Product Overview
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HI991301
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High-range water quality meter pH: 0.00 to 14.00 pH, temperature: 0.0 to 60.0 °C, 32.0 to 140.0 °F EC: 0.00 to 20.00 mS/cm, TDS: 0 to 2000 ppm (mg/L)
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Multi-level LCD allows manual testing anytime, anywhere, with pH and temperature or EC/TDS and temperature readable at a glance from any angle, automatic calibration recognition, temperature compensation, and two-button operation simplifies the testing process for any user. The quick-connect DIN connector makes connecting and disconnecting the probe simple and convenient. The rubber coating protects the cable and provides a waterproof seal without twisting; suitable for providing laboratory-grade measurement results even in harsh environments
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New exterior design, extra-large dual-line screen display, on-screen calibration procedure prompts;
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User-friendly operation interface, stability indicator, two-button simple operation, convenient to use;
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Simultaneously measures and displays pH/(EC/TDS) and °C, with quick switching between pH, EC, and TDS;
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1-2 point automatic pH calibration recognition, with 2 sets of built-in pH standard calibration points; pH4.01, 7.01, 10.01 and pH4.01, 6.86, 9.18
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Conductivity and TDS single-point automatic calibration recognition, with built-in standard points;
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EC: 1413 or 12880μS/cm; TDS: 1382, 1500ppm or 6.44 ppt
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Automatic or manual temperature compensation, ensuring measurement precision and accuracy in different environments;
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Battery replacement is simple and quick, BEPS low-battery error-prevention system avoids incorrect measurements;
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Suitable for providing laboratory-grade measurement results even in harsh environments.
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pH PH |
Measuring range | 0.0 to 14.0 pH | |
| Resolution | 0.1 pH | ||
| Accuracy | ±0.01 pH | ||
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Conductivity EC |
Measuring range |
0.00 to 20.00 mS/cm |
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| Resolution | 0.01 mS/cm | ||
| Accuracy | ±2% F.S. | ||
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Total Dissolved Solids TDS |
Measuring range |
0.00 to 10.00 ppt(g/L) |
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| Resolution | 0.01 ppt (g/L) | ||
| Accuracy | ±2% F.S. | ||
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Temperature |
Measuring range | 0.0 to 60.0℃/32.0 to 140.0 ℉ | |
| Resolution | 0.1℃ /0.1 ℉ | ||
| Accuracy | ±0.5℃/±1 ℉ | ||
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Calibration mode |
pH |
1-2 point automatic calibration recognition, with 2 sets of built-in standard calibration points pH4.01, 7.01, 10.01 and pH4.01, 6.86, 9.18 |
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| EC single-point calibration | 1413μS/cm | ||
| TDS single-point calibration | 1382, 1500ppm | ||
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Temperature compensation |
pH |
Automatic temperature compensation: -5.0 to 60.0℃(23.0 to 140.0 ℉) |
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| EC-TDS | Compensation coefficient β=0.0-2.4% /℃ adjustable, increment 0.1 | ||
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Other specifications |
TDS factor | Adjustment range: 0.45 to 1.00, increment 0.1 (default: 0.50) | |
| Electrode type | HI1288 PVC body with built-in temperature sensor pH-EC-TDS multiparameter electrode | ||
| Power supply type | 3x1.5V AAA batteries, auto power-off after 8 minutes of no operation | ||
| Operating environment | 0℃ to 50℃（32 ℉ to 122 ℉），max 100% RH | ||
| Dimensions | Meter dimensions: 152x58x30mm | ||
| Weight | Meter weight: 205g | ||
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Meter HI991300 or HI993301, HI1288 dedicated built-in temperature sensor pH-EC-TDS multiparameter electrode, pH-conductivity standard buffer solution kit, Chinese and English instruction manual
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The HI991301 is designed to measure pH, conductivity (EC), total dissolved solids (TDS), and temperature using a single probe. From setup to calibration, everything can be done with just two buttons. The meter is waterproof with IP 67 protection class.
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The HI12883 pre-amplified multiparameter probe features easily cleanable sensors and a renewable cloth junction to extend probe life. To prevent interference from transient electrical noise, a solid-state amplifier is integrated into the HI12883.
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User-selectable features include different TDS factors from 0.45 to 1.00 and a temperature coefficient (β) range from 0.0 to 2.4% for greater consistency and repeatability. Standardized buffer recognition values are also selectable.
