Hanna HI981037 Skin & Scalp pH Tester | 0.00–12.00 pH Range | ±0.05 pH Accuracy | Digital pH Meter for Skin & Scalp Testing

Brand: Hanna Instruments
Model: HI981037
Product Type: Application-Specific Digital pH Tester
Application: Skin & Scalp Surface pH Measurement
pH Range: 0.00 to 12.00 pH
Resolution: 0.01 pH
Accuracy: ±0.05 pH @ 25°C / 77°F
Calibration: Automatic 1- or 2-point
Electrode: Flat-tip glass electrode with open junction
Temperature Compensation: Automatic, 0–50°C
Battery: CR2032 3V lithium battery
Display: Large LCD
Operation: Single-button operation

Product Description

The Hanna Instruments HI981037 Skin & Scalp pH Tester is a compact digital pH meter specifically designed for measuring the pH of skin and scalp surfaces. Its specialized flat-tip electrode provides direct surface contact, while the open-junction reference design helps provide stable measurements on surfaces containing skin residues, oils and proteins.

The tester combines a 0.01 pH resolution, ±0.05 pH accuracy at 25°C, automatic calibration and automatic temperature compensation in a compact, portable instrument suitable for cosmetic, personal-care, research and laboratory applications.

Key Features

• Specifically designed for skin and scalp pH testing
• 0.00–12.00 pH measuring range
• 0.01 pH resolution
• ±0.05 pH accuracy @ 25°C
• Flat glass tip for direct surface measurement
• Open-junction reference design
• Specialized low-temperature pH glass for faster stabilization
• Automatic 1- or 2-point calibration
• Automatic temperature compensation
• Large, easy-to-read LCD
• Stability indicator
• Low-battery indicator
• Automatic probe diagnostic during calibration
• Selectable automatic shut-off
• Compact and portable design
• Waterproof casing
• Single-button operation

Technical Specifications

Hanna's current regional product pages differ slightly on dimensions, weight and battery-life figures, so the manufacturer's supplied documentation for the delivered unit should be treated as authoritative.

Specialized Flat-Tip Electrode

The HI981037 uses a flat glass pH tip, allowing the sensing surface to contact skin or scalp directly rather than requiring immersion into a conventional sample container.

The electrode also incorporates an open-junction reference with a gelled electrolyte. Hanna states that this design helps reduce clogging from residues and proteins and permits measurements using minimal sample moisture.

Automatic Calibration

The tester supports automatic one- or two-point calibration. The calibration system automatically recognizes the applicable buffer solutions.

Recommended calibration buffers include:

• pH 4.01
• pH 7.01

The supplied sachets allow fresh buffer to be used during calibration.

Automatic Temperature Compensation

The HI981037 automatically compensates for temperature variations over 0–50°C during measurement/calibration. This helps maintain measurement consistency when the sample or testing environment changes in temperature.

Stability Indicator

An on-screen stability indicator helps identify when the pH reading has stabilized. This is particularly useful for surface measurements where the reading may take some time to equilibrate.

Probe Diagnostic

During calibration, the meter can display an “Err” indication when the probe requires cleaning or when calibration conditions are not satisfactory. This provides a useful maintenance check before taking measurements.

Applications

The HI981037 can be used for pH measurement and research involving:

• Skin surface pH
• Scalp surface pH
• Cosmetic product development
• Personal-care product research
• Skin-care formulation studies
• Shampoo and scalp-care research
• Cosmetic laboratories
• Dermatological research
• Pharmaceutical/cosmetic R&D
• Academic and laboratory research

Hanna specifically positions the instrument for applications in the medical and cosmetic industries.

Important: The instrument is a pH measurement device and should not be represented as a diagnostic device for determining or treating skin or scalp disease.

What's Included

The standard HI981037 package includes:

• 1 × Hanna HI981037 Skin & Scalp pH Tester
• 2 × pH 4.01 buffer solution sachets
• 2 × pH 7.01 buffer solution sachets
• 1 × skin-residue cleaning/disinfection solution sachet
• 1 × electrode cleaning solution for skin grease and sebum
• 13 mL electrode storage solution
• 1 × CR2032 3V lithium battery
• Quality certificate
• Instruction manual

How to Use

1. Remove the protective cap from the electrode.
2. If necessary, condition the electrode in the recommended storage solution.
3. Calibrate the tester using the appropriate pH buffer solution.
4. Clean and prepare the skin or scalp surface according to the testing procedure.
5. Place the flat electrode tip against the surface being measured.
6. Allow the reading to stabilize.
7. Read the pH value on the LCD.
8. Clean the electrode after use and store it correctly.

Always follow Hanna Instruments' operating and electrode-maintenance instructions for reliable measurements.

Electrode Care

Proper electrode maintenance is important for accurate and repeatable pH measurements. The supplied cleaning solutions are intended to address skin residues, grease and sebum, while the storage solution helps keep the pH glass hydrated.

Why Choose HI981037?

Purpose-Built Electrode: Designed specifically for surface pH measurement of skin and scalp.

High Resolution: Displays measurements to 0.01 pH.

Good Measurement Accuracy: Rated at ±0.05 pH at 25°C.

Simple Operation: Single-button operation and a large LCD make routine testing straightforward.

Portable: Lightweight, compact design makes it suitable for laboratory and field use.

Complete Starter Package: Includes calibration buffers, cleaning solutions, storage solution and battery.