night dive marker light

hi all, looking for a dive beacon / marker to keep an eye on my dive buddy (and vice versa) in low vis environment or night diving. Also, when diving with my daughter, she gets easily distracted and can follow a fish during a night dive, so i need to make sure she is in my field of view. I only...

Innovative Scuba Marker Light Review (and Giveaway) I love these little flashing marker lights. They come in 3 colors: Green, Blue and Red. Turns on and flashes when in water. They’re potted/sealed, so completely waterproof, instead of a replaceable battery. Virtually indestructible. Rated for...