WaterWorks™ Total Hardness Water Test Strips 0-1000ppm Options:Total Hardness Test Strips - Bottle of 50 unlike many temperature indicator stickers

unlike many temperature indicator stickers

The test run number is marked off after each use

Colour change: Purple to Green

The test pack is then placed in the kit holding frame (REF BD 105) and clamped

with its three individual indicator dots changing color for brief

WaterWorks™ Total Hardness Water Test Strips 0-1000ppm Options:Total Hardness Test Strips - Bottle of 50 unlike many temperature indicator stickersOverview A versatile water test strip for measuring total hardness either as ppm or grains per gallon. Accurate, reliable and easy to use with rapid results. Detection Range: 0, 40, 80, 120, 180, 250, 425, 1000 ppm (mg L) Or 0, 2, 5, 7, 11, 15, 25, 58 gpg Total Test Time: 3 Seconds Packaging:: Bottle of 50 Details Total Hardness test strips are perfect for service work, classroom demonstrations, or to give to customers instead of an expensive service