1、LED INDICATOR FOR POWER STATUS: The T slot router location is equipped with LED indicator lights to display power failure and fault alarms as well as power status. 2、AUDIBLE ALERT: With a 120dB sound, this power failure alarm emits a loud alert when the power is cut off, ensuring you are promptly notified until power is restored. 3、MANUAL SILENCE SWITCH: The alarm features a convenient on/off switch for manual control over the alert, allowing you to easily silence the alarm when needed. 4、SWAP BATTERY DRAWER DESIGN: The drawer style battery cover allows for effortless battery replacement, ensuring continuous functionality. 5、HIGH VOLTAGE DURABILITY: Designed to withstand high voltage, this power cut alarm can operate normally even if the power voltage exceeds standard levels. Item Type: Power Failure Alarm Material: ABS Power Output/Failure Alarm with LED Indicator Light Audible Alarm when Power is Cut Off, Continues Until Power is Restored Alarm can be Silenced by On/Off Switch LED Indicator Light Shows Power Status High Voltage Tolerant Design, Works Normally Even with Overvoltage Drawer Unit Cover Design for Easy Battery Replacement Usage: Connect the Alarm with 220V Power Supply, Turn on the Power Switch Size: Approx. 10 x 5.3 x 2.5cm / 3.94 x 2.09 x 0.98in Cable Length: Approx. 55cm / 21.65in Alarm Volume: 120db Power: 1 x 9V Battery (Delivery Without Battery) Color: White 1 x Power Failure Alarm