Any pH meter needs to be calibrated periodically to measure pH accurately. These unique, easy-to-use packets contains 20ml of 7.0 pH calibration solution to calibrate your pH meter any place, any time. Each packet is good for one calibration (solution should not be reused once opened.) 7.0 pH solution is most commonly used for single-point pH meter calibration. You get 5 packets of calibration solution.
MORE INFORMATION BOX
My Science Perks is FREE! Just place your order while logged in to your Home Science Tools account and you'll automatically earn up to 6% back when your order ships!Learn More