testo 608 H1 Monitor

Thought I'd write a review as there's been a hiatus in recent write ups for 3 years now. Comes with a calibration certificate, mine says it was calibrated and tested to within 0.1 C temperature and a very creditable 0.1% humidity accuracy. I've no reason to doubt this and trust the readings, it fact it really confirms my other devices are accurate to 0.3 C and 2% humidity, but nice to have a reference gauge to check this. Always on display, battery supplied, and easy to read, mine doesn't get any reflections really. Bought at a good price to of £85 in the flash Amazon sale, they upped it to £105 the next day, which seems the going price. Highly recommended.

The reason for the high price is accuracy - these things are way more accurate than your usual cheap and cheerful temperature monitors. For most people this level of accuracy is not important. But I love things to be super accurate. I have 3 of them - I put all three next to each other. Temperature read exactly the same after half an hour. I compared it to a calibrated high accuracy probe thermometer and it confirmed they were spot on. Humidity varied by 1% between them but that's still pretty good. Large display is easy to use but there is one issue - the screen is super glossy and slightly curved. It does a great job of showing light reflections from nearby windows - which can in some situations make it hard to read. That's its only downside really.

Very good and accurate !

Easy to use