7 in 1 Digital Water Testing Kit, 50 Strips Hot Tub Test Kit, Digital Pool Water
Up to 100 test records can be saved for quick comparison. Professional & Handy: Forget fumbling with color matching! High Accuracy: Precise test ranges: pH: 6.2-8.4; TH: 100-500 ppm; TCL: 0-10 ppm; FCL: 0-10 ppm; Alk: 40-180 ppm; CyA: 30-150 ppm; Br: 0-20 ppm.