HENDUN Motion Sensor Door Bells Chime for Business, Commercial Music Doorbell, Retail Store Welcome Buzzer, Sleepwalker Elderly Toddler Safety Monitor, Pir Detector Alarm, Caregiver Reminder

Functions -body motion activated- Welcome the guest/customer/visitor in day time when they walk through, anti-thief in the night, prevent the loss of dementia patients,welcome /proximity /motion door alarm / color light etc five reminder, the secret assistant of the boss! - Remote transmission, 280m(918 feet) in an open place, suitable for more places - 8 chord music chip, 40mm big horn, more pleasant, more loudly - Colorful LED lights, brightness can adjust, can use different colors to distinguish different entrances, more intelligently - Independent alarm horn, maximum 113dB, can effectively deter thieves - Volume can adjust, have memory function when change the battery, more considerate and more comfortable - Applicable to all kinds of shops, upscale clubs, hotels, offices, factories, homes, store,garage, supermarket, boutique,door buzzer for business Application: split welcome doorbell, entering alert,sleepwalking alarm, family anti-theft, garage anti-theft, induction doorbell,mailbox chime,sensor light and colorful lights,sensor detector, door entry alert chime parts,induction doorbell,nursing homes, alzheimers door alarm,and so on The receiver host can max learning 32 infrade curtain to detect different entrance with its color light to distinguish the entrances Electrical instructions Receiver host using 3 5(AA) alkaline batteries or Micro USB supply power?all not Included?.ks-sf20r wireless noise maker doorbell Infrared curtain using 3 7(AAA) alkaline batteries or Micro USB supply power?all not Included?. Receiver host battery can use for 5 to 7 months (ring 30 times a day). Infrared curtain battery can use for 5 ~ 7 months (detect 30 times a day).