Hopkins MFG 03-2304 The RV Smart Level features a combination of bubble and LED indicators, allowing for accurate readings whether measuring side-to-side or front-to-rear. Easily attachable with a stick-on design, it only requires a single AA battery (not included) for operation. Attributes Smart Technology Compatible: Not Compatible With Smart Technology Type: Bubble And LED Indicators Leveling Type: Side To Side And Front To Rear Size/Range: 4-7/8 Inch Length X 3-1/2 Inch Width X 1-1/8 Inch Height Mounting Type: Stick-On Quantity: Single Features & Benefits Makes Leveling A One-Person Job Level Your RV Quickly, Easily, And Accurately Bright LEDs Are Easily Seen From The Comfort Of The Drivers Seat Pivots To Provide Front-To-Back And Side-To-Side RV Leveling For Ultimate Compatibility Use A Hopkins RV Leveling Kit