In the field of vehicle signaling, quality is crucial, especially when it comes to reverse alarms. These devices must function reliably under various conditions to ensure safety. Unfortunately, some manufacturers opt for cost-saving methods by using cheaper fillers, such as resins mixed with sand, in the production of these alarm systems. While this reduces production costs, it introduces significant drawbacks that negatively impact the performance and durability of the product.

Consequences of Using Sand-Mixed Resins:

1. Reduced Sealing and Water Resistance:​ Pure black resin provides excellent water and moisture resistance, ensuring that the internal components of the alarm remain well-protected. However, adding sand can cause micro-openings, reducing the effectiveness of the seal, leading to moisture infiltration and eventual failure.
   
   
2. Poor Vibration Absorption: A high-quality, pure resin effectively absorbs vibrations, which is essential for protecting internal components from damage due to movement. Sand-mixed resins have lower vibration absorption, which can result in a shorter lifespan for the device.
   
   
3. Inconsistent Sound Quality: The uniform structure of pure resin ensures stable and consistent sound output. The use of sand mixtures can cause uneven material distribution, affecting speaker resonance and resulting in variations in sound signals.
   
   
4. Reduced Durability: Pure resin offers high resistance to environmental factors and maintains its integrity over time. Adding sand, however, can lead to internal stress due to differences in expansion coefficients, which over time may cause cracks and structural degradation.
   
   
5. Weight and Cost Considerations: While adding sand reduces weight and material costs, it compromises overall product quality and reliability.
   
   

At AEB, we are committed to delivering high-quality reverse alarms that utilize pure black resin in the production process. This choice ensures superior sealing and durability, as well as consistent and reliable performance under all conditions. We firmly believe that investing in quality is essential to ensure the safety and satisfaction of our customers.

When selecting a reverse alarm, it is important to look beyond price alone. The materials and manufacturing processes used directly affect the performance and lifespan of the device. By choosing products made with high-quality pure resins, you are investing in vehicle safety and reliability, contributing to a safer environment for everyone. ​