This product appears in the ERE Water Catalogue 2026
Rolls-Royce
Bureau Veritas
Englobe
National DefenceOverview
These testers use the exclusive replaceable pull-out cartridge pH electrode. Its exposed temperature sensor provides fast response time and its proximity to the pH electrode guarantees much more accurate temperature compensated readings.
Specifications
• -2.0 to 16.0 pH range
• ± 0.1 pH accuracy for pHep®4 and ± 0.05 pH accuracy for pHep®5
• Calibration: Automatic, at 1 or 2 points with 2 sets of memorized buffer values
• Temp. Compensation: Automatic
• 6.4" x 1.6" x 1.0", 3.5 oz
Compare models
Your selection is highlighted. Select a row to switch.| Part Number | Model |
| HA-98127 | pHep® 4 |
| HA-98128 | pHep® 5 |
Complete your setup
What it needs to run, added to the same quote.-
pH Calibration SolutionspH buffers to calibrate itPrice on quote
Documents
Calibration and repair
Send it to our service team. We evaluate the instrument and send a detailed quote before any work starts.
Compare with similar models
Hanna Instruments · Water Quality Meter| Spec | This model Hanna pHep®4 & pHep®5Price on quote
|  Hanna ORP TesterPrice on quote
|  Hanna Combo pH/EC/Temp/TDS Testers in one UnitPrice on quote
|
|---|---|---|---|
| pH Range | : -2.0 to 16.0 pH | — | 0.00 to 14.00 pH |
| Temperature Range | -5.0 to 60.0°C / 23.0 to 140.0°F | -5.0 to 60.0°C / 23.0 to 140.0°F | 0.0 to 60.0°C / 32.0 to 140.0°F |
| Temperature Resolution | 0.1°C / 0.1°F | 0.1°C / 0.1°F | — |
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice.
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Can ERE calibrate or repair it?
Yes. Our service shop calibrates and repairs it in-house. Request service
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