• This Forum is for adults 18 years of age or over. By continuing to use this Forum you are confirming that you are 18 or older. No content shall be viewed by any person under 18 in California.

Labradar "triggers"

Does anybody here know the exact "mechanics" of the various Labradar triggers - and be willing to share that information with me?

I'd like to know more about how they could work - are they "powered" by the unit, or merely "switches" that close a circuit?

I'm not brave enough to just plug in a mic connector and start "shorting" out wires to see if they trigger. So any specific pinout info would be appreciated.
 
I want to try and build my own - if it's as simple as the trigger being in essence a "switch" - I can readily get those type of components locally - importing any of the "ready made" triggers are too expensive.
 
Here is another version that is currently being marketed:

https://jklprecision.com/product/labradar-trigger/

I cannot tell you how this particular kinetic trigger works, but it works very well. However, whatever components are inside the little box are very lightweight and not magnetic. I know this because I recently put together a magnetic trigger mount for it and was concerned the magnetic field might interfere with its function. So I held the magnet against the unit and there was no apparent attraction, suggesting that whatever is inside is not ferrous. The connector wire, however, is slightly magnetic, suggesting it might use a braided steel wire or foil as a shield.

The other thing you might want to think about is that LabRadar actually sells an external microphone that also plugs into the same port. Whatever type of electric signal is generated by the microphone when it detects the muzzle report is also sufficient to activate the unit.

https://buymylabradar.com/products/air-gun-trigger-adapter
 
Here is another version that is currently being marketed:

https://jklprecision.com/product/labradar-trigger/

I cannot tell you how this particular kinetic trigger works, but it works very well. However, whatever components are inside the little box are very lightweight and not magnetic. I know this because I recently put together a magnetic trigger mount for it and was concerned the magnetic field might interfere with its function. So I held the magnet against the unit and there was no apparent attraction, suggesting that whatever is inside is not ferrous. The connector wire, however, is slightly magnetic, suggesting it might use a braided steel wire or foil as a shield.

The other thing you might want to think about is that LabRadar actually sells an external microphone that also plugs into the same port. Whatever type of electric signal is generated by the microphone when it detects the muzzle report is also sufficient to activate the unit.

https://buymylabradar.com/products/air-gun-trigger-adapter
I have this one as well- the Jkl model $35. Picks up every shot. After using it, I came to the conclusion it wasn’t so much an aiming issue, as it was a triggering issue.
 
There are a couple of guys that built there own on the Facebook Labradar group. Sounds like a simple accelerometer, and there was low and high voltage mentioned.....

Thanks - so that would imply it's not just a simple switch, and there is power needed for whatever triggers the trigger - and the power should come from the device and not the labradar - but let me see if I can get hold of someone in the group you mention - hopefully they will be willing to share some schematics.
 
Thanks - so that would imply it's not just a simple switch, and there is power needed for whatever triggers the trigger - and the power should come from the device and not the labradar - but let me see if I can get hold of someone in the group you mention - hopefully they will be willing to share some schematics.
Yeah. Scroll back to the post from May 31. And actually, it appears somebody in South Africa is making and selling them.
 
I have this one as well- the Jkl model $35. Picks up every shot. After using it, I came to the conclusion it wasn’t so much an aiming issue, as it was a triggering issue.

I also have the JKL Trigger.
Works great for those rifles that don't reliably trigger the unit.
I highly recommend them and for $35 it isn't worth the effort to build one unless you just like to tinker with stuff...

However 90% of the time, I simply use the "internal" trigger on the unit with no issues.
 
I use the Piet trigger, which is the original of this type of external Labradar trigger. https://pietrecoiltrigger.com/

These "inertia" triggers are typically piezoelectric accelerometers, which produce a voltage pulse when sharply accelerated, i.e. jostled, hit, bumped, etc. No external or internal power is needed for this type of trigger to operate - it is the deformation of the piezoelectric crystal which generates the voltage for the trigger signal.

My Piet trigger works so well, I use the Labradar to track arrow velocity when shooting my compound bow. (My Labradar was purchased for rifle load development, but the archery use is a convenient "bonus"). The Piet trigger is held to the bow's riser with Velcro. The mechanical shock of launching the arrow is enough for the Piet device to trigger the Labradar. Once set up, it never misses a shot.

Here's a shot from an Xpedition Denali 60lb bow shooting a 445gn arrow at a 40yd target:

 
Last edited:
With the Piet trigger can i still run an external battery pack. The internal batteries don't last very long on my Labradar and i always just connect my external battery pack first thing and only need to charge it occasionally.
 
With the Piet trigger can i still run an external battery pack. The internal batteries don't last very long on my Labradar and i always just connect my external battery pack first thing and only need to charge it occasionally.
Yes, the triggers plug into the "headphone" jack.
 
I use the Piet trigger, which is the original of this type of external Labradar trigger. https://pietrecoiltrigger.com/

These "inertia" triggers are typically piezoelectric accelerometers, which produce a voltage pulse when sharply accelerated, i.e. jostled, hit, bumped, etc. No external or internal power is needed for this type of trigger to operate - it is the deformation of the piezoelectric crystal which generates the voltage for the trigger signal.

My Piet trigger works so well, I use the Labradar to track arrow velocity when shooting my compound bow. (My Labradar was purchased for rifle load development, but the archery use is a convenient "bonus"). The Piet trigger is held to the bow's riser with Velcro. The mechanical shock of launching the arrow is enough for the Piet device to trigger the Labradar. Once set up, it never misses a shot.

Here's a shot from an Xpedition Denali 60lb bow shooting a 445gn arrow at a 40yd target:



Thanks - that makes sense - then I need to find some of those piezo accellerometers it seems...
 
Greg Piet shoots at my range here in Vegas. I have been using it for 1.5 years now and its easy to use, but can give false triggers when cycling the bolt etc..
 

Upgrades & Donations

This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.


Click Upgrade Membership Button ABOVE to get Gold or Silver Status.

You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.


To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.

Forum statistics

Threads
165,516
Messages
2,197,806
Members
78,961
Latest member
Nicklm
Back
Top