The wireless PIR motion sensors is without antenna, specially popular in Europen market; Power Requirements: DC 9V; PWorking current:7mA~8mA (While sending); Standby current: 45uA(While monitor); Operating Freqency: 315±0.2MHz / 433±0.2MHz; The largest coverage:12 x 12m; Visual Angle:110 degree; Bracket Adjustable Angle: -45~45 degree (Horizontal line); Bracket Adjustable Angle: -15~45 degree (Vertical line); Response Time: 6s; Coding Type: Fixed code; Lifespan of battery: It can be used half year if send 20 times everyday; Operating Temp:-10~+50'C