NOTICE: I am in NO WAY affiliated with, nor do I do any business with, or have any contact with anyone at Cordex. This is NOT an advertisement for Cordex – I just had a chance to play with one of these this weekend and was very impressed with it. For years, we wished we had a camera for HAZLOCs instead of getting a Hotwork Permit and walking around with an LEL detector. Well now we have one! Not sure if there are others on the market so you will certainly want to shop around before purchasing, but this one I can attest to! Click Here (external link to Cordex) for more on this camera.