"It continues to ring even if the power is cut off. A siren to protect against a last-ditch attack."

The Yupiteru Serial Backup Siren is a highly reliable security siren powered by a built-in battery that continues to operate even if the vehicle's main battery is cut off. In response to the recent proliferation of theft tactics based on "battery cut" and "power cutoff," this siren switches to autonomous operation the moment the power is cut off and continues to alert those around with a loud noise. Designed specifically for serial communication with Yupiteru security systems, it features few malfunctions and high signal stability. Despite its simple appearance, it's a highly effective device that performs well even when targeted. The built-in battery is a consumable item, so it should be replaced approximately every 3 to 5 years. Regularly replacing it before its performance gradually declines can prevent the risk of the siren failing to sound when needed. The overall quality of your security system is determined by the accumulation of these **inconspicuous yet important parts**.
Serial backup sirens are a surefire insurance policy that will take your
system reliability to the next level.