DC Manual Multiple Wire System Safety Fire Pull Station Alarm Button?Fire Alarm Button for 9-28V Call Point Safety

Specification: Condition: 100% Brand New Item Type: Fire Alarm Button  Color: As the Picture Shows Operating Voltage Range: DC 9-28V Alarm Resistance: 470Ohm / 1W Operating Humidity Range: Relative Humidity 10%-93%, no Condensation Operating Temperature Range: -10°C-50°C (14°F - 122°F) Package List: 1 x Fire Alarm Button  2 x Key  1 x Instruction Manual  Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.