Suggested Retail: $37.97. Besimlive Wireless Door Open Alarm Contact Sensor 1,000 ft Range 58 Chimes 5 Adjustable Volume Door Ringer Alert for Home/Business, Black - This Besimlive Wireless Door Open Alarm Contact Sensor ensures your home security. With a range of up to 1,000 ft in open areas, it alerts you when a burglar opens the door or window. The sensor comes with a household alkaline battery and has an Ultra-Low-Power design, lasting for up to 7,200 uses. It features 5 adjustable volume levels from 0-110 dB. Brand: Besimlive Model: 1T1-BK -- LOT STICKER: TCE-BOX-BOXTCEC0525-ITEM-850772d6___LPNPMCG5303865 Door Chime, Besimlive Wireless Door Open Alarm Contact Sensor 1,000 ft Range 58 Chimes 5 Adjustable Volume Door Ringer Alert for HomeBusiness When Entering, Black, 1 Plugin Receiver 1 Transmitter -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.