Bluelab pH Probe Care Kit - Meter Cleaning Maintenance Kit
1 x Bluelab pH Probe Care Kit. 20ml single-use Bluelab Solution Sachets, 2 each of: pH 7.0 & pH 4.0 KCl. Bluelab pH Probe Cleaner. If the probe face is dirty or contaminated, the readings may be inaccurate.