Thermo Scientific Orion Star A1115 Laboratory pH Meter for Precise pH Measurement in Liquids
- 12 months limited warranty
- Ready indicator alerts when readings are stable
- Three-point pH calibration and automatic recognition of USA/NIST and DIN buffers
Thermo Scientific™ Orion™ Star A1115 Benchtop pH Meter – Reliable, User-Friendly Laboratory Measurements
Accurate pH, mV, and Temperature Testing with Simple Operation
The Orion Star A1115 benchtop pH meter provides labs with a cost-effective, easy-to-use solution for routine pH, millivolt, and temperature measurements. Designed for quick calibration and reliable readings, this meter supports up to a three-point pH calibration with convenient recall of calibration points and slopes, making it ideal for academic, quality control, and research laboratories seeking precision without complexity.
Key Features
- Large, clear display shows pH/mV readings, temperature, calibration status, meter mode, and power source for intuitive monitoring.
- AUTO-READ™ technology locks in stable readings, while the ready indicator signals when measurements are complete.
- Supports up to three-point pH calibration and automatically recognizes USA/NIST and DIN buffer standards.
- Calibration slope data can be easily recalled for verification of procedures.
- Nonvolatile memory stores up to 50 data points for convenient record keeping.
- Electrode arm and improved probe holder simplify sample measurements and enhance probe safety.
- Power options include a universal AC adapter or four AA batteries (sold separately) for flexible DC operation.
- IP54-rated housing protects against splashes and allows optional wall mounting to save bench space.
In facilities where combined spectrophotometric and pH data enhances workflows, the Multiparameter Benchtop Photometer and pH Meter allows simultaneous photometric and pH assessment in a single bench‑space‑saving instrument. For simpler routine pH, mV, and temperature checks, the Hanna Chocolate pH Meter provides a robust portable alternative calibrated for food‑based sample matrices while maintaining consistent performance across quality control checkpoints.
Q&A
What types of measurements can the Orion Star A1115 perform?
It measures pH, millivolts (mV), and temperature, supporting routine lab analyses and simple monitoring tasks.
How many calibration points does this meter support?
The meter allows up to three-point pH calibration, with easy recall of calibration points and slope for quality checks.
Is this meter suitable for small labs or teaching labs?
Yes, the Orion Star A1115 is budget-friendly, user-friendly, and ideal for academic labs, quality control, or research settings.
Can it store measurement data?
Yes, it has nonvolatile memory to hold up to 50 data points, making record-keeping and tracking simple.
Is it splash-resistant?
Yes, the IP54-rated housing protects the meter from splashes, and it can optionally be wall-mounted to save bench space.
| Data Points | 50 |
|---|---|
| Display Type | LCD |
| Languages | English |
| Log Function Type | Automatic data logging with Auto-Read measure mode; manual data logging with Continuous measure mode |
| Temperature (English) Operating | 41° to 113°F (ambient) |
| Stability | Smart Stability and Smart Averaging |
| Resolution (Temperature) | 0.1°C, 0.1°F |
| Temperature Range (English) | 22.0° to 221.0° F |
| Temperature Probe Calibration | 1 point temperature offset calibration |
| Temperature (Metric) Operating | 5° to 45°C (ambient) |
| Temperature Range (Metric) | -5.0° to 105.0° C |
| Warranty | 3 years meter warranty |
| Weight (Metric) | 0.9kg |
| Temperature Selection | Manual or automatic with ATC temperature probe |
| Weight (English) | 2 lb. |
| AC Adapter | Universal 50-60 Hz, 100-240 VAC power adapter (Cat. No. 1010003) |
| Accuracy (pH) | ±0.01pH |
| Accuracy (mV) | ±0.2 mV or ±0.05% of reading whichever is greater |
| Accuracy (Temperature) | ±0.1°C |
| Battery Life | 2000 hr. |
| Battery Type | 4 x AA (sold separately) |
| Calibration | pH, relative mV (RmV), and temperature |
| Calibration Points | 1 to 3 |
| Data Management Details | Internal data point memory |
| Channels | 1 |
| Certifications/Compliance | CE, TUV 3-1, FCC Class A |
| Description | Orion Star A1115 benchtop pH meter kit with Triode pH/ATC electrode, solutions and stand |
| Dimensions (L x W x H) | 24cm x 18cm x 11cm (9.5 in. x 7.1 in. x 4.3 in.) |
| Resolution (pH) | 0.1, 0.01 |
| Range (pH) | -2.00 to 16.00 |
| Includes | Star A1115 pH meter, 9157BNMD Orion Triode epoxy-body pH/ATC electrode, 916099 pH buffer and solution kit, electrode stand, universal power adapter, literature CD, printed quick start guide and meter test certificate |
| IP Rating | IP-54 |
| Inputs | BNC (pH or ORP electrode),8 pin MiniDIN (ATC temperature probe) |
| Isopotential Point | 7.00pH |
| Keypad | Simple with highlighted measure key, scroll and shortcut keys |
| Memory | Non-volatile memory preserves log and settings |
| Measurement Modes | pH, mV or relative mV (RmV) with temperature |
| Model | Orion Star A1115 Benchtop pH/mV/RmV/Temperature Meter |
| Outputs | None |
| Probe Type | pH electrode, ORP electrode, ATC temperature probe (includes 9157BNMD Orion Triode pH/ATC electrode) |
| Power Supply | Universal AC adapter (included) or 4 AA batteries (sold separately) |
| Range (Relative mV) | ±1999.9mV |
| Relative Humidity Range | 5 to 85%, non-condensing |
| Resolution (mV) | 0.1mV |
| Range (mV) | ±1600.0 mV |
| Unit Size | Each |
| Price | $USD 857.00 |
|---|
Need larger scale equipment for a bigger project?
Our parent site geneq.com works by quote requests, so we can offer a unique price per any combination of items you choose, and the best shipping company/route for weighty items. We distribute the biggest names in the industry since 1972!


