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Hanna (HI98121) Combination pH-ORP Meter Tester

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Hanna (HI98121) Combination pH-ORP Meter Tester

The Hanna HI98121 is a waterproof combination pH and ORP meter with replaceable electrode and automatic temperature compensation, offering professional-grade measurement in a pocket-sized design. It measures pH from -2.00 to 16.00 with ±0.05 accuracy and ORP from ±1000mV, making it ideal for water treatment professionals, aquarium hobbyists, and laboratory technicians.
SPECIFICATIONS

Dual-Parameter Testing Performance

pH Range
-2.00 to 16.00 pH
±0.05 pH accuracy, 0.01 resolution
ORP Range
±1000 mV
±2 mV accuracy, 1 mV resolution
Temperature Range
-5.0 to 60.0°C
23.0 to 140.0°F, ±0.1° accuracy
Calibration
1 or 2-Point pH
Auto-buffer recognition, 5 memorized values
Construction
Waterproof
Replaceable electrode, renewable junction
Dimensions
163 × 40 × 26 mm
6.4" × 1.6" × 1.0", 100g (3.5 oz)
TECHNICAL DETAILS

Hanna HI98121 Full Specifications

Model Number Hanna HI98121
Display Type Large LCD screen with clear readability
Temperature Compensation Automatic (ATC) - eliminates manual calculations
Junction Type Non-clogging, replenishable fiber junction
Power Source Four 1.5V batteries (included)
ORP Calibration Factory set, automatic
Included Accessories Protective cap, calibration screwdriver, batteries, instructions
COMPATIBILITY & APPLICATIONS

Professional & Hobbyist Water Testing

The HI98121 serves water treatment professionals verifying reverse osmosis system performance, aquarium enthusiasts monitoring pH and oxidation potential, laboratory technicians conducting field measurements, and pool service providers checking sanitizer effectiveness. The replaceable electrode design extends the tester's operational life far beyond sealed units, while the fiber junction resists clogging in samples with high particulate content. Hanna Instruments' vertically integrated manufacturing ensures consistent quality control across all components. The dual-parameter functionality eliminates the need to carry separate pH and ORP meters, and the waterproof housing protects electronics in wet environments typical of water testing applications.

💧 The replaceable electrode and renewable junction on the HI98121 mean this meter can be serviced and maintained for years, unlike disposable testers that must be replaced entirely when the electrode degrades.
$157.15

Original: $449.00

-65%
Hanna (HI98121) Combination pH-ORP Meter Tester

$449.00

$157.15

Product Information

Shipping & Returns

Description

The Hanna HI98121 is a waterproof combination pH and ORP meter with replaceable electrode and automatic temperature compensation, offering professional-grade measurement in a pocket-sized design. It measures pH from -2.00 to 16.00 with ±0.05 accuracy and ORP from ±1000mV, making it ideal for water treatment professionals, aquarium hobbyists, and laboratory technicians.
SPECIFICATIONS

Dual-Parameter Testing Performance

pH Range
-2.00 to 16.00 pH
±0.05 pH accuracy, 0.01 resolution
ORP Range
±1000 mV
±2 mV accuracy, 1 mV resolution
Temperature Range
-5.0 to 60.0°C
23.0 to 140.0°F, ±0.1° accuracy
Calibration
1 or 2-Point pH
Auto-buffer recognition, 5 memorized values
Construction
Waterproof
Replaceable electrode, renewable junction
Dimensions
163 × 40 × 26 mm
6.4" × 1.6" × 1.0", 100g (3.5 oz)
TECHNICAL DETAILS

Hanna HI98121 Full Specifications

Model Number Hanna HI98121
Display Type Large LCD screen with clear readability
Temperature Compensation Automatic (ATC) - eliminates manual calculations
Junction Type Non-clogging, replenishable fiber junction
Power Source Four 1.5V batteries (included)
ORP Calibration Factory set, automatic
Included Accessories Protective cap, calibration screwdriver, batteries, instructions
COMPATIBILITY & APPLICATIONS

Professional & Hobbyist Water Testing

The HI98121 serves water treatment professionals verifying reverse osmosis system performance, aquarium enthusiasts monitoring pH and oxidation potential, laboratory technicians conducting field measurements, and pool service providers checking sanitizer effectiveness. The replaceable electrode design extends the tester's operational life far beyond sealed units, while the fiber junction resists clogging in samples with high particulate content. Hanna Instruments' vertically integrated manufacturing ensures consistent quality control across all components. The dual-parameter functionality eliminates the need to carry separate pH and ORP meters, and the waterproof housing protects electronics in wet environments typical of water testing applications.

💧 The replaceable electrode and renewable junction on the HI98121 mean this meter can be serviced and maintained for years, unlike disposable testers that must be replaced entirely when the electrode degrades.

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Hanna (HI98121) Combination pH-ORP Meter Tester | Isopure Water