This Stopper Station, pneumatic push button includes a flush mounted Universal Stopper protective cover with an internal horn. The push button is housed in a curved shell with EMERGENCY EXIT messaging. Switch rating 10 amps resistive at 120-240 VAC and has a timer range: 2 - 60 seconds (± 15%) with repeat accuracy ± 10%. Indoor use only. Not recommended for outdoor/water applications, temperature range of button 15 deg to 120 degF (-9 deg to +49 degC). Pneumatic adjustable timer opens or closes a circuit and has a timed delay before reset. No electricity to operate. Multicolor illumination bar 12-24VAC/VDC LED (LED color options: red, green, and white). Ideal for security applications. 1 Form Z, 1 N.O. and 1 N.C. contact. Part of the Stopper Station series, which is a multipurpose push button series that covers a wide range of applications both indoors and outdoors. This product's unique, curved design helps protect against accidental activation.