Paterson Certified Thermometer 30cm 12"

Professional quality. Accurate. Responds to temperature changes quickly. Comes with a protective case. Easy to read. Perfect for darkroom use.

My last Patterson broke and went into a panic; I had a backlog of film to process. Simple to use and has never let me down.

The thermometer came without any instructions on how to use it to achieve its rated accuracy. Also, it didn't have any kind of a calibration document, so I have no way of knowing how accurate it really is. It reads both Fahrenheit and Centigrade, which is a plus, and it seems to be very sensitive, but without really knowing how to properly use it, I can't rate it much higher.Note that I did search the internet as well, looking for some clues. There was no manufacturer's web site that was nay help.

It's a thermometer, it works, and it's accurate. Best for measuring the temperature of liquids, not so good rectally no matter how tempting.

I bought this RazR V3 to replace tthe other Razr V3 I lost. It is pretty much the same except for reverse placement of controls unlike the US version. While it wasn't difficult to learn the keyboard is perfect, not hard to use Bonus is a microSDHC slot for expanded memory. It is probably of more recent production run in Singapore. I also like the charging cable that connects to a USB wall charger. It is long enough to charge with a car charger.

Fast respond thermometer, very accurate reading! But care must be taken to handle these glass thermometers they are fragile and could brake from just a 3 feet drop!

For film developing I have one for each chemical in the process. Good negs as a result.

Just what I was looking for