Features: 1. Multi-wire manual alarm button designed for sound and light alerts during fire emergencies. 2. Conventional manual call point operated by advanced MCU expert algorithm software. 3. Press and pull the handle down to activate the normal alarm open control. 4. After tilting, the word "ACTIVE" appears in yellow at the top, and the handle protrudes from the bottom. 5. Convenient to operate, durable, and reminds people to evacuate during a fire. Product Details: Specifications: - Condition: Brand New - Type: Fire Alarm Button - Color: As shown in the picture - Operating Voltage Range: DC 9-28V - Alarm Resistance: 470Ohm / 1W - Operating Humidity Range: 10%-93% RH, no condensation - Operating Temperature Range: -10°C to 50°C (14°F to 122°F) - Package Includes: 1 x Fire Alarm Button, 2 x Keys, 1 x Instruction Manual - Note: The product may be shipped with new or old type randomly; please ensure you accept this before ordering.