Advanced Monitoring: The Coulomb Meter is your go-to device for precise monitoring of both lithium and lead acid batteries. It provides real-time data on voltage, current, and battery capacity, ensuring your RV or other battery-powered systems are always running efficiently. WiFi Connectivity: Equipped with WiFi capabilities, this meter allows for remote monitoring through your smartphone or computer. Stay updated on your battery's status from anywhere, enhancing convenience and safety. and Reliable: Designed for and reliability, the withstands the rigors of daily use in any demanding environment. Its robust construction guarantees long-term performance. Easy Installation: This meter is user-friendly with an easy installation process that doesn't require professional help, making it perfect for DIY enthusiasts. Due to different batches, there may be differences in product appearance and printed text, which not affect use. Type:KM140F Colour:Black Material:Plastic Package Contents: 1 * Coulomb Meter kit 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.