Scorpio SR-i800S Security System
  • Scorpio SR-i800S Security System
  • Scorpio SR-i800S Security System
  • Scorpio SR-i800S Security System

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Scorpio SR-i800S Security System

The Scorpio SRi800S security system is the perfect combination of technology, simplicity and efficiency. It features the convenience of RFID (Radio Frequency Identification) technology, allowing for hands free operation.

The SR-i800S includes TRS-8 single button remote transceiver, MCM (main control module), Built-in backup battery, RFID antenna, universal installation kit, accessory harness, and main harness.


  • Ultra low power drain main control module (MCM)
  • Built-in 120 dB multi-tone siren with soft chirp arming
  • Auto or manual arming and disarming
  • Flashing lights with trigger memory display
  • Ignition circuit sensor
  • Dual-axis accelerometer for detecting impact
  • Smart Battery Safeguard with sleep mode
  • Built-in battery backup system allows the siren to operate even if wires are cut
  • Compact design (3 11/16" x 2 3/4" x 7/8")
  • Optional Scorpio Multi-Stage Perimeter Sensor detects motion around the motorcycle
  • Optional Scorpio Ignition Disabler allows disabling of the motorcycle's electrical system and prevents "hot wiring"
  • Optional Scorpio Factory Connector Kits are available and plug directly into the factory harness making installation fast, clean and easy.

3.3 / 5
Bang For The Buck
2.8 / 5

Fitment Notes & Exceptions

  • Requires splicing of OEM wiring harness.
  • Alarm systems should not be used in conjunction with a Lithium Ion battery because of the constant parasitic electrical draw. Use with a Lead Acid battery instead.
Product Style RevZilla Item # Manufacturer Product # Availability
Scorpio SR-i800S Security System 754578 SR-I800S/SR-i800 In Stock: Ships within 24 hours


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3.3 / 5.0
4 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Bang For The Buck
2.8 / 5
Ease Of Install
3.0 / 5
5.0 / 5
Bang For The Buck
2 / 5
OK But Could Be Better
I've heard horror stories about the Harley alarms and leaving people stranded and having to have their bikes towed to a dealer so I wanted an alternative. I tried one of the cheap alarms but ended up throwing it in the trash. I did some extensive research and looked at two alternatives, the Gorilla alarm and the Scorpio SR-i800. The reviews weren't that good for the Gorilla alarm so I opted for the Scorpio alarm. I didn't feel I needed the extra features or expense of the SR-i900 and this seemed to be what I was looking for. After receiving the Scorpio SR-i800 alarm system with the factory connector kit for my 2005 Harley Ultra Classic, the installation couldn't be easier and the alarm certainly seemed like a high quality unit. I didn't bother with the proximity sensor as I'd read mixed reviews and thought the shock and tilt sensor would be adequate for my needs. After the alarm was installed, I wanted to test the sensor. The tilt sensor worked great and as soon as I brought the bike up off the kick stand, the alarm went off. However, the shock sensor was a different story. I tried everything I could to make the shock sensor go off from hitting the seat to smacking the frame to shaking the bike as hard as I could but nothing would set off the alarm. I ended up RMAing the alarm to the manufacturer, Aritronix in Scottsdale, AZ, for testing and possible replacement. The folks I spoke with at Aritronix couldn't be any nicer but they said the alarm tested fine! I tried to explain all the things I had done to set it off without success but they assured me it was working fine so they shipped it back to me. I installed the unit again and again, the shock sensor wouldn't go off. I turned the sensitivity all the way up to 5 and only then could I occasionally set it off. I would think with 5 settings that if it were turned up to 5 a cat would set it off but that just wasn't the case. In the end, I'm going to live with it. I store my bike in the garage and really wanted some extra protection if I went on an overnight trip so as long as it goes off is somebody is really messing with it that's better than nothing. I've also done as the experts have suggested and use a high quality chain and lock plus a cover to keep it out of sight. That's the best I can do besides increasing my insurance coverage. I wished the shock sensor was better but that's really my only complaint at this point. Time will tell if it actually lasts.
March 13, 2016
2005 Harley Davidson Electra Glide Ultra Classic FLHTCU/I
Bang For The Buck
4 / 5
if basic security is what you need, A+
I bought it not long ago. after installation works just FINE. i had that with perimeter sensor, together it is next to impossible mess with the bike. i have some accessories on the bike like after market exhaust etc, when you get close and spend 2 sec around the alarm goes off. absolutely loved it. if you need two way remote it is not your system but i park my bike always close by so if the alarm works i have the feedback by nature :) thank you oh and the bike gixxer600
June 4, 2015
1 year ago
Bang For The Buck
1 / 5
Faulty after 5 months
When I first installed this alarm it worked amazing. After a few months however, I started running into issues. I had the auto sense set up, and it stopped recognizing my key fob. So whenever I went near it, and started the bike the alarm would go off. I took the battery out of the fob, and adjusted the prong connecting the battery, and it started working again. I had to do that a few times, and it finally quit on me this morning. It wouldn't recognize the key fob at all, and it constantly went off and stopped then started again. I had to get to work, so I unplugged it from the bike and took it out, but of course it's still going off because of the backup battery and wailing til the sun doesn't shine. Once I took the battery out the stupid thing finally shut up. So no, I do not recommend this alarm. I wish there were better options out there and it's a great concept but very flawed in execution.
March 2, 2016
2014 Kawasaki Ninja 650R ABS
Bang For The Buck
4 / 5
Ease Of Install
3 / 5
5 / 5
This product does what It is intended for.
The alarm is loud and does go off when someone upsets the balance of the bike. The directions could be a little better. I have a new bike and just had the dealer install it after looking at them. I didn't like that you don't have full functionality if you don't buy every piece. I don't have the perimeter sensor. For instance the instructions say press two buttons on the alarm switch when I only have one.

