https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions
Product Info
EM255 EXIT Button

EM255 EXIT Button

Shenzhen P&H Electronic Co., Ltd.
Region: China
Update: 05/09/2012
Key Specifications
* Exit Button used in access control or home security system

* High quality OMRON Switch

* Switch Plate Material: Aluminum

* Operating temperature:-25°C~+105°C

* Contact mode: COM, N/O, N/C

* Operating voltage: 125VAC

* Load current: 5A

* Switch withstood voltage: 250VAC

https://www.asmag.com/project/resource/index.aspx?aid=16&t=secutech-made-in-taiwan-products-and-solutions