20 Best Spy Motorcycle Alarm System [2023]

Are you looking for the best Spy Motorcycle Alarm System? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Spy Motorcycle Alarm System.

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# Preview Product
1 BANVIE 2 Way Motorcycle Security Alarm System with Remote Engine Start Anti-Hijacking BANVIE 2 Way Motorcycle Security Alarm System with Remote Engine Start Anti-Hijacking
2 Horn Siren for SPY 2 Way Motorcycle Alarm System Horn Siren for SPY 2 Way Motorcycle Alarm System
3 Remote Controller for SPY 2 Way Motorcycle Alarm System Remote Controller for SPY 2 Way Motorcycle Alarm System
4 Spytec GPS Hardwired GPS Tracker for Vehicles, Cars, Trucks, Motorcycles, Semi-Trucks, Equipment... Spytec GPS Hardwired GPS Tracker for Vehicles, Cars, Trucks, Motorcycles, Semi-Trucks, Equipment...
5 EASYGUARD EM212 2 Way Motorcycle Alarm System with LCD Pager Display Rechargeable Transmitter Built... EASYGUARD EM212 2 Way Motorcycle Alarm System with LCD Pager Display Rechargeable Transmitter...
6 EASYGUARD EM211 2 Way Motorcycle Alarm System with Remote Start Starter Shock Sensor tilt Motion... EASYGUARD EM211 2 Way Motorcycle Alarm System with Remote Start Starter Shock Sensor tilt Motion...
7 Spytec GPS GL300 and Hardwire Kit GPS Tracker for Vehicles, Cars, Trucks, Motorcycles, Loved Ones... Spytec GPS GL300 and Hardwire Kit GPS Tracker for Vehicles, Cars, Trucks, Motorcycles, Loved Ones...
8 SinoTrack 4G GPS Tracker for Vehicles, ST-901L LTE Mini GPS Tracker Waterproof Locator Real-Time... SinoTrack 4G GPS Tracker for Vehicles, ST-901L LTE Mini GPS Tracker Waterproof Locator Real-Time...
9 CARLOCK - 4th Gen Advanced Real Time 4G Car Tracker & Car Alarm. Comes with Device & Phone App.... CARLOCK - 4th Gen Advanced Real Time 4G Car Tracker & Car Alarm. Comes with Device & Phone App....
10 Tracki GPS Tracker for Vehicles, Car, Kids, Dogs, Motorcycle. 4G LTE GPS Tracking Device. Unlimited... Tracki GPS Tracker for Vehicles, Car, Kids, Dogs, Motorcycle. 4G LTE GPS Tracking Device....
11 Invoxia Real Time GPS Tracker with 1 Year Subscription NO FEES — For Vehicles, Cars, Motorcycles,... Invoxia Real Time GPS Tracker with 1 Year Subscription NO FEES — For Vehicles, Cars,...
12 2 Pack Spytec GPS GL300 GPS Tracker for Vehicles, Cars, Trucks, Motorcycles, Loved Ones and Asset... 2 Pack Spytec GPS GL300 GPS Tracker for Vehicles, Cars, Trucks, Motorcycles, Loved Ones and Asset...
13 Fosmon USB-C Rechargeable Bike Alarm with Remote, IP55 Waterproof Wireless 110dB Loud Anti-Theft... Fosmon USB-C Rechargeable Bike Alarm with Remote, IP55 Waterproof Wireless 110dB Loud Anti-Theft...
14 Car GPS Tracker for Vehicles Real-time Locator GPS/GSM/GPRS/SMS Tracking Cars Antitheft with Mobile... Car GPS Tracker for Vehicles Real-time Locator GPS/GSM/GPRS/SMS Tracking Cars Antitheft with...
15 Optimus GB100M 4G LTE - Easy Install on Car's Battery GPS Tracker Optimus GB100M 4G LTE - Easy Install on Car's Battery GPS Tracker
16 Optimus GV75MG Waterproof Wired GPS Tracker for Motorcycles, Boats, Machinery, Assets Optimus GV75MG Waterproof Wired GPS Tracker for Motorcycles, Boats, Machinery, Assets
17 SINOTRACK ST-901L 4G GPS Tracker for Vehicles, Car Locator Mini Real-Time Location Tracking Device,... SINOTRACK ST-901L 4G GPS Tracker for Vehicles, Car Locator Mini Real-Time Location Tracking...
18 BASU eAlarm Plus 130db Emergency Alarm for Camping & Hiking, Tripwire Alarm, Bear Alarm, Perimeter... BASU eAlarm Plus 130db Emergency Alarm for Camping & Hiking, Tripwire Alarm, Bear Alarm,...
19 Trak-4 12v GPS Tracker with Wiring Harness for Tracking Equipment, Vehicles, and Assets Trak-4 12v GPS Tracker with Wiring Harness for Tracking Equipment, Vehicles, and Assets
