XJ-01 Wireless Fish Detector 125KHz Sonar Sensor 0.6-36m Depth Locator Fishes Finder with 2.4 inch LCD Screen & Antenna, Built-in Water Temperature Sensor Commercial Lighting no need for external power

no need for external power supply

the sound quality is clear

support USB fast charge 2A output

Charging cut-off current: 0

Spectral response: 8μm-14μm

XJ-01 Wireless Fish Detector 125KHz Sonar Sensor 0.6-36m Depth Locator Fishes Finder with 2.4 inch LCD Screen & Antenna, Built-in Water Temperature Sensor Commercial Lighting no need for external power1. Depth range: 0. 6 36m 2. Sonar frequency: 125KHz 3. Radio frequency: 2. 4GHz 4. Sonar beam angle: 45 Degrees 5. Wireless operating range: 100m 6. 2 modes: sonar graphic mode and stationary float mode 7. 10 levels of sensitivity 8. 11 levels white LED backlight 9. Can set fish alarm, depth alarm, contrast, chart speed (10 grades), fish display, unit (depth: meter feet, temperature: Celsius Fahrenheit) 10. Water bottom contours and structure are