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Home » Aquarium Supplies  » Controllers & Monitors  » Multifunction  »  Hanna Instruments Combination pH and ORP Tester
Hanna Instruments Combination pH and ORP Tester

Hanna Instruments Combination pH and ORP Tester

Average Rating 4 7
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Hanna Instruments Combination pH and ORP Tester Information

Product Manuals & Documentation

Manage the pH level of your aquarium or pond with the Hanna Instruments Combination Ph and Orp Tester from Pet Store. This dual controller is made available in the market to provide a convenience to aquarists in monitoring the water quality of their tanks. It allows you to monitor the pH and ORP's level in your tank instantly and accurately. The device has specially designed electrodes that can check both ORP and pH readings regularly.

This sleek elongated device is equipped with a digital controller that displays the level of pH and orp in a wide LED window. You can read and interpret the results with ease at an appropriate distance. It also has a high-quality impedance that minimizes reading error. The calibration knob can be adjusted and allows you to standardize the pH levels at both single point, or at dual points, according to your preference. The device has a switch that turns the system on and off. By turning the button on, the top of the set point measures the water pH and the bottom measures the ORP.

The Hanna Instruments Combination Ph and Orp Tester need a pH or ORP probe or both to perform your desired application. These are sold separately and are not included in the package.

The newest member to Hanna instruments Combo series of combination waterproof testers with advanced functions is HI 98121, designed for simultaneous pH and ORP measurements.

HI 98121 also reads temperature, which is continuously displayed on the dual level LCD.

An encapsulated external stainless steel sensor, positioned in close proximity to the pH electrode provides fast response. A fiber junction can be easily pulled out and replenished. And when finally spent, the pH electrode cartridge can be quickly replaced with the supplied electrode removal tool, reducing waste and cost.

HI 98121 works with common batteries and when turned on, displays the percentage of remaining battery life. The stability indicator ensures reliable readings.

Ergonomically designed for ease in handling, this meter will float if inadvertently dropped into water.

*Please note: pH calibration is required prior to use.  ORP comes pre-calibrated straight from Hanna Instruments.

Manufacturer Info

Hanna Instruments USA Aquarium Supplies
Hanna Instruments is a leading manufacturer of analytical aquarium instrumentation. They were founded in 1978 and are headquartered in Woonsocket, Rhode Island. When Hanna introduced pH Electronic Paper in 1986 it literally revolutionized the world of testing by allowing millions of people in various industries to test for pH in a simple, accurate and affordable way. Hanna employees are constantly challenging themselves to improve on existing technology and to invent new testing techniques with the common goal to simplify analytical testing. This applies not only to instrumentation, but also to sensors development, reagents and chemicals. Hanna also believes in controlling the quality of their products from inception to delivery so they manufacture everything themselves, from meters and electrodes to chemical reagents and buffer solutions.

Hanna Instruments Combination pH and ORP Tester Reviews

Average Rating
(7 reviews)
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Hanna PH & ORP Tester

Reviewers Rating Excellent!

Posted: 3/23/2012 from JERSEY CITY, NJ UNITED STATES
5.0 5
Experience Level: Intermediate

Comments: I have used this product in 2009 and I was happy with it. The instrument broke down on me after a long while because of no maintenance, I guess. (I really didn't know if there was one at all). So I upgraded to a PINPOINT ORP Monitor which is very cumbersome to use. Many times I knocked down the glasses that I use to do a demo with and spilled liquid on the table because I have to hold it with both hands. Now I am back to using the Hanna instrument.

4 of 4 People found this review helpful, did you? Yes No

Hanna ORP/pH Meter

Reviewers Rating Unsatisfactory

Posted: 12/20/2010 from Dunnellon, FL UNITED STATES
1.0 5
Experience Level: Beginner

Comments: I can't figure out how to calibrate the instrument, so I need to wait for an associate who understands it to return from the holidays. When she somes back and can advvise me, I will let you know if the meter works.

1 of 7 People found this review helpful, did you? Yes No

Great Product!

Reviewers Rating Excellent!

Posted: 9/12/2010 from Curitiba PR Brazil
5.0 5
Experience Level: Intermediate

Comments: Very Ease to use, and very acurate! Calibratin HP is very Easy! I Will only recommend to Hanna to build a more complete Manual, because there is some cares needed to the probe like, clean solution, and storage solution, that I did't found "how to use". And how to store the probe...wet or dry?

2 of 2 People found this review helpful, did you? Yes No


Reviewers Rating Average

Posted: 3/1/2010 from LINDEN, CA UNITED STATES
3.0 5
Experience Level: Beginner

Comments: I intended to use it during product presentations going from one glass of water to another testing the ORP. But it takes too long. I had seen another unit work much faster. I am not sure at this time if I will continue to use this unit or find the name of the other and go that way.

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Reviewers Rating Great

Posted: 3/9/2009 from SAN JOSE, CA UNITED STATES
4.0 5
Experience Level: Intermediate

Comments: THere is a question in my mind, if this meter is also design for drinking water testing. Please response. Overall I like it very much and very helpful in my business. I am into drinking water business.

3 of 4 People found this review helpful, did you? Yes No

Big Bang for the Bucks!

Reviewers Rating Excellent!

Posted: 5/6/2008 from REDDING, CA UNITED STATES
5.0 5
Experience Level: Expert

Comments: I bought this device to definitively prove the difference between regular drinking water and ionized drinking water, as I distribute Tyent water ionizers. People are fascinated by the negative ORP value that the Hanna tester demonstrates. The PH meter is equally useful, as ionized water has a much higher PH than "normal" drinking water. I have already recommended this instrument to several friends. It lists at about $150.00, and I have seen it for as much as $175.00, so a good deal is had here. Namaste - Baran

26 of 27 People found this review helpful, did you? Yes No

Hanna Combo ph+ORP

Reviewers Rating Excellent!

Posted: 2/28/2008 from ALBUQUERQUE, NM UNITED STATES
5.0 5
Experience Level: Beginner

Comments: very usefulI ordered two and then used both to find the info/reading was different.Called customer service and was refered to Hanna who explained about calibrating the devicesback to Marine cust service/tech support and ordered calibration solutionsSo far I am impressed with the ease of use but maybe an asterick would be helpful to know to order calibration solution when you order the meter - I am new at this and didn't know.Great customer service and tech support at Marine Depot!

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