Review on 🔔 Coghlan's Function Whistle: A Reliable and Versatile Outdoor Survival Companion by Drexel Wortham

The whistle and compass work well but the plastic on the top of the thermometer warps, breaks and warps easily. This is probably due to the heat exposure as I left it in the car last summer. If that mistake was mine, learn from it. The magnifying glass works well despite the plastic deformation of the rim. It takes a bit of nail work to lengthen the lens, but that probably helps protect it. The thermometer's maximum temperature is 120F/50C (122F), so keep that in mind if it's ever exposed to heat. At the time of writing this comment it is winter but summer is coming. I'll keep it until I have the budget to replace it with a better one, but for now I'm leaving it at home. It would be nice if Revain or Coghlan replaced it, but that's very unlikely; bought in 2019 :(