Anti-Theft Alarm System with Auto-Sensing The remote control features Auto-Sensing Technology, allowing hassle-free operation. Simply keep the remote in your wallet or a discreet location—no manual input required. This discreet design ensures your car’s security remains undetectable, even to close friends. Politely decline unauthorized car borrowing and deter thieves with this invisible safeguard Circuit Hidden Lock Mode (Default – Recommended for Stability) Factory default setting (no short-circuit ring inserted). Engine stays active once started, even if the remote signal is lost during driving. How it works: After ignition, the system requires a remote signal within 16 seconds to keep the engine running. If no signal is detected, the engine shuts off only during startup—never while driving. Ideal for most vehicles to prevent accidental engine cutoffs caused by signal interruptions Anti-Robbery Mode (Advanced – Use with Caution): Activated by inserting the short-circuit ring (included). Engine requires continuous remote signal reception while driving. If the signal is lost for 30 seconds, the engine shuts off. Important: This mode may not suit all vehicles (e.g., those with Bluetooth interference). If your car experiences unintended shutdowns while driving, switch back to Hidden Lock Mode (remove the short-circuit ring). Effortless DIY Installation: Install in minutes! Simply: Locate your car’s fuel pump fuse (under the hood). Replace the fuse with the M506 main unit. Secure the device and close the hood. Pro Tip: Store the original fuse safely for future use Safety Reminder:Test modes in a safe environment before regular use. Avoid Anti-Robbery Mode if your vehicle experiences signal instability. The default Hidden Lock Mode provides reliable theft prevention without driving risks Product Feature:
1. Circuit hidden lock mode (no short-circuit ring is inserted in the unit inside) factory default mode
①If the car does not receive the signal from the remote control within 16 seconds after starting the car, the engine will turn off. The car can start normally if it receives the signal from the remote control within 16 seconds of starting. Even if it no longer receives the signal from the remote control, it will not turn off.
②Remote control operation:
(1) Manual mode: press the remote control every time or immediately after start-up.
(2) Automatic mode: Just bring the remote control.
③LED indication function: When receiving a remote control signal, the LED flashes once, indicating that the signal is normal, and no signal will not flash.

2. Anti-robbery mode: (the host inserts a short-circuit ring)
①When the host receives the signal from the remote control, the car can start normally, and it needs to continue to receive the signal from the remote control in the middle, otherwise, it will turn off after 30 seconds if the the signal is not received.
②LED indication: when the signal from the remote control is received, it flashes once for 1 second, when the signal is not received, it flashes 2 times per second for 11 to 20 seconds; when the signal is not received for 21 to 30 seconds, the LED flashes 4 times per second. (After 30 seconds Have not received the signal LED does not light)
③The remote control in anti-robbery mode must turn on the automatic mode, otherwise, it will turn off halfway due to no signal received.