Hanna HI98121 pH/ORP/Temperature Combo Tester

$0.00
Mitchell Part Number
HAN-HI98121
Manufacturer
Availability
Out of Stock
Quick overview

Discontinued

  • The HI98121 is a lightweight ergonomically designed tester. 
  • This tester is designed to float making it ideal for taking readings virtually anywhere. 
  • With the HI98121 it is possible to monitor both pH and ORP at the same time. 
  • The HI98121 is commonly used to monitor pH and chlorine for many applications including swimming, food sanitization, plating wastewater treatment, and cooling tower water treatment.
  • By definition pH is the measurement of the voltage generated by an electrochemical cell at zero current. 
  • The potential generated is proportional to the thermodynamic activity of the ion being measured.
  • Similar to a pH measurement that quantifies the how acidic or alkaline solutions are, ORP (Oxidation Reduction Potential) measurements quantify the overall state of a solution as having the ability to oxidize or reduce a chemical species. 
  • Oxidizing and reducing reagents are used to participate in chemical reactions known as a redox reaction.
  • An ORP sensor must be chemically inert; it cannot be oxidized or reduced itself. 
  • It must also have the proper surface characteristics to promote rapid electron exchange, a property known as high exchange current density. 
  • Two noble metals have proven to work well for this purpose: pure platinum and pure gold are both used in the construction of ORP sensors.
More Information
Weight 2.000000
Product Includes supplied with protective cap, electrode removal tool, batteries and instructions.
Specifications
Range mV ±1000 mV
Range pH -2.00 to 16.00 pH
Range Temperature -5.0 to 60.0°C / 23.0 to 140.0°F
Resolution mV 1 mV
Resolution pH 0.01 pH
Resolution Temperature 0.1°C / 0.1°F
Accuracy mV ±2 mV
Accuracy pH ±0.05 pH
Accuracy Temperature ±0.5°C / ±1°F
Calibration mV factory calibrated
Calibration pH automatic, at 1 or 2 points with 2 sets of memorized buffers
(pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)
Temperature Compensation   Automatic for pH readings
Electrode   HI 73127 replaceable pH electrode (included); fixed ORP sensor
Battery Type / Life   4 x 1.5V with BEPS / approx. 250 hours of continuous use;
auto-off after 8 minutes of non-use
Environment   -5 to 50°C (23 to 122°F); RH max 100%
size 163 x 40 x 26 mm (6.4 x 1.6 x 1.0")
Power Supply 4 x 1.5V
Manufacturer Hanna Instruments
MPN HI98121
Manufacturer Warranty 1 Year
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