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No.:JB-F02 Fire Alarm Features:Accessory for special use in fire alarm system and security system When confirming the fire, alarm panel can be switched by panel to announce fore situation Made of aluminum alloy featuring with high sound level, lighter weight and easy installation By being equipped with good design in crank and pitman driven by DC24V motor, bell will give off alarm with higher reliability and low current consumptionSpecifications: Operating voltage: 24V DC±15% (no pole) Operating current: 23mA (24V DC) Dimensions: Ø152mm Sound level: >90dB (24V DC) Size: Ø150 x 56Installation and test: Installation: Includes bell and base First, fix the base on wall, connect wire out from bell to power and install the bell to baseTest: switch on power 24V DC to test alarm bell whether operating properlyDo not connect with high voltage, otherwise it will damage the bell Make sure the alarm hammer downward when install the alarm bell company feature: We specialize in the designing and producing of different kinds of doorbells, home security and safety products. Our products mainly include mechanical doorbells, bells, AC and DC PIR motion sensors, night lamps, smoke alarms, water alarms, pool alarms, personal alarms, indoor and outdoor PIR detectors, as well as emergency chargers. With strong production capacity, we are confident to meet various demands of our clients. We have independent laboratory and independent technical R&D department. The advanced management makes every department do prompt and correct reaction. Pro/E, Protel and AutoCAD are used at the process of product appearance design and circuit. ADDIT design shortens the period from exploitation to production. Many of our products have been approved of the CE, RoHS, UL and BS. We have obtained the ISO9001 certificate from the SGS for all our current operations. We have established good relationships with customers from Europe, the USA, Australia and Japan. We also offer OEM and ODM services for some famous electric product companies and manufacturers from Europe and Australia.