Detect electronic bite alarm

A modern device with a refreshed design.
A waterproof push-button bite alarm with large indicator LEDs that are clearly visible from a distance. It provides a 20-second post-bite indication and has a built-in battery-voltage meter.
1. Insert a 9 V battery into each transmitter, observing the correct polarity.
2. Switching on/off and volume control: Press and hold the V button for 2 seconds. The device responds with three short beeps and flashing LEDs. Press it again to switch it off after a beep. Briefly pressing V lets you choose from four volume levels.
3. Tone: Press the T button to select one of four tones, confirmed by a beep and the indicator LED (6) flashing.
4. Sensitivity: Press the S button to select one of four sensitivity levels to suit waves and wind conditions. (Level 1 is the most sensitive.)
5. Memory LED / voltage indicator: The red, blue or green light stays on for 20 seconds after a bite. If the battery voltage drops below 5 V, the LED starts indicating low voltage.

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• Waterproof
• Volume (dB): 4
• Tone (dB): 4
• Sensitivity (dB): 4
• Power supply: 9 V
• Swinger connection