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Faisal1976us
05/08/2008, 03:21 PM
Hi ....

Today i bring my first pinpoint ph monitor , and i have two questions :

1- Is it important to check calibration every month ?

2- can i keep calibration solution for next calibration ?

i hope some one will help me :)

liquidlunch
05/08/2008, 03:29 PM
When used on a 9v battery, you will see "low batt" every 8-10 weeks. I usually replace the battery and recalibrate at that time. The 7 and 10 cal packets are usually $.99/piece and I buy 5 of each everytime I place an order somewhere.