Feature: 1. BL105F Battery Monitor: Compatible with 10‑100V batteries, including acid, lithium iron phosphate, lithium ion, ni hydrogen batteries and more. Widely used in RVs, cars, electric motorcycles, boats for battery monitoring. 2. Accurate Measurement: The battery monitor displays power, voltage, current, remaining capacity, charge, discharge, estimated charge, discharge time, capacity percentage on the clear screen for easy reading. 3. BT Monitoring: With a BT communication distance of up to 10 meters, download and install the APP according to the manual, connect via BT to view all related data on the APP and set all functions through the mobile APP. 4. 1.8 inch HD Color LCD Screen: Upgraded interface with larger and clearer text. The keys are made of silicone material for smoothly operation and quick response, providing a comfortable touch. 5. Various Installation Methods: Embedded installed, various bracket installations. The package comes with an embedded bracket, and the shunt can be stably mounted with its own bracket. The display is fixed by a card tongue. (The manual provides detailed installation instructions) Specification: Item Type: Smart Battery Monitor Material: ABS, Stainless Steel, Silicone Screen Size: 1.8 inches Sampling Method: Shunt Voltage Testing Range: 10-100V Voltage Resolution: 0.01V Current Measurement Range: 0-50A Current Resolution: 0.001A Capacity Display Range: 0% to 100 percent Power Measurement Range: 0-5KW Power Resolution: 0.01W Ampere-hour Measurement Range: 0-9999AH Capacity Resolution: 0.1AH BT Communication Distance: Up to 10 meters without obstacles Voltage Accuracy: ±1%+2 digits Current Accuracy: ±2%+0.002A Display Power Consumption: 0.75W Screen Off Time: During charging, screen off after 20 seconds; during discharging, screen on when current ≥15mA, screen off when current <15mA and >20s . Package List: 1 x Monitor 1 x Sampler 1 x 3 Meters Communication Cable 1 x 1m Positive Cable 1 x Bracket 1 x Manual