20 Onamicit GPS Tracker for Vehicles,Mini Magnetic GPS Real time Car Locator,Micro GPS Tracking... Onamicit GPS Tracker for Vehicles,Mini Magnetic GPS Real time Car Locator,Micro GPS Tracking...
Bestseller No. 1
BANVIE 2 Way Motorcycle Security Alarm System with Remote Engine Start Anti-Hijacking
  • // this product is 100% original OEM from SPY alarm factory. Remote start engine and cut off engine.
  • 2-way long transmitting range and real time monitoring motorcycle status.
  • LCD color backlight changed and sounding against alert
  • With microwave sensor to detect any illegal approach.
  • Built-in vibration sensor, sensitivity adjustable by remote.
Bestseller No. 2
Horn Siren for SPY 2 Way Motorcycle Alarm System
  • Working voltage DC 12V , Siren volume 110-125dB.
  • ONLY work for 2-way motorcycle alarms, it will not work on 1 way motorcycle alarm as low working current.
Bestseller No. 3
Remote Controller for SPY 2 Way Motorcycle Alarm System
  • This remote control is special for SPY LM209 motorcycle alarm. You must be sure it is the same as the one in your hand.
  • Code Learning : Keep pressing the code learning switch, the LED will light on. Then press any button on the first remote contro, the LED will flash...
Bestseller No. 4
Spytec GPS Hardwired GPS Tracker for Vehicles, Cars, Trucks, Motorcycles, Semi-Trucks, Equipment...
  • Easiest & fastest GPS tracking: Spytec GPS offers the fastest GPS trackers for vehicles and equipment using 4G satellite technology. Receive boundary,...
  • Easy-to-use software & features: Watch your tracker move on a map, customize alerts and boundaries, see past data, speed, distance, & more.
  • No Battery Required, Always On: With this GPS tracker being wired directly into your vehicle's electrical system you never need to worry about...
  • Professional Installation Recommended - While using our app is easy, knowing how to hard-wire something into your vehicle's electrical system isn't,...
  • Lifetime warranty & affordable subscription: This device requires a subscription to our easy-to-use mobile and desktop apps. Activate the device,...
Bestseller No. 5
EASYGUARD EM212 2 Way Motorcycle Alarm System with LCD Pager Display Rechargeable Transmitter Built...
  • EASYGUARD 2 Way Motorcycle Alarm system with LCD pager display, built in shock sensor & microwave/proximity sensor detecting feature. Can real time...
  • With remote Engine Start optional, some newer motorbikes may need extra relay or bypass module in order to use this feature.
  • Extra AAA battery is required! The remote is rechargeable when working with rechargeable AAA battery, also can work with non-rechargeable AAA battery(...
  • Fits for most DC12V motorcycles and scooters on the market, professional motorcycle alarm installer installation is highly recommended
  • With long remote control working distance and can improve your motorcycle safety level better.
Bestseller No. 6
EASYGUARD EM211 2 Way Motorcycle Alarm System with Remote Start Starter Shock Sensor tilt Motion...
  • EASYGUARD 2 way LCD display motorcycle alarm system with remote engine start, tilt sensor & shock sensor included
  • Fits for most DC12V motorcycles, scooters on the market
  • The remote engine start function is optional, extra relay or bypass module is required for some newer bikes if there is chip immobilizer in factory...
  • With built in tilt sensor & shock sensor to protect your motorcycle better
  • Extra AAA battery is required for the remote control & professional motorcycle alarm installer installation is recommended
Bestseller No. 7
Spytec GPS GL300 and Hardwire Kit GPS Tracker for Vehicles, Cars, Trucks, Motorcycles, Loved Ones...
  • Easiest & fastest GPS tracking: Spytec GPS offers the fastest GPS trackers for vehicles, valuables, and equipment using 4G satellite technology....
