ขาย 3C KERUI M7 433MHz Smart Doorbell Wireless Shop Store Welcome Door Entry Chime Night-Light with 1pcs Wireless Infrared M ราคาที่ดีที่สุด

Notice  1. Please try to use high-quality alkaline batteries or rechargeable batteries. It can use the USB data cable to recharge.  2. Non-professionals do not attempt to repair.  3. Do not installed the product in the place exposed to rain and directly sunlight. Overview: It's not only a doorbell but also an alarm system, can work with KERUI remote controls, doorbell buttons, sensors and detectors. Features: *Contains 1pcs Doorbell Alarm Host + 1pcs PIR Motion Sensor. With power-saving design. *Ceiling/door/window/curtain PIR sensor, with imported sensors, infrared processing chip. *Integrate with the function of welcome mode, Alarm mode, doorbell mode, night light mode. *Support the accessories with code EV1527/PT2262. Can add maximum 30pcs accessories (including detectors and remote controls). *32 songs optional, with 4 Volume levels adjustable.  Specifications: External Adapter: USB adapter 110-220V  Battery Type: DC 9V  6F22(included) Standby Current: ≤50uA Alarm Current: ≤20mA Wireless transmitting frequency: 433MHZ (+75KHZ) Wireless distance: 100 meters in open area Detection distance: 8-12 meters Detection Angle: 110 degrees(level), 15 degrees(vertical) Shell material: ABS plastics Operating temperature: 80% or (no condensation)  Package Information: Package Size: Approx. 17.3 * 10.5 * 3.9cm / 6.8 * 4.1 * 1.5in Package Weight: Approx. 188g / 6.6oz         Package List: 1 * Doorbell Alarm Host 1 * Doorbell Mounting Bracket 1 * Wireless PIR Motion Sensor 1 * PIR Sensor Mounting Bracket 1 * Set of Mounting Screws 1 * User Manual