--- product_id: 806605026 title: "WiFi Coulomb Meter Power Volt-Ammeter for Lithium & Lead Acid Batteries RV Battery Capacity Indicator & Monitor KM105F" brand: "fuhjythy" price: "Β₯17360" currency: JPY in_stock: true reviews_count: 1 category: "Fuhjythy" url: https://www.desertcart.jp/products/806605026-wifi-coulomb-meter-power-volt-ammeter-for-lithium-and-lead store_origin: JP region: Japan --- # Real-time voltage & current WiFi remote monitoring Supports lithium & lead acid WiFi Coulomb Meter Power Volt-Ammeter for Lithium & Lead Acid Batteries RV Battery Capacity Indicator & Monitor KM105F **Brand:** fuhjythy **Price:** Β₯17360 **Availability:** βœ… In Stock ## Summary > πŸ”Œ Stay powered, stay connected β€” the smart battery monitor for the modern pro. ## Quick Answers - **What is this?** WiFi Coulomb Meter Power Volt-Ammeter for Lithium & Lead Acid Batteries RV Battery Capacity Indicator & Monitor KM105F by fuhjythy - **How much does it cost?** Β₯17360 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/806605026-wifi-coulomb-meter-power-volt-ammeter-for-lithium-and-lead) ## Best For - fuhjythy enthusiasts ## Why This Product - Trusted fuhjythy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Anywhere Access:** WiFi-enabled monitoring lets you check your battery status remotely via smartphone or PCβ€”never be caught off guard again. - β€’ **Built to Endure:** Rugged design engineered for daily use in demanding environments, ensuring long-term reliability. - β€’ **DIY Friendly Setup:** Simple installation means no professional help neededβ€”get up and running in minutes. - β€’ **Precision Battery Insights:** Track voltage, current, and capacity with pinpoint accuracy to maximize your battery life. - β€’ **Universal Battery Compatibility:** Seamlessly works with both lithium and lead acid batteries, perfect for RVs and off-grid setups. ## Overview The KM105F WiFi Coulomb Meter is a robust, easy-to-install power and capacity monitor designed for lithium and lead acid batteries. Featuring real-time voltage, current, and capacity tracking with WiFi connectivity, it empowers users to remotely monitor their battery health and optimize performance for RVs and other battery-powered systems. ## Description Fuhjythy Due to different batches, there may be differences in product appearance and printed text, which not affect use.Type:KM105FColour:BlackMaterial:PlasticPackage Contents:1 * Coulomb Meter kitOnly 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. Review: These work great and probably will be purchasing a third - This is my second unit. These work great and probably will be purchasing a third. However only one snag, in my experience they only support the newer WPA2-PSK and neither WEP nor WPA-PSK. It could be the device or the associated app or even my phone. Just strange that all my other devices including Phone, PC, laptop, various cameras, Smart Plugs and Lights all work on WEP or WPA-PSK. ## Features - 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. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0FF249F5S | | Best Sellers Rank | 796,179 in DIY & Tools ( See Top 100 in DIY & Tools ) 159 in Ampere Meters | | Brand | Fuhjythy | | Colour | black | | Country Of Origin | China | | Customer Reviews | 4.0 out of 5 stars 1 Review | | Manufacturer | Fuhjythy | | Number of items | 1 | | Unit Count | 1.0 count | | Unit count | 1.0 count | ## Images ![WiFi Coulomb Meter Power Volt-Ammeter for Lithium & Lead Acid Batteries RV Battery Capacity Indicator & Monitor KM105F - Image 1](https://m.media-amazon.com/images/I/510z8eGIRmL.jpg) ![WiFi Coulomb Meter Power Volt-Ammeter for Lithium & Lead Acid Batteries RV Battery Capacity Indicator & Monitor KM105F - Image 2](https://m.media-amazon.com/images/I/51jwmZZG7nL.jpg) ![WiFi Coulomb Meter Power Volt-Ammeter for Lithium & Lead Acid Batteries RV Battery Capacity Indicator & Monitor KM105F - Image 3](https://m.media-amazon.com/images/I/6143cUj4UeL.jpg) ![WiFi Coulomb Meter Power Volt-Ammeter for Lithium & Lead Acid Batteries RV Battery Capacity Indicator & Monitor KM105F - Image 4](https://m.media-amazon.com/images/I/51G5WSP3EWL.jpg) ![WiFi Coulomb Meter Power Volt-Ammeter for Lithium & Lead Acid Batteries RV Battery Capacity Indicator & Monitor KM105F - Image 5](https://m.media-amazon.com/images/I/61Ce4-L6FIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ These work great and probably will be purchasing a third *by P***K on 9 May 2026* This is my second unit. These work great and probably will be purchasing a third. However only one snag, in my experience they only support the newer WPA2-PSK and neither WEP nor WPA-PSK. It could be the device or the associated app or even my phone. Just strange that all my other devices including Phone, PC, laptop, various cameras, Smart Plugs and Lights all work on WEP or WPA-PSK. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/806605026-wifi-coulomb-meter-power-volt-ammeter-for-lithium-and-lead](https://www.desertcart.jp/products/806605026-wifi-coulomb-meter-power-volt-ammeter-for-lithium-and-lead) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-16*