ASR Tactical Trip Wire Perimeter Alarm Signaling Device Early Warning Security System

I like the small size better than the more common brand out there. They work great and are well built.

Good unit that is easy to set up. Gives a loud alarm when set off. Beware you need to have 209 shotgun primers on hand because you won’t be finding any for sale.

These ones are quality manufactured. An additional bonus of the design is you can add extra primers in the vent holes, or use it to light a fuse. I use them to keep deer out of my garden. Use aluminium tape to seal the primer else dew or rain will kill the primer. Personally I think these are to expensive for what they are, but the do work good.

Bought online without seeing it. Works great. The caps are just the primer portion of a shotgun shell, also used in manual load muskets. I bought them caps from Cabela's/BassPro. There's no gunpowder involved. For my use as a trip wire, the main portion is fastened, and staked to the ground, only the pull pin is tied to a fishing line. It makes a loud pop, and scares the crooks. gratifying. When the pin is dragged off and lost, it is easy to replace with an ordinary wire.

This ease of use was amazing and very dependable.

This thing is bad ass.... All you need are some 209 shotgun primers! CCI ones work fine and are super loud. Rang my ears for a while when I was testing it in the garage. I can't was to tell my kids not to do something and set this thing up for when they do exactly the opposite :) Big 5 sells the primers for cheap, 100 primers in a pack for 7 bucks.

Helps keep bears out of camp

The first time I set this up I put a shotshell primer inside after securing the body to a wall and putting in the 2 pins (safety and trigger). Tied a line to the trigger, then removed the safety. Pulled the trigger but the cap didn't go off.The firing pin was sitting on a live primer. Only thing to do was pull the firing pin back to to reset it. As soon as the pin moved the primer went off. In my hand. Very loud. No damage to my hand. The neighbors 500 feet away heard me swear at it. Louder than the damn cap going off (muffled, I'm sure by my hand wrapped around the body).Put another cap in, worked this time.I haven't used it since, not sure if I wan't to.

Primer caps are loud if you've never heard them before. Anyone who reloads has lots of them. It works great. If you set them on a trail you know if animals pass through and will wake you up in the middle of the night quickly to grab your gun. Great thing works perfect. Scares most big animals.

Very nicely made product with great functionality.

Ordered 4 of these ASR Tripwire Perimiter Alarms (took 18 days to recieve in Quebec Canada, although someone in the supply chain didn't update the shipping status, so it was stuck in "Carrier picked up the package" forever... even a week after having received them).When I opened the package, I discovered the following:a) These seem really well built (looks really solid). Pleasantly surprised.b) Were much smaller than I thought (see image provided with real dimensions). I was expecting (for some reason), something around 6" tall. But they are actually no longer than 10 cm (3.94") high. But that could also be a good thing (easier to carry and conceil when deployed).So far, I tried them twice, and they are really, really loud! I bought the Federal Shotshell Primers (209A), and they fit well and fired with no issue. In Canada (QC), I purchased them for about $0.08 per ($6.99 + tax, for a pack of 100). So the price is great (I guess), innexpensive to use.It left a huge black stain on my (white) 2x4 board I screwed it into, so I'm guessing the flame/heat is great (do not hold this in your hand or near you, as they warn). It would be really bad.The only complaint I have is their Amazon product images contradict themselves as to where the Safety pin and Trigger pin really go. One image shows the Safety pin in the top hole, and the other in the bottom hole. Their instructions (see image provided) seem to indicate the Safety pin goes in the lower hole.I have used them by putting the Safety pin in the upper hole (seems easier to pull, but I'll experiment).With time, we'll see if and how these hold up to being used (I'll try to give an update in a year or so).The only two recommendations I would make to ASR are:a) Add one (or more) safety/trigger pins (just in case). Would cost them pennies to do so.b) They sell these in 1, 2, and 4 units, but have another Amazon product where you can buy 12 of them. Don't know why they did it like that. They should have simply added an option to buy 6, 8, 10 and 12 (with significant bulk discounts).But anyway, I do recommend these to anyone (so far).I also bought (from another site), two FITH-ops 12 Guage Permimeter Trip Alarm ... can't wait to receive those also and try them.

Great device that acts as a great warning device in isolated areas. Item is as advertised.

Works well came fast