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)
Calibration EC/TDS automatic, 1 point
TDS Conversion Factor adjustable from 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 4 x 1.5V / approx. 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.)
Hanna 690 HI98129 Combination PH TEMP TDS Meter
The HI 98129 Combo waterproof tester offer high accuracy pH, EC/TDS and temperature measurements in a single tester! No more switching between meters for your routine measurements. The waterproof Combo (it even floats) has a large easy-to-read, dual-level LCD and automatic shut-off. pH and EC/TDS readings are automatically compensated for the effects of temperature (ATC). This technologically advanced tester has a replaceable pH electrode cartridge with an extendable cloth junction as well as an EC/TDS graphite electrode that resists contamination by salts and other substances. This gives these meters a greatly extended life. Your tester no longer needs to be thrown away when the pH sensor is exhausted.
The EC/TDS conversion factor is user selectable as is the temperature compensation coefficient (ß). Fast, efficient, accurate and portable, the Combo pH, EC/TDS and temperature tester brings you all the features you've asked for and more!
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