Click to expand Tap to zoom PH TEST STRIPS Save Liquid error (snippets/product-badge line 32): Computation results in 'NaN' (Not a Number)% $0.00 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. PH indicator strip. Range from 0 to 14. 100 strips per pkt. Ideal to use in food safety processes, labs etc.