Secrui Door Chime With Adjustable Volume Wireless Entry Alert With 52 Chimes 500Ft Rage Door Open Sensor Alarm For Home/Busin Aviation GPS Compatible With Both 50Hz And

Compatible With Both 50Hz And 60Hz

allowing for secure attachment and comfortable positioning on your belt

5-inch form factor with 7mm thickness

H13 true HEPA filter

Opens/Shorts Robust Die Cast Housing Bail Latch Style Ejector Mechanism Unshielded And Shielded Cable Support

Secrui Door Chime With Adjustable Volume Wireless Entry Alert With 52 Chimes 500Ft Rage Door Open Sensor Alarm For Home/Busin Aviation GPS Compatible With Both 50Hz AndThis Door Open Alarm For Home Business Office Retail Store Kids Installs Tool Free To Nearly Any Door Or Window To Notify You Of Any Unwanted Entry. The Wireless And Portable Design Allow You To Install The Wireless Door Entry Alert In Any Section Of Your Home, Or Business. Expandable (Up To Door Sensor 40Pcs) You Can Choose One For The Front Door And A Different One For The Back Door. Then You Will Be Able To Distinguish Which Door Is Being Opened.