I recently bought this pH meter and have some questions. Its the one thats electronic by Rapitest.

1. Does it need to be calibrated? I feel like that's a stupid question but I wanna makes sure I'm doing things properly.

2. If it does, I only have the ph 7.0 calibration fluid, is this sufficient?

3. How do I do this exactly? (I've researched a little bit but I'm still confused)

4. ANOTHER really dumb question I have is does it have an on off button/function?

5. When it is on (given its possible to be) how long do you have to leave it in the soil and how deep into it?

lol sorry for my nooby questions I just really don't wanna mess this plant up that I have goin (I've heard its very sensitive to soil ph: DP blueberry)
AKickedBowl Reviewed by AKickedBowl on . PH meter questions I recently bought this pH meter and have some questions. Its the one thats electronic by Rapitest. 1. Does it need to be calibrated? I feel like that's a stupid question but I wanna makes sure I'm doing things properly. 2. If it does, I only have the ph 7.0 calibration fluid, is this sufficient? 3. How do I do this exactly? (I've researched a little bit but I'm still confused) 4. ANOTHER really dumb question I have is does it have an on off button/function? Rating: 5