Vehicle central door lock actuator

Vehicle remote starter kit – ProStart Included: -1 x Remote control -1 x Hood pin switch -Wiring A ProStart Vehicle

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Car back-up camera

A car back-up camera, also widely known as a rearview camera or reversing camera, is a specialized video camera mounted on the rear of a vehicle. Its primary function is to provide the driver with a visual feed of the area directly behind the car when the vehicle is in reverse. This significantly enhances safety and convenience, especially when parking or maneuvering in tight spaces. How it Works:

1. Camera Placement: The camera is typically small and discreetly mounted on the rear of the vehicle. Common locations include near the license plate, integrated into the trunk handle, or within the rear bumper.
2. Activation: When the driver shifts the vehicle into REVERSE gear, the back-up camera automatically activates.
3. Video Feed: The camera captures a wide-angle video image of the area behind the car.
4. Display: This live video feed is then displayed on a screen inside the vehicle. This screen can be:
   • An integrated display in the dashboard (common in newer vehicles).
   • A dedicated monitor that mounts on the dashboard.
   • A replacement rearview mirror with an integrated screen.
   • An aftermarket car stereo head unit with a video input.
5. Deactivation: When the driver shifts out of reverse, the camera typically turns off.

Key Features and Benefits:

• Enhanced Safety: This is the most crucial benefit. Back-up cameras dramatically reduce blind spots behind the vehicle, helping drivers avoid collisions with:
  • Pedestrians: Especially children and pets who may not be visible in rearview mirrors.
  • Obstacles: Such as bollards, low walls, fire hydrants, or other vehicles.
• Improved Parking: Makes parallel parking and backing into parking spots much easier and more precise.
• Parking Guidelines: Many systems overlay dynamic (move with steering wheel input) or static lines on the screen to help the driver estimate distance and trajectory.
• Night Vision/Low-Light Capability: Many cameras are equipped with enhanced low-light sensors or infrared (IR) LEDs to provide a clear image even in dark conditions.
• Wide Viewing Angle: Essential for comprehensive coverage, typically offering 120 to 170 degrees of view to minimize blind spots.
• Weather Resistance: Since they are mounted externally, backup cameras are designed to be waterproof and dustproof (often with an IP67 rating or higher).
• Integration with Other Systems: Some advanced systems integrate with parking sensors (audible warnings) and Rear Cross-Traffic Alert (warns of approaching vehicles from the sides when backing out of a spot).
• Wired vs. Wireless:
  • Wired cameras: Offer a more reliable connection and typically higher video quality, but require running cables through the vehicle.
  • Wireless cameras: Easier to install as they transmit the video feed wirelessly, but can sometimes be susceptible to interference or have lower resolution.

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Vehicle alarm ultrasonic sensor

A vehicle alarm ultrasonic sensor is a type of motion sensor used in car alarm systems to detect movement within the interior of a vehicle when the alarm is armed. It's designed to provide an extra layer of security by catching intruders who might try to gain access by breaking a window or otherwise entering the cabin without opening a door. Here's how it generally works:

1. Emission of Ultrasonic Waves: When the car alarm system is armed, the ultrasonic sensor (or typically a pair of sensors, one on each side of the front of the vehicle, often mounted on the A-pillars) emits high-frequency sound waves. These sound waves are beyond the range of human hearing, hence "ultrasonic." These waves fill the interior space of the vehicle.
2. Monitoring for Echoes: The sensor continuously monitors the echoes of these sound waves as they bounce off the surfaces within the car's cabin (seats, dashboard, windows, roof, etc.). This creates a consistent pattern of reflected waves.
3. Detection of Disturbance: If an intruder enters the vehicle, or if there's any significant movement within the cabin (e.g., someone reaches in through a broken window, or a pet is left inside and moves around), this movement disrupts the established pattern of the ultrasonic waves. The sound waves bounce back differently, indicating a change in the air pressure or the environment within the car.
4. Alarm Trigger: When the sensor detects this disturbance or change in the reflected wave pattern, it signals the car's alarm system. The alarm then triggers, typically sounding the horn, flashing the lights, and in some cases, activating a dedicated siren.

