𝐇𝐢𝐠𝐡 𝐕𝐢𝐬𝐢𝐛𝐢𝐥𝐢𝐭𝐲 𝐆𝐫𝐞𝐞𝐧 𝐋𝐢𝐪𝐮𝐢𝐝 𝐒𝐲𝐬𝐭𝐞𝐦:Featuring green crystal liquid (30% clearer than traditional white liquid), our RV level resists fading for 10+ years of vivid visibility. Bold -7° to +7° numerical scale with inch-level adjustment marks ensures quick, mistake-free readings day/night 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐲-𝐋𝐞𝐚𝐝𝐢𝐧𝐠 𝐃𝐮𝐫𝐚𝐛𝐢𝐥𝐢𝐭:Built with ABS plastic housing + flex tube assemblies that withstand -40°F to 180°F extremes, rain, and impacts. IP67 waterproof design ensures reliable performance even in submerged conditions. 𝐏𝐫𝐞𝐜𝐢𝐬𝐞 𝐁𝐢-𝐃𝐢𝐫𝐞𝐜𝐭𝐢𝐨𝐧𝐚𝐥 𝐋𝐞𝐯𝐞𝐥𝐢𝐧𝐠:4-pack system monitors front/back + left/right tilts simultaneously. Damped fluid technology provides ±0.1° accuracy, while tilt-to-inches markings eliminate guesswork for perfect RV/boat balance 𝐒𝐜𝐫𝐞𝐰 & 𝐀𝐝𝐡𝐞𝐬𝐢𝐯𝐞 𝐃𝐮𝐚𝐥 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧:Includes heavy-duty adhesive for quick no-drill mounting + 8 stainless screws for permanent secure fixing. Works on any flat surface: RV exteriors, trailers, boat decks, and more. 𝐔𝐥𝐭𝐫𝐚-𝐕𝐞𝐫𝐬𝐚𝐭𝐢𝐥𝐞 𝐎𝐮𝐭𝐝𝐨𝐨𝐫 𝐔𝐬𝐞:Ideal for RVs, campers, travel trailers, boats, trucks, and off-road vehicles. Essential for leveling on slopes, uneven terrain, or docks – 10-year warranty backs its mechanical zero-maintenance design. Level bubble glide smoothly through damped fluid following the incline of the car or boat, instantly showing the degree of incline, according to scale on shell, accurately indicating the Angle that needs to be raised or lowered