  • Easy-to-use software & features: Watch your tracker move on a map, customize alerts and boundaries, see past data, speed, distance, & more.
  • No Battery Required, Always On: With this GPS tracker being wired directly into your vehicle's electrical system you never need to worry about...
  • Small & versatile: Our GPS tracker is 1" thick with 7-10 days of battery life (with 2 hours of movement per day). Simply set/activate and use as a GPS...
  • Lifetime warranty & affordable subscription: This device requires a subscription to our easy-to-use mobile and desktop apps. Activate the device,...
Bestseller No. 8
SinoTrack 4G GPS Tracker for Vehicles, ST-901L LTE Mini GPS Tracker Waterproof Locator Real-Time...
  • 【Cut Engine Remotely】4G gps tracker include relay, when you found your car was stolen, you can control your car remotely on your phone, cut the...
  • 【MAIN FUNCTION & 4G NETWORK】SinoTrack mini car gps tracker for Motorbike, Built-in WCDMA, GSM and GPS double antennas with ACC to detect...
  • 【SUPPORT TRACKING PLATFORM LIFETIME】Waterproof gps tracker for cars with online tracking service subscription. Buy a SIM card for the device (this...
  • 【REAL TIME TRACKING】Real-time car GPS tracker ST-901L 4g gps tracker for vehicles hidden Locator based on LTE, GSM , GPRS network and GPS...
  • 【HISTORY MEMORY】Sinotrack 4g gps tracker for motorcycles,car,truck and taxi can save 2 years of tracking history. Sinotrack gps tracker no monthly...
Bestseller No. 9
CARLOCK - 4th Gen Advanced Real Time 4G Car Tracker & Car Alarm. Comes with Device & Phone App....
  • WORK & SLEEP WITHOUT WORRY - CarLock monitors and alerts you on your phone when your vehicle is moved, when the engine starts, if unusual vibration is...
  • MONITOR YOUR TEENAGER - We love our teens but they can be entirely different people behind the wheel. CarLock detects harsh acceleration (drag...
  • VIRTUAL MECHANIC - CarLock actively monitors the health of your vehicle and alerts you in advance if your car battery is running dangerously low or is...
  • LIKE GPS ON STEROIDS - Also included is detailed trip tracking which lets you monitor where your car has been. Whether your car is stolen or a...
  • EXTREMELY AFFORDABLE - CarLock uses cloud computing, internet storage, GPS tracking and a modern day app (Andoid & iOS). You get all this for only...
SaleBestseller No. 10
Tracki GPS Tracker for Vehicles, Car, Kids, Dogs, Motorcycle. 4G LTE GPS Tracking Device. Unlimited...
  • Unlimited distance real time tracking 4G LTE +extra triband. Monthly fee is required. Full USA & worldwide coverage. International SIM card included....
  • Tracki is smallest & lightest, 1.75x1.5x0.55in, weight only 1.26oz. Revolutionary 4G LTE + 3G + 2G combined works everywhere with any network new or...
  • Rechargeable battery life is up to 5 days (the more it moves the lesser the days) tracking real time every 1-5 minutes. If real time tracking is not...
  • Works with GPS satellites when outdoors as primary tracking technology and when indoors Wi-Fi as a secondary backup tracking. Tracki listens to nearby...
  • Lifetime warranty including lost or damaged device. Tracki is cutting-edge & easy to set up working out-of-the-box within a few minutes. Tracki comes...
SaleBestseller No. 11
Invoxia Real Time GPS Tracker with 1 Year Subscription NO FEES — For Vehicles, Cars, Motorcycles,...
  • PROTECT & TRACK 24/7 — Mini GPS tracker for anything, anywhere across the USA. Get up and running quickly via the companion app. Lightweight, small,...
  • REAL TIME GPS TRACKING, MOTION & TILT ALERTS — Stop crime. Tracker device for vehicles. React quickly theft of your car, motorcycle, bike, van,...
