Viper 3100V 1-Way Security System
Original price was: $89.99.$74.99Current price is: $74.99.
Price: $89.99 - $74.99
(as of Sep 21, 2025 21:20:29 UTC – Details)
The Viper 3100V in an entry level Viper security system for the budget conscious. It offers door, boot, bonnet protection and dual stage shock sensor with a standard 12 Volt siren. 2 x 3 Button remotes with two auxiliary channels. Central locking connectivity (additional parts may be required). This unit is not SmartStart compatible.
2 Stage Shock Sensor
Door, Bonnet & Boot Protection
Engine Immobilization
Parking Light Flash (Arm, Disarm & Trigger)
Keyless Entry
Customers say
Customers find the car alarm works well and is particularly suitable for college students, with straightforward installation and good value for money. The range of the remote control receives mixed feedback, with several customers praising its remarkable range. The door lock feature and sound level also get mixed reviews, with customers noting the siren isn’t loud enough. The alarm’s longevity receives mixed feedback, with one customer reporting it lasted about two weeks.
13 reviews for Viper 3100V 1-Way Security System
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Original price was: $89.99.$74.99Current price is: $74.99.
Godzilla –
High-quality, low-cost, no more worries
I’m very pleased with the alarm. It doesn’t give false alerts and the ignition kill-switch makes it so even if someone has a key they can’t start my truck. I had to pay to have it installed but it was simple. Anyone comfortable with their auto’s electric system could install this alarm. I’ve used Viper Alarms in the past and I’ve always been pleased.
Kyle Essenmacher –
Works well, Recommend professional installation unless proficient in auto electrical systems
Installed this security system in my 2014 mustang convertible following a break in at night. had to get creative and buy a haynes repair manual and trace some of the wiring with a Fluke toner. I tapped into the accessories circuit (on with ignition key in start and run) for the yellow wire that goes to the ignition switch. Spliced in a 16 guage wire from positive battery terminal to red wire on alarm, placed fuse at battery, grounded the negative through the vehicle chassis. For the door sensor wire I tapped into the wire that turns the map lights on when a door is opened. Positive horn wire was long enough to reach through firewall by the hood latch cable without additional wire splicing, negative of horn to battery. Didn’t use the ignition interrupt. Hid the alarm box under the carpeting. Took a good 4 hours or so to install and get working. Giving the car a shove with your elbow emits 3 loud chirps as a warning, before the full alarm. The full alarm is loud enough to arouse attention especially since my apartment complex is well lit.
Tim Williams –
Works well with small probs – maybe not device
I had this alarm professionally installed; and Iâm glad I did. It took him two hours (SUV); and no doubt it wudda taken me two days to me to install/screw it up and then Iâd call him anyway. I now know there are various options (like 30/60-second delay auto lock); but my installer said there were none. .The company is not responding to me, and seems not to want to talk to layman/customers â â only the installer who is not responsive to me. So I am left in a lurch. Most notable is that the alarm remote wonât operate very far – half what my car keys do. Sometimes – close by, even standing next to car – it takes 4-7 button presses to lock/unlock.
Bob –
Great basic system
I wanted a simple alarm with the ability to control door locks and trunk. I’m average to slightly above average in auto electronics. The supplied guide only tells you what wires do what on the alarm. I paid for a wiring diagram for my camry…under 20 dollars and after that connections were simple. Only extra items I needed were a relay for the trunk release and diodes to isolate door pins. Siren is weak so I connected to my horn. All works great with good range.
Abigail –
love this alarm system
despite reading some bad reviews stating the alarm is low etc I still decided to buy it and let me just say, THAT ALARM IS NOT LOW, I can hear it all the way on the the top floors of my apartment and it is a very reasonable price for this system, most alarm systems are expensive but iâm happy I took a chance with this one because I can now open the door without the manual manufacturer key, i can use the keyless remote on this system- I have a ford focus 2008 and I can sound the alarm as well which is indeed loud, the key is a little sensitive however so be careful not to accidentally sound it. great buy, I would recommend.+ It has a silent feature! off you donât want the unlock boring to sound. The alarm is a bit sensitive to, thunder can cause it to go off.
Joan/Kendrick –
Responsive
Worked for 97 CRV
bob –
No fales alarms.
So far it has been working great. Easy to install. Instruction are great. Installed in around one hour.
Dan at AFT –
Good product zero support
I purchased this alarm for a 72 Chevy pickup. The product was what I expected and was easy to install. Being my truck is so old it doesn’t have electric door locks or even door switch pins as OEM.I contacted viper twice via email for some guidance. The contacts were about a month apart. So far I have hear nothing from the costumer service department except that the emails were received and a representative would contact me.I’ll never recommend this company or its products because of the extremely poor costumer support.
Baldo Glz –
Buen precio y calidad
matthew emary –
works great , easy to install , no issues
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Eashan Raman –
dosent work
Amazon Customer –
I fitted it into my 205 gti when I did an engine conversion as I had the dash already out.First off. And the instructions do not mention this. If you want some of the extra functions to work such as interior light illumination or additional accessories like windows go up when you lock. You will need relays.Be careful where you earth the alarm. When I terned my lights off the alarm would go off as I earthed it to the same earth block as the headlights. So I moved it, problem solved.Better instructions are avaliable for a different alarm (which is actually the same) type in âavital 3100 instructionsâ into Google and itâs the same alarm but instructions that actually are helpful.Other than that it seems ok. Iâve only driven the car twice and it was ok until I tried to tern the lights off then tern off the auto lock and alarm chirp then all hell broke loose.People say the alarm is quiet. It is not quiet at all. The install is quite involved you will need a multimeter and a box of electrical connections etc, but would be the same for any alarm. To sum it up for the price it is probably as good as any other and the remote is quite nice but it is very chineese. I would recommend installing a hidden switch on the siren earth that will stop the alarm sounding.