The biggest problem with traditional car alarms is the alarm. The deafening 120-dB siren is meant to draw attention to the car, scaring the would-be thief away.
Manufactured by Directed, Inc., the same company making Python and Viper car alarms, the Avital 5305L is the most affordable car alarm on the market featuring a remote start system and a two-way pager.
The ScyTek A20 has all the basic features we look for in an affordable car alarm: a 120-dB six-stage siren, dual-zone impact sensors and keyless entry. The ScyTek A20 remote is among the smallest available despite having five functional buttons.
The Viper SmartStart GPS is a car tracker made by one of the most popular car alarm manufacturers, Directed, Inc.
Pyle is known more for manufacturing affordable car speakers, but the Pyle PWD701 is among the most popular car alarms under $50 on the market. As with high-end alarms like the Viper 5706V and Python 5706P, this security system features a six-stage, 120dB siren with a dual-stage sensor.
The Viper 5706V is the most high-end car alarm on the market. Many people buy Viper car alarms because of its brand. Having a Viper decal on your car's window is viewed by many to be an effective, albeit unproven, deterrent. (This explains why you can purchase the decals separately.)
The Auto-Vox M1W is a wireless backup camera and monitor kit. Unlike other cameras we reviewed in this category, the M1W keeps the exterior camera and wireless transmitter separate.
The iBall wireless trailer hitch camera is a backup camera with a specific purpose and an extremely simple setup. You attach the camera to the back of your vehicle to help you hitch to your trailer.
There are two versions of the Peak PKC0BU4, so look out for older versions floating around and make sure you get the digital wireless camera and not the older, analog one. The digital signal is less prone to interference from other things working on the same frequency, such as in-vehicle Bluetooth.
The Yada backup camera with dash monitor is a convenient tool that lets you keep track of what’s behind your car when you back up.
The Cobra RAD 450 is the most basic radar detector that I've reviewed, which is what you'd expect for an affordable radar detector that's around $100. You shouldn’t expect elite range.
The Cobra iRAD is exactly what you'd expect from an affordable radar detector under $150. It doesn’t have elite range. It doesn't have built-in GPS.
The Radenso Pro M-Edition is a GPS radar detector marketed to enthusiasts with boasts of extreme range and MultaRadar detection.
The Radenso XP is a mid-priced radar detector with midrange performance. Radenso claims that its known as one of the quietest radar detectors, which could be true. It made barely a peep in the city performance tests. While some drivers appreciate this silence, we found it too easy to ignore.
The Valentine One is a popular radar detector among expert detectorists. It's famous for its extreme range and it's classic design. Of course, there's a difference between having a classic design and being stuck in the past.
Avoiding costly traffic fines means driving alertly, and nothing helps you stay conscious of your driving better than a radar detector (and backseat drivers). The Whistler CR93 is one of the few radar detectors under $300 that has a built-in GPS, though it doesn't take full advantage of it.