Adrian put finger to keyboard:

On Fri, 25 Oct 2013 20:10:17 +0100, Dave wrote:

How does one go about checking correct operation of gas oven

http://www.amazon.co.uk/dp/B009ALK4E2

Nice solution to the problem, but is it just me or does anyone else
dislike the way the temperature markings at the extremes are inverted to
be the "right way up"?