One of the models is enough the red laser light is smaller and easier to carry on keys and most popular - so I carry it, to show people it.
Green model is brighter and better in day light.
I have supplied RNLI sea safety team with samples on there Request and they have been tested and now recommended as below:
They are NOT s replacement for Orange Smoke or Parachute.
NOT a primary means of distress - but secondary means Of guiding rescuer to your location as I said once PLB or VHF is used etc.
Feed back was the NAME flare gave people the wrong expectation, but Rescue Laser by it self would been better - expectations and all .
Daylight range : around 3miles
Night range : around 25 /30 miles
an independent review:
As all safety equipment it's having a variety of options to use - and the Greatland Rescue laser is SMALL Effective bit of Kit that can AID your rescue.
All new models supplied has the new fore sight to aid aiming.