small screw on the back of the gauge. There is nothing else removable on the gauge making it an easy-to-use one-piece trigger gauge. Other electric trigger gauges have to be put together before each use.

The Design and Case

The overall design of the trigger gauge is great due to the fact that it is one piece. In other digital gauges, such as the Lyman Digital Gauge, the pull arm has to be assembled before it can be used. On the Wheeler, the arm simply bends down into itself and the sensor is seated inside the body of the gauge for safekeeping.

The case is a plastic hard case with foam inside for the gauge and the adapter.

the wheeler professional trigger gauge in the hard plastic box. Also the calibration card and a spot inside the case for a trigger adapter
The Wheeler Professional Digital Trigger Gauge comes in a hard plastic box for easy and safe storage. Inside the case, you will find the gauge, a trigger adapter for the sensor, and a calibration card stamped from Wheeler with the readings taken from the inspector.

The Calibration Card

A calibration card comes with the Wheeler Digital Trigger Gauge, which is a massive deal. Any type of gauge should be calibrated properly because its job is to take precise measurements. The calibration card shows the test weights taken, a stamp of who inspected it, and the date of inspection. It’s legit too because not every test pull is perfect. Such as below, this calibration card shows that a nominal value of 9 lbs was taken. However, a value of 8 lbs 15.8oz was read. While this is very close to 9 lbs and shows that the trigger pull gauge is working as it should, it also shows that averages of readings should be taken, and not every reading will provide the same thing. This card also helps with information if the trigger pull gauge isn’t working when it reaches the customer. The customer can provide the calibration card information to the manufacturer.

Trigger Pull Readings on Various Guns

the wheeler professional digital trigger gauge and four pistols.
The Wheeler Professional Digital Trigger Gauge is an easy to use all electronic trigger pull gauge that will give you a consistent reading each time. The display shows the user how many readings have been made and the average of all readings automatically. No math!

Pistol

  • HK P30: 5 lb 9.7oz, 5 lb 6.7 oz, 5 lb 9 oz. AVG: 5 lb 8.5 oz
  • Walther PDP: 4 lb 10.9 oz, 4 lb 12.6 oz, 4 lb 7.5 oz. AVG: 4 lb 10.3oz
  • FN 509T: 7 lb 5.7 oz, 7 lb 8.0 oz, 7 lb 5.7 oz. AVG: 7 lb 6.7oz
  • Sig Sauer P320-XTEN: 5 lb 8.3 oz, 5 lb 9.5 oz, 5 lb 13.1 oz. AVG: 5 lb 8.9 oz

Rifle

  • Custom .223 Gas Gun w/ Trigger Tech Diamond AR15 Pro Curve: 2 lb 2.1 oz, 2 2.7 oz, 2 lb 3.9 oz. AVG: 2 lb 2.9oz
  • Custom 6.5 Creed NRL Hunter Gun with Trigger Tech Diamond Pro Curve: 13.8 oz, 12.9 oz, 13.1 oz. AVG: 12.6 oz
showing a 13 oz trigger pull reading on a custom 6.5creed bolt gun
It is important to know the weight of your trigger in precision rifles especially due to triggers being adjustable. Shooters need to know their preference of weight because triggers such as this one, the TriggerTech Diamond AR15, can go from 1.5lbs-4lbs.
Steph Martz is a Veteran of the full time MNARNG force as a Small Arms Repairer and worked to bolster their marksmanship team. Mainly a technical writer and gunsmith within the Federal world she comes with many armorer classes under her belt such as KAC, Glock, every FN weapon in the book, and Small Arms Weapons Expert (SAWE). So, sorry to bore you with the knowledge that actually make firearms shoot. Currently heavily into the long range world she competes in National Rifle League Hunter and various Gas Gun Precision Series.

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