HI 98129 are waterproof testers that offer high accuracy pH,EC/TDS and temperature measurements in a single tester.These floating,waterproof testers have a large easy to read,dual-level LCD and automatic shut off.The EC/TDS conversion factor is user selectable as well as the temperature compensation coefficient.
Range:pH - 0.00 to 14.00pH
TDS - 0 to 2000ppm
Accuracy:pH - +/- 0.05 pH
TDS - +/- 2% F.S.
Callibration:pH - automatic,1 or 2 points with 2 sets of standard buffers (pH 4.01/7.01/10.01 or 4.01/6.86/9.18)
EC/TDS - automatic,1 point at 1413 us/cm or 1382 ppm.