Hanna Instruments HI98129 pH, TDS, EC, and Temp Combo Meter

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Hanna Instruments

Part Number: HI98129

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Features:

High accuracy pH, EC/TDS and temperature measurements
Waterproof combo has a large easy-to-read, dual-level LCD and automatically shuts-off
EC/TDS and pH readings automatically compensate for the effects of temperature (ATC)
Tester has a greatly extended life:
Replaceable pH electrode cartridge with an extendable cloth junction.
EC/TDS graphite electrode resists contamination by salts/other substances.
User can select the EC/TDS conversion factor and the temperature compensation coefficient (ß)

Specifications:

Range:
pH: 0.00 to 14.00 pH
EC: 0 to 3999 µS/cm
TDS: 0 to 2000 ppm
Temp: 0.0 to 60.0°C / 32 to 140.0°F
Resolution:
pH: 0.01 pH
EC: 1 µS/cm
TDS: 1 ppm
Temp: 0.1°C / 0.1°F
Accuracy:
pH: ±0.05 pH
EC/TDS: ±2% F.S.
Temp: ±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, 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 hrs of continuous use; auto-off after 8 min. of non-use
Dimensions: 163 x 40 x 26 mm (6.4 x 1.6 x 1.0")
Weight: 100 g (3.5 oz.)

Use the following formula to calculate the percentage of solids (TDS) that your membrane is removing:

California residents Prop 65 Warning

WARNING!

This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov