Orion™ Pro Star PH211 pH/ORP Bench Meter with Stand
Designed to provide accurate and reliable pH, ORP and temperature analysis, the Orion Pro Star PH211 bench meter is well suited for laboratories that desire a modern meter with advance performance. Featuring a 7-inch, high-resolution color display with responsive capacitive touchscreen, the Orion Pro Star meter focuses on ensuring a streamlined, easy to use, innovative meter for your testing needs. The Orion Pro Star meter offers onscreen guidance with step-by-step instructions and supports GLP compliance with date and time stamped calibration logs and data logs.
Orion Pro Star PH211 pH/ORP bench meters are designed to provide accurate and reliable testing in laboratories that need a modern, easy-to-operate meter with advanced performance and reliable data reporting. Orion Pro Star bench meter benefits include:
- Large 7-in., high-resolution color display
- Responsive touchscreen operable with gloves
- Angled display to help ensure ergonomic viewing
- Streamlined, easy to operate user interface
- Vertical meter orientation helps optimize bench space
- Supports GLP compliance
- Stores 20 calibration logs per parameter with date and time
- Stores 10,000 data log sets with date and time
- Outputs to a printer, computer, or USB flash drive for long-term data retention
- Inputs sample ID with optional USB barcode scanner, USB keyboard or USB mouse
- Stirs samples with meter-controlled and meter-powered stirrer probe
Orion Pro Star PH211 pH/ORP bench meters offer the following measurements:
- pH, mV or ORP with temperature
Easily control the expansive 7-inch color touchscreen display. The Orion Pro Star PH211 presents a thoughtfully designed interface to give you everything you need at your fingertips. Seamlessly navigate to view measurements, complete calibrations, export data, and more on the crystal clear, high-resolution screen. Equipped with an ergonomic angled display, users can view key details clearly and comfortably. A responsive touchscreen helps ensure optimal usability in a variety of environments, even when a gloved hand is required.
Built to help meet the needs of your testing preferences, the Orion Pro Star PH211 empowers flexibility. Measurements can be viewed in a basic, advanced or customized format. The basic format provides a streamlined look at measurements, whereas the advanced layout provides a more detailed view. Alternatively, users can opt to display or hide elements to their liking via a customized layout. Individual measurements can also be viewed in a graph with temperature for measurement versus time studies.
Enhance convenience and efficiency with the assistance of optional meter accessories. While conducting measurements, easily input sample identification details using a USB barcode scanner, USB keyboard, or USB mouse. Eliminate the need for magnetic stir plates and bars by adding a meter-controlled stirrer probe to help achieve uniform sample stirring.

| AC Adapter | Universal 100-240 V 50/60 Hz power supply with wall plugs for US/Japan, Euro, UK/Singapore, Australia/New Zealand and China outlets |
| Accuracy (Temperature) | ±0.3°C, ±0.5°F |
| Accuracy (mV) | ±0.2 mV or ±0.05% of the reading, whichever is greater |
| Accuracy (pH) | ±0.002 pH |
| Alarm Output | Calibration reminder alarm, high and low limit alarm per parameter |
| Calibration Points (pH) | 1 to 5 points |
| Certifications/Compliance | CE, TUV 3-1, FCC Class A |
| Channels | 1 |
| Dimensions (L x W x H) | 218.9 x 153.2 x 91.33 mm; 8.62 x 6.03 x 3.60 in. |
| For Use With (Application) | Meter with stand, purchase electrode for applications separately |
| IP Rating | IP54 |
| Includes | Meter with electrode stand, USB flash drive, computer cable, 100-240V 50/60Hz universal power adapter (purchase electrode separately) |
| Inputs | BNC for pH or ORP, 8-pin MiniDIN for ATC, pin-tip for reference |
| Isopotential Point | 7.000 pH |
| Keypad | Capacitive touchscreen user interface |
| Languages | Chinese, English, French, German, Italian, Japanese, Korean, Portuguese, Spanish |
| Memory | Non-volatile |
| Methods | 10 |
| Model | PH211 |
| Outputs | USB flash drive, computer or printer (STARA-106) |
| Range (ORP) | -2000 to 2000 mV |
| Range (Relative mV) | -2000 to 2000 mV |
| Resolution (Temperature) | 0.1°C, 0.1°F |
| Resolution (mV) | 0.1 mV |
| Temperature Probe Calibration | 1 or 2 point temperature offset calibration |
| Temperature Range (English) | -22°F to +266°F |
| Temperature Selection | Automatic with ATC temperature sensor, ambient or manual |
| Type | Meter with Stand |
| Warranty | 2 year meter warranty |
| Weight (English) | 2.20 lbs. |
| Weight (Metric) | 1.00 kg |
| Backlight Option | Yes |
| Calibration | pH, ORP, Temperature |
| Calibration Points | 1 to 5 (pH),1 (ORP),1 to 2 (Temperature) |
| Data Points | 10,000 with Date and Time Stamp |
| Display Type | 7-in. High-resolution Color Graphic LCD |
| Log Function Type | Automatic with Auto-Read and Timed Read Modes, Manual with Continuous Read Mode |
| Measurement Modes | pH with mV and Temperature, ORP with mV and Temperature |
| Range (mV) | -2000 to 2000 mV |
| Range (pH) | -2 to 20 |
| Resolution (pH) | 0.1, 0.01 or 0.001 pH |
| Temperature Range (Metric) | -30°C to +130°C |
| Unit Size | Each |

















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