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UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Small but perfectley formed on July 05, 2017, 06:40:11 am

Title: How long does calibration. Fluid last
Post by: Small but perfectley formed on July 05, 2017, 06:40:11 am

Just checked my TDS meter with calibration fluid and it's not accurate does the fluid go off ?.

Title: Re: How long does calibration. Fluid last
Post by: Perfect Windows on July 05, 2017, 07:08:36 am

Three months too late for April Fool.

Vin