Motion Sensor Door Bells Chimes for Business, Welcome Door Buzzer, Commercial Wireless Security Storefront Bell, Motion Sensor Alarm with Remote… - Changzhou Hengdun Electronic Technology Co Ltd, SF20R

• ✅EASY, FAST, WIRE FREE INSTALLATION sensor detects motion when entering and sends a signal to the receiver. With wireless remote control, it is more convenient to operate. ✅SELECTABLE RINGTONES the receiver is a doorbell design with 36 different ringtones from melody sounds to simple basic buzzfor personal preferences and 5 welcome songs for retail business use. ✅ WIDE RANGE The transmission range of the door chime/alarm is up to 918ft (between detector and receiver) and detection range of the infrared sensor approximately 13-26ft to keep you informed and safe. ✅ MULTIPURPOSE motion activated sensor chime, door alarm,mailbox alert,retail business welcome doorbell,visitor chime for shopkeepers and Wander pet cat dog monitor alarm. ✅Adjustable Volume and Light Mode 4 STAGES ADJUSTABLE VOLUME (Loud/High/Middle/Low ) 113-25dB. Batteries and USB dual power supply., Manufacturer: Changzhou Hengdun Electronic Technology Co Ltd