Applicable models The digital gauge fits middle drive motors M200 M300 M400 M420 M500 M510 M600 M620 G330 G510 G521 G522 G332. Please verify compatibility before purchase. Easy to read The digital speedometer delivers reliable performance across 24V 36V and 48V systems. View real time data at a glance on a large, easy to read screen for quick status checks while riding. Water resistant design The meter control panel is IP65 waterproof, providing reliable protection for the internal circuitry. Suitable for outdoor use in varying weather conditions. Convenient installation The speedometer is simple to install and remove without the need for complicated tools or procedures. Practical applications - Daily commuter upgrade: Install on an everyday e bike powered by 24V, 36V or 48V systems to monitor speed and ride status at a glance during city commuting. - Outdoor riding in all weather: IP65 rated panel enables use in rain, spray, and muddy conditions while keeping essential electronics protected. - DIY maintenance and upgrades: Quick replacement or upgrade of the meter without specialized tools, streamlining setup for hobbyists or workshops.