Hanna Instruments HI98107 pHep® Waterproof Pocket pH Tester (0.1 pH Resolution)

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Hanna InstrumentsSKU: bio-70091

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Hanna Instruments HI98107 pHep® Waterproof Pocket pH Tester (0.1 pH Resolution)

Simple Two-Button pH Meter • ATC Temperature Compensation • Rugged for Lab & Field • Ideal for Fresh Water

The Hanna Instruments HI98107 pHep® is a compact, dependable waterproof pocket pH tester designed for fast pH checks in fresh water applications. Built to keep testing simple, it combines an ergonomic handheld design with two-button operation, automatic temperature compensation (ATC), and automatic calibration—making it a great choice for routine pH monitoring in the lab, field, aquariums, ponds, and general water quality work.

With a clear multi-level LCD that displays pH, temperature, calibration tags, and stability status, the HI98107 helps you get consistent results without complicated menus or settings.

Why Choose the HI98107 pHep® Pocket Tester?

✔ Reliable pH Measurement for Everyday Use

  • pH Range: 0.0 to 14.0 pH
  • Resolution: 0.1 pH
  • Accuracy: ±0.1 pH

Perfect for quick checks where you need practical accuracy and easy operation.

✔ Automatic Temperature Compensation (ATC)

An exposed temperature sensor provides fast response and automatically compensates pH readings for temperature changes (0 to 50°C / 32 to 122°F). Temperature can be displayed in °C or °F.

✔ Extractable Cloth Junction Extends Electrode Life

The built-in cloth junction can be refreshed by extracting a small amount of cloth, helping clear minor clogging and maintain stable readings—an easy way to prolong electrode performance.

✔ Simple Two-Button Operation

  • One button for On/Off

  • One button for Calibration

Ideal for users who want straightforward, no-fuss testing.

✔ Multi-Level LCD with Helpful Indicators

The large display shows:

  • pH reading
  • Temperature
  • Calibration buffer tags
  • Battery level
  • Stability/instability indicator (confirms when readings stabilize)

✔ BEPS + Smart Auto-Off

  • BEPS (Battery Error Prevention System) helps prevent inaccurate readings caused by low battery
  • Auto shut-off options: 8 minutes, 60 minutes, or disabled
  • Up to 800 hours of use on one CR2032 battery

Specifications (Highlights)

pH Calibration Automatic, one or two points (standard buffers pH 4.01, 7.01, 10.01)
Temperature Range 0 to 50°C (32 to 122°F)
Temperature Resolution 0.1°C / 0.1°F
Temperature Accuracy ±0.5°C / ±1.0°F
Battery CR2032 3V (1) | ~800 hours
Dimensions 160 x 40 x 17 mm
Weight 65 g (without battery)
Environment 0–50°C | RH max 100%

 

What’s Included

The HI98107 is supplied with:

  • Protective cap
  • pH 4.01 buffer sachet
  • pH 7.01 buffer sachets (2)
  • Electrode cleaning sachet
  • CR2032 battery
  • Instrument quality certificate
  • Instruction manual

Best For

  • Fresh water pH testing
  • Aquariums, ponds, and water features
  • Educational labs and field sampling
  • Routine water quality checks with simple operation

Order Confirmation

As soon as your order is placed, an order confirmation will be sent to the email address you used to place the order. This means we have received your order and payment. Payment is captured as soon as the order is placed. In rare cases, if the product is on backorder or unavailable, we will contact you and ask if you would like to wait for the product to become available, switch your product, or have your payment refunded. If the item is available for shipment we will submit the order for processing and arrange shipment. Please see current estimated lead times on the product page for each product.

Shipping

Most products ship within 1 to 3 business days. Some items might take longer as they are delivered from our warehouse in Vancouver. As soon as we receive your tracking number, we will send it over to you.

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Returns

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Our small team overlooks every customer and their orders to ensure they are satisfied with their products. We answer the phone and website chat, and if we don’t, we get back to you within 6 hours or less! We even throw in some freebies at random.

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Just in case your purchase was not up to your standards, we offer return shipping if you are not 100% satisfied for any reason

10. Route Package Protection

Adding Route Package Protection to your order at checkout means that your order is protected against being lost, damaged, or stolen. In the unfortunate instance that you experience one of these inconveniences, you can report an issue with Route and they will work with you to make sure you get the resolution you prefer.

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