Maxsa Innovations Park Right Dual Laser Parking unit is compared to the Daytona Brands Auto.Park 2 Laser Parking Guide and the Instapark solar parking guide. The perfect Parking Indicator, laser accurate to be exact. If you have a one or two car garage, this is the one you need. Accurate garage laser parking every time! Your answer is the Maxsa Park Right Dual Laser Parking Guide. Great Value! Safely Park in your Garage! Simple Solution-Laser Park plugs into any power source or you can use batteries to power it up. This unit utilizes laser technology to safely guide your car into a perfectly parked position every time your automatic garage door is activated. Simply press your remote control door opener and motion sensors automatically activates when vehicle enters the garage. Its laser guided parking for your garage. It's just that simple! STOP guessing when to stop. STOP bumping into garage walls. Two separate laser beams for both your precious vehicles. Each unit comes with one power supply, mounting hardware both tape or screws and two lasers. Also has a battery back up option so you can add (3) AA batteries for power failures or if you don't have AC power available. Compatible with ANY Automatic garage door opener. Automatic ON/OFF Easy to install in just minutes activated by motion! * No Wiring * No Tools * Hassle free * Motion Sensor Activated Package Includes the following: *Maxsa Park Right Dual Laser Parking Guide *Ceiling mounting screws or hook and loop tape included *Quick installation guide *Warranty registration *Power pack *Available option for (3) AA Battery Back-Up System *Instructions and warranty for 90 day warranty.