4x20ml, Storage + pH 4 + 7 + 10 Buffer Calibration/Solution/Fluid/Probe/Tester water quality pen Optimized formulation: Concentrated potassium chloride

Optimized formulation: Concentrated potassium chloride solution designed specifically for polarographic DO sensors

The ability to transfer information allows for hot-swapping of probes without having to recalibrate

Industrial 1/2" NPT threaded sensor for permanent installation

2% volume and ±0

ZeroWater's TDS meters are shipped with every 5-stage water filter pitcher so you can test the quality of your water and check the TDS levels in your area

4x20ml, Storage + pH 4 + 7 + 10 Buffer Calibration/Solution/Fluid/Probe/Tester water quality pen Optimized formulation: Concentrated potassium chlorideDesign Features Sachet packaging means that you get fresh solution every time Each sachet sealed against light and air Ideal for infrequent or field use Simply open the sachet, insert the tester or electrode and gently stir pH buffers certified to 0. 01 pH accuracy Each sachet contains 20 mL of solution Included 1 x pH 4. 01 calibration buffer solution sachets (20 mL) 1 x pH 7. 01 calibration buffer solution sachets (20 mL) 1 x pH 10. 01 calibration