Vtech Open-closed Sensor

Vtech Open/closed Sensor Open/closed Sensor Ulecertified Place Nearly Anywhere In Your Home Including On Windows Doors And Medicine Cabinets Accessory Device Only Program Your Monitoring System To Alert You When The Window Door Or Cabinet Opens Or Closes Easy Diy Installation No Monthly Monitoring Fees Digitally Encrypted Communications 2year Battery Life Compatible With The Dm271 And Vc7151 Series Products Brand: Vtech