Fangrui Product Details 41a5034 Garage Door Sensor Compatible With All Garage Door Openers Manufactured By For /for /for /for /for After 1997. Our Product Perfectly Replaces The Old Sensor, Replaces 041-0136, G801-.2610459,012381050345,s5-041a5034,041a5034. Note: Be Sure Power Is Not Connected To The Garage Door Opener Before Installing The Safety Reversing Sensor. 41a5034 Lifemaster Garage Door Sensor Emits An Light On The Inside Of The Garage Door, Which Automatically Reverses Whenever There Is An Obstacle Before Any Damage Can Be Done To Prevent Accidents. Colour:as Shown Material:metal + Plastic Package Contents: 2 X Safety Sensor (receive And Transmit) (with Connecting Wires) 2 X Mounting Screws 2 Nuts 2 X Brackets 5 X Wire Crimp Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.