Features BT Monitoring via Smartphone: With a maximum BT distance of 10 meters, download and install the app according to the manual, connect via BT, view all relevant data on the app, and set all functions through the app for this battery monitor. Battery Monitor: Compatible with 10‑100V 0‑50A batteries, this battery monitor is suitable for acid, LiFePO, lithium ion, ni hydrogen batteries. Widely used in RVs, cars, electric motorcycles, boats, etc. Multi Function Accuracy Measurement: Battery monitor displays power, voltage, current, remaining capacity, charger and discharge, estimated charger and discharge time, capacity percentage are all displayed clearly on the 1.8 inch screen. Multiple Installation Methods: Battery monitor can be embedded, multiple bracket installations, package includes handlebar bracket, shunt can be stably installed with the built in bracket. Display screen fixed with tab. (The manual provides detailed installation instructions) 1.8 inch HD Color LCD Screen: Battery monitor features optimized interface with larger, clearer text. Silicone keys for smoothly operation and quick response, providing a comfortable touch. Spec: Item Type: Smart Battery Monitor Material: ABS, Stainless Steel, Silicone Screen Size: Approx. 1.8 inches / 4.57cm Sampling Method: Shunt Current Measurement Range: Approx. 0-50A Current Resolution: Approx. 0.001A Capacity Display Range: Approx. 0%-100 percent Power Measurement Range: Approx. 0-5KW Power Resolution: Approx. 0.01W Ah Measurement Range: Approx. 0-9999AH Capacity Resolution: Approx. 0.1AH BT Communicate Distance: Approx. 10m / 32.81ft unobstructed Current Accuracy: ±2%+0.002A Display Power Consumption: Approx. 0.75W Screen Off Time: 20 seconds auto off during charging; screen on when I≥15ma, off when I20s How to Use: Follow the instructions manual to learn how to use the product. Package List: 1 x Display 1 x Sampler 1 x 3 Meter Cable 1 x 1 Meter Positive Pole Cable 1 x Handlebar Mount Bracket 1 x User Manual Package List 1 x Display 1 x Sampler 1 x 3 Meter Cable 1 x 1 Meter Positive Pole Cable 1 x Handlebar Mount Bracket 1 x User Manual