Hanna Instruments reserves the right to modify the design, construction and appearance of its products without advance notice. The HI 98121 Waterproof pH/ORP and Temperature Meter comes with a one-year warranty. During the warranty period, defects in workmanship and materials will be repaired or replaced free of charge. The electrode is covered for six months. The warranty does not cover damages due to accident, misuse, tampering, or lack of prescribed maintenance. If service is required, contact the dealer from whom you purchased the instrument. When reporting under warranty, provide the model number, date of purchase, serial number, and nature of the failure. If the repair is not covered by the warranty, you will be notified of the charges incurred. To return the instrument to Hanna Instruments, obtain a Returned Goods Authorization Number from the Customer Service department and send it with prepaid shipment costs. Proper packaging is essential for complete protection during shipping. All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner.
The document serves as an instruction manual for the Hanna Instruments HI 98121 Waterproof pH/ORP & Temperature Meter. It details the preliminary examination of the device, including checking for shipping damage and verifying included accessories such as the HI 73127 pH electrode and batteries.
The guide covers operational procedures for both pH and ORP measurements, explaining how to use the SET/HOLD button for mode selection and calibration. It also provides specific instructions for electrode maintenance, storage solutions, and battery replacement, along with a list of compatible accessories and safety warnings.
| pH Range | -2.00 to 16.00 pH |
|---|---|
| mV (ORP) Range | -5.0 to 60.0°C / 23.0 to 140.0°F |
| Temperature Resolution | 0.1°C or 0.1°F |
The instrument is warranted for one year against defects in workmanship and materials when used for its intended purpose.
The electrode is warranted for a period of six months.
The meter uses 4 x 1.5V batteries.
No, to avoid damages or burns, do not perform any measurement in microwave ovens.