Product introduction:This products name manual pull station,also name fire alarm pull station,it  is used to manually transmitfire alarm signal, it provides contact closure to activate emergency equipment, audible and visual signals, and alarm panels.Fire alarm pull station is an active fire protection device, usually wall-mounted, that, when activated, initiates an alarmon a fire alarm system. In its simplest form, the user activates the alarm by pulling the handle down, which completes a circuit and locks the handle in the activated position, sending an alarm to the fire alarm controlpanel. After operation, some fire alarm pull stations must be restored to the ready position using a special tool or key in order to deactivate the alarm sequence and return the system to normal.Details introduction:1.The manual pull station provide a textured finger-hold area that includes Braille text. In addition toPUSH IN and PULL DOWN text, there are arrows indicating how to operate the station, provided for non-English-speaking people.2.Pushing in and then pulling down on the handle activates the normally-open alarm switch. Once latched in the down position , the word" ACTIVATED" appears at the top in bright yellow,with a portion of the handle protruding at the bottom as a visible flag.3.Resetting the station is simple: insert the key, twist one quarter-turn, then open the station's front cover, causing the spring-loaded operation handle to return to its originalposition. The alarm switch can then be reset to its normal(non-alarm) position manually(by hand) or by closing the station's front cover, which automatically resets the switch.Package:1 x Fire alarm call point2 x Keys1 x English manualSpecification:Product NameManual Call PointRated voltage24VDCRated current45mAQuiescent current .5mAAlarm current 2.3mAContact resistance100mWStarting parts typeReusableStarting modeManual pull down plateReset modeKey resetWeight225gDimensions105*140*45mmInstallation