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 Water analysis >
REDOX potential tester
  > Printable version

The One and Only REDOX Potential Tester

Until now, the only alternative was a costly ORP electrode used with a special pH meter with mV readings, now there is ORP. Oxidation is a process in which a molecule or ion loses electrons. This occurs most readily in water treatment as well as pool and spa maintenance where an oxidizer, such as chlorine, is added to the water to destroy contaminants. The more positive the ORP value, the greater the sanitizing power of your water. The ORP tester can provide a valuable indication of water quality. Hanna's ORP is a unique hand-held tester developed for quick and affordable tests.

 

 

HI 98120 ORP / Temp Pocket Tester and
HI 98121 Combo Waterproof pH / ORP & Temperature Meter

  • Waterproof. - Completely sealed against humidity and designed to float.
  • Set/Hold Button. - Allows the user to freeze the reading for easy and accurate recording.
  • Affordable & Easy-to-use. - Measures on the spot accurately and inexpensively.

 

Oxidation is a process in which a molecule or ion loses electrons. Reduction is a process by which electrons are gained. A measurement of the potential for these processes to occur is called ORP (Oxidation Reduction Potential). Hanna's ORP meter is a unique hand-held tester developed to determine this value. The HI 98120 is a waterproof ORP and temperature meter. ORP can be measured in a range of +/-1000mV and temperature can be displayed in °C or °F. The meter is factory calibrated and measurements are highly accurate with a unique stability indicator on the LCD. HI 98120 provides a battery level indication at startup and the Battery Error Prevention System (BEPS) avoids erroneous readings caused by low voltage level. The HI 98121 includes all the same features but adds a pH range as well.

HI 98120 is supplied complete with HI 73120 ORP electrode, HI 73128 electrode removal tool, 4 1.5V batteries and an instruction manual.

HI 98121 is supplied complete with HI 73127 ORP electrode, HI 73128 electrode removal tool, 4 1.5V batteries and an instruction manual.


Specifications: HI 98120 ORP HI 98121 Combo
Range
ORP:
± 1000 mV ± 1000 mV
pH:
- -2.00 to 16.00 pH
Temp:
-5.0 to 60.0°C/23.0 to 140.0°F -5.0 to 60.0°C/23.0 to 140.0°F
Resolution
ORP:
1 mV
1 mV
pH:
- 0.01 pH
Temp:
0.1°C / 0.1°F 0.1°C / 0.1°F
Accuracy (@ 20°C/68°F)
ORP:
±2 mV ±2 mV
pH:
- ±0.05 pH
Temp:
±0.5°C / ±1°F ±0.5°C / ±1°F
Typical EMC Deviation
ORP:
±2 mV

±2 mV

pH:
- ±0.02 pH
Temp:
±0.3°C / ±0.6°F ±0.3°C / ±0.6°F
Calibration Factory Calibrated
Electrode HI 73120 ORP electrode (included) HI 73127 pH electrode (included)
Battery Type / Life 4 x 1.5V / 300 hours approx. continuous use; Auto off after 8 minutes
Environment -5 to 50°C (23 to 122°F); RH 100%
Dimensions 163 x 40 x 26 mm (6.4 x 1.6 x 1.0”)
Weight 85 g (3 oz.)



ITEM
DESCRIPTION
CAD PRICE
EASY ORDER
HI-98201
REDOX Potential Tester (ORP)
144.40 $
HI-98120
REDOX Potential Tester and temp.
242.25 $
HI-7020M
ORP Solution ORP 200/275 mV (230 ml)
26.60 $
Last Update: November 9 2004
Prices are in canadian dollars and can change without notice.

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788, Blv. Methot, St-Nicolas (QC) CANADA - G7A 3W4 - Toll Free : (888) 278-4776 - Fax : (418) 831-2882