HM Digital PH-80 Digital pH/Temperature Meter

HM make very good kit and this budget PH pen is one of the best I have used, very accurate and very simple. The only complaint is that it could do with a larger LCD readout, other than that perfect. Very highly recommended.

I have been through a lot of different ph pens, I did buy this same pen 18 months ago and it's worked flawlessly until I misplaced it and then it was never found. Within those 18 months it only needed re calibration once. So I have took this opportunity to let you all know it is worth every penny.

Definitely a step up from the cheap £12 ones, but a step down from the apera ph20 which has served me for the last 2 years. Unfortunately I was in need of this meter quickly and the apera comes from the US and would have taken 2 weeks to arrive. Out of the box it required calibration as it was reading 0.4 out. So if you are using for hydroponics and need high accuracy I'd make sure to calibrate before first use. The build quality is fair, again not as nice in the hand as the apera but it doesn't feel too cheap. Once calibrated it works well and reads true. Can't comment on longevity yet as I've only had it a day! The screen is small and difficult to read and isn't backlit, however it does clearly show temperature and PH so I can't complain too much So to summarise, go for it if you need it tomorrow and you have prime, but if you can wait, go for the apera ph20 it's only £10 more and has a proven track record.

It just works

I've used this product for a month or so now, luckily I also bought a cheap one from another site to test against. The cheap one has not needed calibrating once yet, I test both weekly as I use for fish tank. The PH 80 is always out within a few days of calibrating by as much as 0.7. Absolute waste of money, wish I could return but missed the window as I kept giving it a chance. Not happy with product and certainly would not purchase again.

I have used the meter once, and it provided what I believe to be an accurate reading. It could be improved if the display were a little easier to read, with a back light. Overall though I think it was a good buy.

Malawi Cichlids tank. Very good and accurate product.

I use for measuring the fertiliser pH for my orchids - not sure how accurate it is as I have nothing to compare - also brought some buffer and storage solution to calibrate the unit to be on the safe side.