I wish it had phone connectivity so you could get a vibration or alert when the alarm goes off.

Remember to put your battery tender on first, or you'll have to do it with an alarm screaming.

The alarm sets when I turn the key to off and disables when I turn it on. It meets my insurance requirements for a break in $ and does what I needed it to do.
July 12, 2016
2016 Yamaha FJR1300ES
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Browse 7 questions Browse 7 questions and 11 answers
Would the i800s fit my Harley Davidson Softail 2005 (FLSTNI)?

Is it hard to install?

A S on Jun 10, 2015
BEST ANSWER: shouldn't be a problem unless you want to hook it up to the electrical system....I just hooked it up to the many problems inn the past. It's very easy to do in under an hour....most of the time is spent sorting out where you'll mount everything. Put your ear on when you connect it to the battery....or your ears will be ringing!
So in general what is the difference between this i800 and the i900?
A shopper on Feb 7, 2015
BEST ANSWER: The i900 has the remote that allows you know hen your bike is being messed with. It is two way vs just the alarm for the i800.
What's the difference between this alarm and the i900?
A shopper on Feb 7, 2015
BEST ANSWER: The are a major differences between the SR-i800 and SR-i900
The SR-i900 has a Long range 2-way FM monitoring.
The SR-i900 has a nice large LCD screen that displays notification and system status indications.
SR-i900 alarm paired with the RID-5 kit enables the “Anti-Hijack” ability where you can use your 2-way remote to send a signal to stop your engine within range. (This feature is compatible with the Sr-i900 system only)
Does the i800 remote ring or anything to notify you that you bike is being messed with?
chance f on Jul 20, 2016
BEST ANSWER: It doesn't come with that.....but it may have the ability to do it with an add on module. I wanted a system that would be simple and didn't have to be wired to the bikes electrical system (exception - hook it up to battery) I've had lots of problems with hook ups to bike systems in the past. This system will definitely alert you with a perimiter sensor, tilt and lean....the siren will blow your ear drums if you stand to close! I would definitely recommend it....even if its a little pricie.....but you can save money by installing yourself by placing it properly and hooking it up to the battery.
how difficult is the installation ?
A C on Jun 21, 2016
BEST ANSWER: Simple...depending on your skill. Myself...I just placed and mounted the wires and modules. Past experience has taught me to leave the wiring system alone. After it was all done I plugged into the battery...and ran like hell out of the ears rang for about 15minutes...they warn you in the instructions.
Has anyone successfully installed this system on a Honda Shadow 750. Where did you mount it? I can't get enough room under the seat.
William Q on Jun 14, 2016
BEST ANSWER: I'v installed it on my cbr300.. But Ether way. I installed it iunder the rear seat. Only the perimeter senser is in under the front seat
Is this plug & play with a 97 XL1200C Harley or do I need to acquire some harness or something?
A shopper on Feb 9, 2017