  • PROTECT YOUR FAMILY FRIENDS — Standalone & discreet micro gps tracker, easy to conceal. 24/7 monitoring offers you peace of mind. Personal tracking...
  • EXCEPTIONAL BATTERY LIFE: Car tracking device to use with smartphone. Location updates every 30 seconds, 2, 5, 10, or 30 minutes. Rechargeable in 90...
  • 1-YEAR SUBSCRIPTION: No credit card needed! Built-in SIM card. Renew from 2.49/month. Uses 4G networks in the Continental US and Hawaii. The most...
SaleBestseller No. 12
2 Pack Spytec GPS GL300 GPS Tracker for Vehicles, Cars, Trucks, Motorcycles, Loved Ones and Asset...
  • Easiest & fastest GPS tracking: Spytec GPS offers the fastest GPS trackers for vehicles, valuables, and equipment using 4G satellite technology....
  • Easy-to-use software & features: Watch your tracker move on a map, customize alerts and boundaries, see past data, speed, distance, & more.
  • Reliable service: With more than a 99.99% uptime and a .256 millisecond processing time, our cloud-based technology gives you the data you want, when...
  • Small & versatile: Our GPS tracker is 1" thick with 7-10 days of battery life (with 2 hours of movement per day). Simply set/activate and use as a GPS...
  • Lifetime warranty & affordable subscription: This device requires a subscription to our easy-to-use mobile and desktop apps. Activate the device,...
SaleBestseller No. 13
Fosmon USB-C Rechargeable Bike Alarm with Remote, IP55 Waterproof Wireless 110dB Loud Anti-Theft...
  • [UPGRADED WITH USB-C RECHARGEABLE BATTERY] - Say no more to disposable batteries. This Fosmon bicycle alarm is equipped with a long lasting 700mAh...
  • [3 ALARM TONES, 3 VOLUME LEVELS, 7 LEVELS OF SENSITIVITY] - This anti-theft bicycle alarm can respond to a slight touch, a push or even a hard beating...
  • [IP55 WATERPROOF MULTIFUNCTION ALARM] - This vibration triggered alarm is made with a UV resistant and strong PC construction. It is weather proof and...
  • [3 INSTALLATION METHODS] - This motion alarm sensor comes with multiple methods of secure mounting. Installation on handlebars or a bike frame tube...
  • [Limited Lifetime Warranty] - We have served millions of customers for more than 10 years and every product comes with a limited lifetime warranty....
SaleBestseller No. 14
Car GPS Tracker for Vehicles Real-time Locator GPS/GSM/GPRS/SMS Tracking Cars Antitheft with Mobile...
  • ✈Excellent function:This tracker is a new product based on the GSM / GPRS network and GPS satellite positioning system, which set multiple functions...
  • ✈OPERATION: OPERATION: Authorization, there are 4 numbers to be allowed to authorize in the tracker at most, you just need send SMS in the format...
  • ✈APPLICATION: Vehicle leasing, fleet management and more, Motorcycle, scooter, bike anti-theft , Motorcycle, scooter, bike real-time tracking ,...
  • ✈SIM card -- Just like a cell phone, our real-time GPS tracker needs a SIM card to give you unlimited data coverage. If used in the US we recommend...
  • ✈【Global Locate GPS Tracker】this gps tracker work based on GPS +LBS+GSM ,so it can work perfectly around the worldwide countries.no matter where...
Bestseller No. 15
Optimus GB100M 4G LTE - Easy Install on Car's Battery GPS Tracker
  • GPS Tracker - Track Cars and Trucks - Hardwired Installation - Requires a 2 Wire Easy direct on Car's Battery installation (Positive and Negative)
  • USD 12.95 per Month - Cancel Anytime - No Contract - No Hidden Fees.
  • Updates Every 30 Seconds and on Corners
  • Email and Text Message Alerts for Movement, Speeding, Leaving or Entering Areas, Energy Disconnected - Driving Reports - 1 Year Tracking Historical...
  • SIM Card and Data Plan Included - FCC, PTCRB Certified Unit - Coverage for USA and Canada.