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These instruments fit easily in the palm of your hand, and the bottom probe connection ensures the electrode cable does not get in your way. The large multi-level LCD displays the primary reading, temperature, and calibration
| SKU | HI991301 |
|---|---|
| Product Name | Portable Waterproof pH/EC/TDS Meter (High Range) - HI991301 |
| Quote Required | Yes |
| pH Range | -2.00 to 16.00 pH; -2.0 to 16.0 pH |
| pH Resolution | 0.01 pH; 0.1 pH |
| pH Accuracy | ±0.02 pH; ±0.1 pH |
| pH Calibration | automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18) |
| pH Temperature Compensation | automatic 0 to 50 °C; 32 to 122 °F |
| pH CAL Check (electrode diagnostics) | probe condition indicator |
| pH Sensor Check | yes |
| mV Range | ±825 mV (pH‐mV) |
| mV Resolution | 1 mV (pH‐mV) |
| mV Accuracy | ±1 mV (pH‐mV) |
| EC Range | 0.00 to 20.00 mS/cm |
| EC Resolution | 0.01 mS/cm |
| EC Accuracy | ±2% F.S. |
| EC Calibration | automatic, one-point at 12.88 mS/cm |
| TDS Range | 0.00 to 10.00 ppt (g/L) |
| TDS Resolution | 0.01 ppt (g/L) |
| TDS Accuracy | ±2% F.S. |
| TDS Calibration | automatic |
| EC/TDS Temperature Compensation | automatic |
| Temperature Correction Coefficient | β selectable from 0.0 to 2.4 %/ °C with 0.1 increments |
| EC to TDS Conversion Factor | selectable from 0.45 to 1.00 with 0.01 increments |
| Temperature Range | ‐5.0 to 105.0 °C; 23.0 to 221.0 °F |
| Temperature Resolution | 0.1°C; 0.1°F |
| Temperature Accuracy | ±0.5°C; ±1°F |
| pH/EC Probe | HI12883 PVC body, pre-amplified multiparameter probe with internal temperature sensor, quick connect DIN connector and 1m cable |
| Automatic Shut-Off | user selectable |
| Battery Type/Life | 1.5V (3) AAA / approximately 600 hours of continuous use |
| IP Protection | IP67 |
| Environment | 0 to 50°C (32 to 122°F); RH max 100% |
| Dimensions | 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”) |
| Weight | 196 g (6.91 oz.) |
| Ordering Information | HI991301 is supplied complete with HI12883 pH/EC/temperature probe, pH 4.01 calibration buffer sachet (1), pH 7.01 calibration buffer solution sachet (1), HI70030 12.88 mS/cm calibration solution sachet (1), HI70038 6.44 ppt calibration solution sachet (1), HI700601 electrode cleaning solution sachet (2), 100 mL beaker (1), batteries, calibration certificates for both meter and probe, instruction manual, and rugged thermoformed carrying case. |
Case Studies
Municipal Wastewater Treatment · Hanna — Stock Configuration Case
Project Overview
The site is the inlet, biological and outlet stages of a municipal plant. The customer wanted Hanna properly configured on the existing plant, with the aim of covering portable and laboratory water testing with Hanna instruments.
Technical Challenges
What actually causes trouble is high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. All of this means the Hanna configuration has to involve selected by parameter set, accuracy and field portability.
Configuration
Supply and installation were organised through the stock channel: configuring from stock and delivered quickly. On site this meant selected by parameter set, accuracy and field portability, checked line by line against: stable compliance with Grade 1A discharge limits and online data reporting.
Performance
After commissioning the outcome is results available on site, reducing lab re-checks, and the readings are now used for process tuning.
Food & Beverage · Hanna — Stock Configuration Case
Site Conditions
This is a Food & Beverage customer whose plant is at dosing, pasteurising, filling and CIP stages. The main task was covering portable and laboratory water testing with Hanna instruments.
The Problem
The difficulty lies in syrups, dairy and beverages that scale easily, under strict hygienic requirements; at the same time frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. Specification therefore means selected by parameter set, accuracy and field portability.
What We Did
We took a stock channel approach — configuring from stock and delivered quickly. Delivery was built around selected by parameter set, accuracy and field portability, with point-by-point checks on: food-safety and hygienic design per 3-A / EHEDG.
Operating Outcome
In service the system performs as intended — results available on site, reducing lab re-checks, with routine maintenance falling noticeably.
Chemical & Pharmaceutical · Hanna — Stock Configuration Case
Application Context
reactors, metering vessels and finished-product tanks is a typical Chemical & Pharmaceutical duty. The project started from Hanna, focusing on covering portable and laboratory water testing with Hanna instruments.
Process Constraints
corrosion plus Ex protection shortens instrument life and makes downtime costly, and highly corrosive media with solvents and crystallisation, partly in explosive atmospheres only amplify it. The Hanna specification must therefore cover selected by parameter set, accuracy and field portability.
Delivery Approach
Delivery was handled as the stock channel — configuring from stock and delivered quickly. Execution centred on selected by parameter set, accuracy and field portability, together with Ex certification and GMP traceability of records.
Field Results
Operation shows the benefit clearly — results available on site, reducing lab re-checks, with confidence in this measuring point improving markedly.
Power & Energy · Hanna — Stock Configuration Case
Customer Profile
The typical setting in Power & Energy is boiler feedwater, turbine condensate and FGD/DeNOx systems. The measuring point is Hanna; the focus is covering portable and laboratory water testing with Hanna instruments.
Key Difficulties
Conditions are high temperature and pressure with both steam and saline water and, on top of that, drift under high temperature and pressure, with very costly unplanned outages, which a standard configuration cannot handle for long. The design therefore starts with selected by parameter set, accuracy and field portability.
Implementation
The scope ran through the stock channel: configuring from stock and delivered quickly. Technically it hinges on selected by parameter set, accuracy and field portability, and on these requirements: compliance with power-industry codes and unit availability targets.
Customer Benefit
In practice this means results available on site, reducing lab re-checks, which cut the workload on the site maintenance team.
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