Key Characteristics and Benefits:

• Interior Protection: Its primary purpose is to detect intrusion into the passenger compartment, complementing other sensors like door, hood, and trunk sensors.
• Invisible Barrier: It creates an "invisible" protective barrier within the vehicle's cabin.
• Sensitivity: Ultrasonic sensors are quite sensitive and can detect even minor movements, which makes them effective against various forms of unauthorized entry.
• False Alarm Reduction: Quality ultrasonic sensors are designed to minimize false alarms. However, factors like leaving windows open, a sunroof ajar, or having pets or large insects inside the car can sometimes trigger them.
• Compatibility: They are often integrated into factory-installed alarm systems in newer vehicles, but can also be added as aftermarket components to enhance existing security systems.
• Adjustable Sensitivity: Many systems allow for adjustment of the sensor's sensitivity to tailor its performance to different environments or situations.
• Not for Convertibles: Due to their reliance on enclosed air space and reflected sound waves, ultrasonic sensors are generally not suitable for convertibles or vehicles with soft tops, as the open or flexible roof would not properly reflect the sound waves, leading to false alarms or ineffective monitoring.

In summary, a vehicle alarm ultrasonic sensor acts as an interior motion detector, using high-frequency sound waves to safeguard your car's cabin against unauthorized entry or movement.

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Car alarm shock sensor

A car alarm shock sensor is a critical component of a vehicle's security system designed to detect physical impacts or vibrations to the car. Its primary purpose is to trigger the alarm if someone attempts to break into the vehicle, tamper with it, or even tow it away. How it Works: The core principle behind a shock sensor is that it measures the intensity of vibrations or impacts. Most modern shock sensors are piezoelectric or electromagnetic, and they typically work in a dual-stage manner to reduce false alarms:

1. Detection of Vibration/Impact:
   • When the car experiences a physical disturbance (e.g., a window being hit, someone trying to pry open a door, a car next to it bumping it, or even a strong bass from a passing vehicle), the shock sensor registers this as a vibration or impact.
   • Internally, the sensor often contains a small weight or a piezoelectric crystal that moves or generates a voltage when subjected to mechanical stress. This movement or voltage change is converted into an electrical signal.
2. Sensitivity Adjustment and Dual-Stage Triggers:
   • Modern shock sensors are usually adjustable in terms of sensitivity. This is crucial to prevent false alarms from minor disturbances (like a loud truck passing by or someone lightly tapping the car).
   • Many high-quality sensors are dual-stage or multi-stage:
     • Light Impact (Pre-warning/First Stage): If a minor impact or vibration is detected (e.g., someone bumps the car, or a strong wind rattles it), the sensor sends a "pre-warning" signal to the alarm control unit. This typically results in a short series of chirps from the alarm or a warning flash of the lights. This is designed to deter a potential intruder without fully setting off the alarm.
     • Heavy Impact (Full Alarm/Second Stage): If a more significant impact or sustained vibration is detected (e.g., a window being smashed, a door being forced open, or the vehicle being jacked up for wheel theft), the sensor sends a "full alarm" signal. This triggers the main alarm, sounding the siren, flashing the lights, and potentially sending an alert to the owner's remote or smartphone.

Types of Shock Sensors:

• Single-Stage: Triggers the full alarm for any detected shock above a certain threshold. (Less common in modern systems due to false alarm potential).
• Dual-Stage (or Dual-Zone): As described above, offers a warning chirp for light impacts and a full alarm for heavy impacts. This is the most common and effective type.
• Digital Shock Sensors: These are more advanced, using microprocessors to analyze the vibration patterns. They can often differentiate between different types of impacts (e.g., a window break vs. a passing truck) and are less prone to false alarms.
• Integrated with Other Sensors: Some advanced alarm modules now combine shock sensing with other functions like tilt sensing (to detect towing) or even glass-break detection (listening for the specific sound of breaking glass) into a single unit (e.g., Compustar's FT-DAS-II sensor).

Benefits:

• Early Detection: Can detect an attempted break-in before a door or hood is even opened.
• Comprehensive Protection: Provides protection for the entire vehicle body, including windows, wheels, and the undercarriage (against jacking).
• Deterrent: The warning chirps often scare off potential thieves.

Considerations (especially in a city like Surrey, BC):

• Sensitivity Adjustment is Key: Proper installation and calibration of the shock sensor are crucial. If it's too sensitive, it will cause false alarms due to loud vehicles, thunder, or even heavy rain. If it's not sensitive enough, it might not detect a genuine threat. Professional installation is highly recommended to ensure optimal performance.
• Environmental Factors: Vibrations from heavy trucks, construction, or even strong winds can sometimes trigger poorly adjusted sensors.
• Not a Standalone Solution: While important, a shock sensor is usually part of a comprehensive alarm system that also includes door/hood/trunk sensors, and sometimes ultrasonic or tilt sensors for maximum protection.

In essence, a car alarm shock sensor acts as the vehicle's "nervous system," feeling for any unwanted physical contact and alerting you (and others) if a threat is detected.