Bestseller No. 16
Optimus GV75MG Waterproof Wired GPS Tracker for Motorcycles, Boats, Machinery, Assets
  • Optimus IP67 Waterproof Wired GPS Tracker – Track Motorcycles, Boats, ATV, UTV, Machinery, Assets - Hardwired Installation - Requires a 2 wire...
  • $12.95 per month - Cancel Anytime - No Contract - No Hidden Fees
  • IPhone and Android App for Easy and Fast Tracking - Updates every 30 seconds and on corners.
  • Email and Text Message Alerts for Movement, Speeding, Leaving or Entering Areas, Energy Disconnected - Driving Reports – 1 Year Tracking Historical...
  • SIM Card and Data Plan Included - FCC, PTCRB Certified Unit - Coverage limited by cellular signal in the USA and Canada
SaleBestseller No. 17
SINOTRACK ST-901L 4G GPS Tracker for Vehicles, Car Locator Mini Real-Time Location Tracking Device,...
  • 【4G NETWORK】SinoTrack 4g mini car gps tracker for Motorbike, Built-in LTE, GSM and GPS double antennas with ACC to detect ignition.ST-901L...
  • 【MAIN FUNCTION】SinoTrack vehicle mini GPS tracker for car Motorbike, Built-in LTE/GSM and GPS double antennas with ACC to detect ignition.(SIM...
  • 【SUPPORT TRACKING PLATFORM LIFETIME】Waterproof GPS location tracker with online tracking service subscription. Buy a SIM card for the device (this...
  • 【REAL TIME TRACKING】Real-time car GPS tracker ST-901L Anti Lost Alarm Locator based on LTE, GSM , GPRS network and GPS satellites , locating and...
  • 【HISTORY MEMORY】Sinotrack car GPS tracker can save 2 years of tracking history. GPS location tracker device with 2 time interval, You can view and...
Bestseller No. 18
BASU eAlarm Plus 130db Emergency Alarm for Camping & Hiking, Tripwire Alarm, Bear Alarm, Perimeter...
  • America's #1 Emergency Alarm - TSA Approved & Permitted on Airplanes
  • Patented B A S U SmartHook Technology: Additional Semicircle loop allows instant Tripwire Alarm
  • Made in the USA or Imported: 100% Unlimited Lifetime Warranty & Free 24/7/365 Customer Support
  • Batteries Included: Replaceable Long-Lasting Lithium Metal CR1632, 5+ Yrs Shelf-Life
  • Common Uses: Personal Alarm, Criminal Deterrent, Acoustic Animal Repellent, Rescue Signal, Intruder Alert, Tripwire Alarm, Portable Alarm, Survival...
Bestseller No. 19
Trak-4 12v GPS Tracker with Wiring Harness for Tracking Equipment, Vehicles, and Assets
  • $6.99 a month (prepaid annual) or $12.99 a month (paid monthly) for hourly pings with options for 10-min and 1-min
  • REST API | Webhooks | Unlimited cell data | No contract | No activation or cancellation fees | SIM included
  • Email & text alerts | Geofencing | Simple to use - sign in & start tracking in minutes
  • Computer, Phone, or Tablet | Great for GPS tracking of vehicles, assets, and inventory | Track teens, loved ones, and elderly persons
  • Connect to 12 volts on your equipment, trailer, or vehicle for continual trickle charge | High-capacity internal battery
Bestseller No. 20
Onamicit GPS Tracker for Vehicles,Mini Magnetic GPS Real time Car Locator,Micro GPS Tracking...
  • 【Multi-Function】Use GPS tracker Recording, Sound monitoring, tracking, etc. Set multiple functions of security, tracking, monitoring surveillance,...
  • 【East To Use】All you need is a working SIM card (Attention:Sim is not included) to insert into the car tracker,then you can track and map (with...
  • 【Small Size and Light Weight】This GPS Tracker is super small (1.57x0.91x0.61in) and super light (1.06 oz). works worldwide with two powerful...
  • 【Wide Usage】Mini tracking device is designed for tracking the location of the lost elderly, children, pets, luggage, wallet and vehicles(renting...
  • 【100% Customer Satisfaction】If you have any questions,please feel free to contact us. We will solve your problem immediately.

