CALL: A.WIHARTA 081294124885 085778084789 087784022201 Karya Mandiri Instrument indonesia adalah supplier peralatan laboratorium baik eletronik maupun mekanik, serta berbagai macam instrument measurement, dengan didukung dari berbagai macam merk dari negara negara Eropa, US, dan beberapa negara di Asia seperti Korea, Japan dan Taiwan. Instrument yang kami sediakan seperti : Anemometer, Analitical Balance, Spectrophotometer, pHmeter, Laser survey, Micropipette, Peristaltic Pump, Flame photometer, Water bath heating cooling, Colorimeter, Water Strirer, Viscometer. Freezers, Refractometer, Polarimeter, Sound Level meter, Tachometer. Dll Kami juga menerima jasa service dan kalibrasi untuk peralatan laboratorium sesuai kemampuan kami.   Waterproof and designed to float Cloth, renewable junction Close proximity temperature probe Automatic Temperature Compensation Automatic 1 or 2 point pH calibration Tactile grip casings HOLD function BEPS ( Battery Error Prevention System) Battery % displayed at startup Automatic shut-off Efficient two button operation Temperature in ° C or ° F; Easily switch between Celsius and Fahrenheit readouts. HI 98129 is a waterproof tester that offers high accuracy pH, EC/ TDS and temperature measurements in a single tester! No more switching between meters for your routine measurements. This floating, waterproof combination tester has an easy to read, LCD and an automatic shut-off. pH and EC/ TDS readings are automatically temperature compensated. This tester features a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/ TDS graphite electrode. The extendable cloth junction provides an extended electrode life and the replaceable pH cartridge means that this tester does not need to be thrown away when the pH sensor is exhausted. The EC/ TDS conversion factor is user selectable as well as the temperature compensation coefficient ( ² ) . Fast, efficient, accurate and portable, the Combo pH, EC/ TDS and temperature tester combines all the features users have requested and more! Range pH 0.00 to 14.00 pH EC 0 to 3999 µ S/ cm TDS 0 to 2000 ppm Temperature 0.0 to 60.0° C / 32 to 140.0° F Resolution pH 0.01 pH EC 1 µ S/ cm TDS 1 ppm Temperature 0.1° C / 0.1° F Accuracy pH ± 0.05 pH EC/ TDS ± 2% F.S. Temperature ± 0.5° C / ± 1° F Temperature Compensation pH: automatic; EC/ TDS: automatic with ß adjustable from 0.0 to 2.4% / ° C Calibration pH automatic, 1 or 2 points with 2 sets of memorized buffers ( pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18) EC/ TDS automatic, one point at 1413 µ S/ cm or1382 mg/ L ( ppm) TDS Conversion Factor 0.45 to 1.00 pH Electrode HI 73127 ( replaceable; included) Environment 0 to 50° C ( 32 to 122° F) ; RH max 100% Battery Type / Life 1.5V ( 4) / approximately 100 hours of continuous use, auto-off after 8 minutes of non-use Dimensions 163 x 40 x 26 mm ( 6.4 x 1.6 x 1.0" ) Weight 100 g ( 3.5 oz.)