Descriptions: 100% brand new and high quality. With distinct color PH scale for result comparisons. The test strip color changes must be matched with the pH scale color chart within about 15 seconds. Quick and easy to use. Provides reliable and accurate pH readings. Suitable for both labs and at home to measure and inspect water quality, saliva, soil, alkaline diet, aquariums etc. Specifications: Item Type: pH test strips Test range: pH 1-14 pH test strip length: 5m/16ft Application: suitable for alkaline or content testing of any liquid Package includes: 1 x pH Indicator Meter Notes: Transition: 1cm=10mm=0.39inch 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual measurement.