Having trouble finding a great Spy Motorcycle Alarm System?

This problem is well understood by us because we have gone through the entire Spy Motorcycle Alarm System research process ourselves, which is why we have put together a comprehensive list of the best Spy Motorcycle Alarm Systems available in the market today.

After hours of searching and using all the models on the market, we have found the best Spy Motorcycle Alarm System for 2023. See our ranking below!

How Do You Buy The Best Spy Motorcycle Alarm System?

Do you get stressed out thinking about shopping for a great Spy Motorcycle Alarm System? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Spy Motorcycle Alarm System, which is why we have assembled a comprehensive list of the greatest Spy Motorcycle Alarm System available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Spy Motorcycle Alarm System that you consider buying. Your questions might include the following:

  • Is it worth buying an Spy Motorcycle Alarm System?
  • What benefits are there with buying an Spy Motorcycle Alarm System?
  • What factors deserve consideration when shopping for an effective Spy Motorcycle Alarm System?
  • Why is it crucial to invest in any Spy Motorcycle Alarm System, much less the best one?
  • Which Spy Motorcycle Alarm System are good in the current market?
  • Where can you find information like this about Spy Motorcycle Alarm System?

We’re convinced that you likely have far more questions than just these regarding Spy Motorcycle Alarm System, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Spy Motorcycle Alarm System, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Spy Motorcycle Alarm System. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Spy Motorcycle Alarm System buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Spy Motorcycle Alarm System currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Spy Motorcycle Alarm System has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Spy Motorcycle Alarm System?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Spy Motorcycle Alarm System.
  5. Customer Ratings: Number ratings grade Spy Motorcycle Alarm System objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Spy Motorcycle Alarm System.
  7. Product Quality: You don’t always get what you pay for with an Spy Motorcycle Alarm System, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Spy Motorcycle Alarm System is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Spy Motorcycle Alarm System information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Spy Motorcycle Alarm System is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

Related Post:

FAQ:

Q: What is the best motorcycle alarm to buy?

A: Best Motorcycle Alarms 1 MYSBIKER Motorcycle Alarm Disc Brake Lock. … 2 Tracker Monimoto 7. … 3 Oxford OF3 Boss Alarm Disc Lock. … 4 Gorilla Automotive 9100 Motorcycle Alarm with 2-Way Paging System. … 5 Scorpio SRX-900 Security System. … 6 Scorpio Maverick Security System. …

Q: What kind of security system do I need for my motorcycle?

A: BlueFire Motorcycle Security Kit Alarm System This is perhaps one of your biggest shots to keeping your motorcycle safe from thieves. The alarm system features pretty much for a small price; hence its growing popularity. The compact piece is designed to work with most models with a battery capacity of up to 12/24 volts.

Q: Can alarm systems work as a motorcycle GPS?

A: Alarm systems can work as a motorcycle GPS because with their help, you can use your remote to see where your bike is located. Hence, shortening the time it takes to find your bike at such times.

Q: What are the different types of bike alarms?

A: Bike alarms typically are one of two varieties. The less-expensive option is to combine the lock and alarm into one noise-making security device. While these are not as secure as the category of hidden alarm systems, which can optionally kill the ignition, they do allow your bike to scream for help when someone tampers with it.