Thermal and your gas bottle, take out the guess work! Using Night Tech XD35 Thermal Monocular 

Hi everyone, take the guess work out of the BBQ bottle and make sure you are not going to run out half way through your BBQ. Simply grab your thermal scope or monocular and a jug of hot water out of the tap and reveal exactly how much there is left in the bottle! Night Tech XD35 was used in this example.
/ mrbhuntingdownunder

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