The HQ4100 is a reliable, single-channel portable meter designed for accurate measurement of pH, conductivity, TDS, salinity, dissolved oxygen (DO), ORP, and ISE (electrodes sold separately). Ideal for field and laboratory use, it features a high-resolution color display, intuitive navigation, and compatibility with smart IntelliCAL probes that store calibration data for consistent results. With rugged, waterproof construction and USB data export, the HQ4100 offers professional-grade performance for water, environmental, and industrial testing.
The HQ4100 Portable Multi-Meter is a cutting-edge, single-channel instrument engineered for accurate and reliable water quality measurements in both laboratory and field settings. Designed with the needs of environmental scientists, water utility operators, researchers, and industrial technicians in mind, this meter offers unmatched flexibility by supporting a wide range of parameters including pH, conductivity, total dissolved solids (TDS), salinity, dissolved oxygen (DO) (with LDO and polarographic probes), oxidation-reduction potential (ORP), and ion-selective electrodes (ISE).
Built on the trusted Hach HQ platform, the HQ4100 ensures intuitive operation through a large, high-resolution color display and a user-friendly interface that simplifies calibration, data logging, and sample management. Its smart digital IntelliCAL probes (sold separately) automatically recognize the sensor type, serial number, and calibration history, reducing human error and ensuring consistent results across users and sites.
With robust IP67-rated waterproof construction and long battery life, the HQ4100 is ideal for demanding field conditions. Seamless data transfer via USB enhances workflow efficiency, making it easy to integrate with lab systems or reporting tools. Whether you're conducting spot checks in remote locations or routine testing in a controlled environment, the HQ4100 delivers lab-quality precision and operational confidence.
Advantages:
-
Flexibility: Single-channel design allows for easy switching between different measurements without the need for multiple instruments.
-
Accuracy: Proven technology ensures superior accuracy and response time, even in challenging samples or field conditions.
-
Compliance: GLP-compliant features include time, date, sample ID, operator ID, and calibration records.
-
Multilingual Support: Interface available in 27 languages, accommodating a diverse range of users.
Technical Specifications:
| Parameter | Specification |
|---|---|
| Accessories Included | USB charger, power cable, and clips |
| Automatic Buffer Recognition | Yes |
| Backlight | Yes |
| Barometric Pressure Measurement | Automatic compensation of DO (with LDO or LBOD probe) |
| Calibration | Demal, Molar, NaCl, Standard sea water, User-defined |
| Calibration Intervals/Alerts | Off, selectable from 2 hours to 7 days |
| Certifications | CE, FCC, ISED, RCM, KC, ETL Verified: US DOE/NRCan Energy Efficiency, RoHS |
| Conductivity Measurement Range | Yes |
| Custom Calibration Standards | Yes |
| Data Export | USB to PC or USB storage device (dependent on storage capacity) |
| Data Memory | 100,000 data points |
| Data Storage | Automatic (Press to Read, Interval), Manual (Continuous Read Mode) |
| Dimensions (H x W x D) | 63 mm x 97 mm x 220 mm |
| Display | Up to 3 parameters at a time (HQ model dependent) |
| Display Type | 640x480 Color TFT |
| DO Measurement Range | 0.1 - 20.0 mg/L (ppm), 1 - 200% saturation |
| DO Resolution | 0.1 |
| Enclosure Rating | IP67 (with battery compartment installed) |
| GLP Features | Date, Time, Sample ID, Operator ID, Calibration |
| Inputs | 1 |
| Instrument | Portable |
| ISE Direct Measurement Range | Yes |
| ISE Electrode Calibration | Yes |
| Kit? | Meter only |
| Languages | 27 languages (incl. English, Russian, Spanish, German, Chinese, etc.) |
| Lock Function | Continuous / Auto-stabilization / At Interval |
| Measurement Method | Probe-specific programmed method settings |
| Model | HQ4100 Multi/ISE/1 Channel |
| mV Measurement at Stable Reading | Yes |
| mV Measurement Range | Yes |
| mV Resolution | 0.1 mV |
| Operating Error Messages | Clear text error messages |
| Operating Humidity | 90% (non-condensing) |
| Operating Interface | Soft Touch Keypad |
| Operating Temperature | 0 - 60 °C |
| ORP Electrode Calibration | Predefined standards incl. Zobell's solution |
| Parameter Types | pH, Conductivity, TDS, Salinity, DO, ORP, ISE |
| pH Buffer Sets | Colour-coded, IUPAC, DIN, and user-defined |
| pH Electrode Calibration | 1–3 points; calibration summary logged and displayed |
| pH Measurement Range | 0 - 14 pH |
| pH Resolution | Selectable: 0.001 / 0.01 / 0.1 pH |
| Power Supply | Li-ion battery 18650 (internal); USB power adapter (100–240 VAC, 50/60 Hz) |
| Probe Type | IntelliCAL (Standard Lab or Rugged Field) |
| Probes Included | None |
| Protection Class | IEC Class III (SELV) |
| Salinity Measurement Range | 0 - 42 ppt (‰) |
| Salinity Resolution | 0.01 ppt (‰) |
| Sensor A/B/C | None |
| Storage Conditions | -20 to 60 °C; max. 90% RH (non-condensing) |
| TDS Measurement Range | 0.00 mg/L - 50.0 g/L NaCl |
| TDS Resolution | 0.01 mg/L - 0.1 g/L (depending on range) |
| Temperature Compensation | Automatic (for pH) |
| Temperature Measurement | °C or °F |
| Temperature Resolution | 0.1 °C |
| Type of Measurement | Field measurements |
| Warranty | 36 months |
| Weight | 530 g (meter only) |
| What's Included? | HQ4100 meter, manuals, Li-Ion battery, USB charger with cable (USA) |
| Brand | Hach |
| Measuring range | 0 - 14 pH |
