Electronic door lock door open button release button products are shipped according to the color or size of the main picture on the product page, if you have special requirements, please leave us a message. feature: * The exit switch button is made of flame retardant ABS, which is durable. *Used for access control (hand press, door opening) and alarm system. *Widely used in public entrance gates, public doors, homes, offices, hotels, etc. * Can also be used as an emergency call button with an alarm system to call for help in the event of a heart attack or fainting in the bathroom. *Easy to install and operate. Specification: Contact rating: 3A@36VDCMaximum output contact: NO/COMType: Automatic reset Mechanical life: 100,000 testsMaterial: flame retardant ABSApplicable to: no electricity/magnetic lockApplication: suitable for all kinds of door frame working temperature 10~ 55 degrees (14-131F) suitable for humidity 0-95% (relative humidity) Item Size: Approx. 86 * 86 * 32mm (L*W*H) Item Weight: Approx. 40g/1. 4ozPackage Information: Package Size: Approx. 10*10*3.5cm / 4*4*1. 4inPackage Weight: Approx. 46g/1. 6ozPacking List: 1* Door Exit Switch 1* Mounting Screw Bag