Size: 20ml
PH Level: 4.01 / 7.01 / 10.01
Expiration: 2014 SEP / 2014 SEP / 2013 APRIL
Price: $2 per bag.
PH monitor (or meter) users are recommended to calibrate it regularly (ie annually)
For those who are interested, I would suggest you buy all 3 PH levels in order to make sure the monitor (or meter) can correctly measure different PH level.
PM me if you are interested.
Thanks.
PH Level: 4.01 / 7.01 / 10.01
Expiration: 2014 SEP / 2014 SEP / 2013 APRIL
Price: $2 per bag.
PH monitor (or meter) users are recommended to calibrate it regularly (ie annually)
For those who are interested, I would suggest you buy all 3 PH levels in order to make sure the monitor (or meter) can correctly measure different PH level.
PM me if you are interested.
Thanks.
