This sensor alerts you to a bite during nighttime surf fishing by detecting the tilt of your rod with sound and light! Essential for surf fishing! Features: * Loud alarm volume * LED lamp (white) flashing - do not look directly at it ⚠️ The body is made of break-resistant ABS resin, making it resistant to impacts such as drops. This depends on the conditions of use. The sensor is IPX4 water-resistant, so you don't have to worry as much about water getting in on rainy days and the sound not working, but you can also put it in a plastic bag, etc. ⚠️ IPX4 water resistance: Safe to touch with wet hands or get splashed with a little rain or water. Many products, such as mobile phones, digital cameras, and emergency radios, fall into this category, and it's the minimum level needed for kitchens and outdoor use. Protected against harmful effects from water spray from any direction. Tested with 10 liters/minute of water sprayed from all directions from a height of 300-500mm for 10 minutes. Splash-proof. Not sold in fishing tackle stores. Clip-on type (rust-resistant) for easy attachment and removal. This clip securely holds the rod and has a rubber coating to prevent scratches. The sound and light are designed to be heard and seen even in the sea breeze, but because they are handmade, there may be slight variations in the sound and light. Please understand. Uses two AAA batteries. Economical. How to use: Pull out the sensor's pull-out pin. When tilted (on), the alarm sounds and the LED lamp flashes. Push the pin in (off). Caution ⚠️ The pull-out pin does not come out completely. It remains attached to the main unit. The screws are stainless steel, but for the bell, spring, and pull-out pin, apply a lubricant (such as silicone oil) after fishing to prevent rust. The sensitivity of the sensor can be adjusted depending on the angle, so adjust it each time you use it. \#TamanSensor \#HitSensor \#AtariSensor (Bite Sensor)