Merkmak Wireless Portable Fish Finder 40M/120FT Sonar Depth Sounder Alarm Ocean River Lake

Specifications:
Depth Range Max/Min: 120ft(40m) / 2ft(0.7m)
Wireless sensor: 90-degree beam angle
Display: Big Adjustable High-contrast Dot matrix FSTN LCD 128Vx64H
Display size: 41Wx48H
Back lighting: On/off White LED
125KHz sonar frequency
Temperature unit: Celsius/Fahrenheit
Wireless operational Range: 328ft(100m)
Power Requirement: 4-AAA alkaline batteries ( Not included ) 1pcs 3V CR2032 Button Cell Battery for Sensor ( Not included )
Battery strength indicator
Levels sensitivity setting
Clear fish icon, fish alarm
Bottom contour: Show true changing of water bottom contour
User selectable meter or feet readings
Water Temperature Indicator
Waterproof design: Level-4 (spray-water-proof)
Memory: Built in memory stores sonar setting when the unit is turned off
W-Sensor could shut down when it is out of the water
W-Sensor battery life: Lasts for approximately 500hours of in-water use
Operational Temperature: -4F to 158F(-10C-50C)
Package included:
1 x Wireless Fish Finder
1 x Wireless Sonar Sensor
1 x External Antenna
1 x Neck Strap
1 x English Manual Quick Reference Guide

Product Features

• Battery strength indicator.Levels sensitivity setting.Clear fish icon, fish alarm
• Bottom contour: Show true changing of water bottom contour.User selectable meter or feet readings
• Water Temperature Indicator.Waterproof design: Level-4 (spray-water-proof)
• Memory: Built in memory stores sonar setting when the unit is turned off.W-Sensor could shut down when it is out of the water
• W-Sensor battery life: Lasts for approximately 500hours of in-water use.Operational Temperature: -4F to 158F(-10C-50C)