RISWOND Motion Sensor Alarm_ 500 Feet Wireless Motion Detector for Home Security with 32 Tunes_ 5 Volume Levels_ LED Indicators_ Store Door Entry Chime Doorbell_ 1 PIR Motion Sensors and 1 Receiver

Wireless PIR detector adopts smart analysis algorithms and digital infrared processing technology featuring two-core and fuzzy logic, which boasts this detector can resist jamming signal and prevent a false alarm. Environment friendly, energy-saving, and easy and secure to install, we suggest you use them in residential areas, real estate villas, factories, shopping malls, warehouses, and office buildings, and other places. Business or Home Use: Never miss anyone coming through your door with a RISWOND Wireless Entry Alert Doorbell. Businesses can benefit by having one at the front door for retail customers and the back door for deliveries. Homeowners can utilize it at the front door, back door, mailbox, garage. Specifications: Recriver Technical Parameters: *Maximum 500 ft / 150 m operating range in open area *32 unique ringtones *5 volume levels *LED indicators *Working voltage: 100?240V 50?6?Hz AC *Standby current: <3mA (220V AC) *Working current? <11mA (220V AC) *Wireless frequency? 433MHZ Detector Technical Parameters: Power:  DC5V Adapter or 2 AAA batteries Standby Current: ?50uA Working current: ?25mA Detection range: 4-8M/90° Frequency: 315mhz/433nhz ± 75khz Material: ABS plastic  Package Contents: 1* receiver  1* motion sensor transmitter. 2* AAA Batteries 1* mounting bracket  1* user manual