Bertie
Member
- Joined
- 18 Apr 2013
- Messages
- 489
Hi,
I received my PH Pen today and not sure how reliable it is going to be? It was very cheap, so I do not expect spot on readings, but I am hoping that what readings they give me are consistent.
It is this one; Digital Ph Tester-Pen-Meter,Aquairums,Hydroponics,UK Seller Free 1st Class Post | eBay
I did calibrate as the instructions sort of told me, and my first reading was 7.4 which is .4 lower than my API test kit. I took some later readings and initially, it was showing 5.3 but the longer I left and after about 45 secs it had crept up to 6.3?
Do they normally take this amount of time to settle on a reading or is it going to be completely unreliable?
I received my PH Pen today and not sure how reliable it is going to be? It was very cheap, so I do not expect spot on readings, but I am hoping that what readings they give me are consistent.
It is this one; Digital Ph Tester-Pen-Meter,Aquairums,Hydroponics,UK Seller Free 1st Class Post | eBay
I did calibrate as the instructions sort of told me, and my first reading was 7.4 which is .4 lower than my API test kit. I took some later readings and initially, it was showing 5.3 but the longer I left and after about 45 secs it had crept up to 6.3?
Do they normally take this amount of time to settle on a reading or is it going to be completely unreliable?