By comparing these two devices side by side, M 27 and M25 are almost identical. From the installation bracket, CPU, wiring, and interference head, M-27 is no different from its brother. Blinder is ready to use out of the box, including all necessary wiring, external speakers, CPU, and two GPS shielding heads.
Overall, the M27 is a high-quality and high-performance wifi blocker
M27 is suitable for small vehicles with a smaller appearance. M47 is used to cover weak points of small vehicles or protect large trucks or SUVs.
Installation is almost effortless. By becoming slightly familiar with automotive electronic devices, amateur installers can easily connect the device. All you need is a power supply and a ground wire. It is easy to wire the signal jammers head through a firewall through telephone type connectors, which are small enough to pass through the smallest hole. Then the rest is to install the GPS interceptor head. This is where it's a bit difficult.
The installation brackets are independent of each other, which means that each side of the jammer head is supported by separate brackets. For normal operation, the jammer head needs to be completely straight and level with the road surface. This means that in order to install the pan tilt correctly, you must find 2 independent and completely horizontal surfaces on the car. If installed on the top of the bumper, this may be easy, but most people do not want to clumsily place two large cell phone jammer heads at the front of the vehicle. It is difficult to complete the correct head installation on many vehicles, which is why most Lens hood users create their own mounting brackets.
Once the head is installed correctly, M27 has made significant improvements compared to the old version. With a more powerful head and fully upgradeable CPU, this new device is ready for all new laser Radar speed gun developed. In most cases, this device will interfere with the LiDAR all the way to the muzzle. However, Blinder did encounter some interference issues.
For certain guns, such as the Ultralyte LR-B, occasional malfunctions may occur. Independent testing has shown that vehicles equipped with two gps jammer heads at the front of the vehicle cannot cover high reflective areas such as headlights. This is a particularly undesirable situation, as police officers are often trained to aim their headlights when they are unable to produce instant and fast readings. To solve this problem, a headlight laser protective cover may be needed. Laser veil is a liquid coating applied to headlights. Applying this technology to the headlights will greatly help Blinder achieve better interference effects.
Another solution is Blinder M47. This is the M27 with two additional interference heads. If users encounter interference when using the M27, two additional heads are very suitable for achieving better results. Two additional jamming heads will enable the vehicle to be bulletproof against most laser Radar speed gun in almost all cases.
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