Apera PH850-DP Portable pH Meter Kit — Professional pH for Food, Dairy, Protein & Biotech Samples
The Apera PH850-DP is a lab-grade portable pH meter purpose-built for demanding sample types where standard electrodes fail. Paired with the Swiss LabSen® 823 Glass 3-in-1 pH/Temperature Electrode, it delivers accurate, stable pH readings in dairy products, protein-containing liquids, liquid foods, biotech, and pharmaceutical samples — including full compatibility with TRIS buffers. Converts between portable field meter and benchtop meter via its integrated foldable stand.
Key Features
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Swiss LabSen® 823 Electrode — Engineered for milk, cream, yogurt, sauces, jam, soup, and protein-rich liquids; triple ceramic junctions + silver-ion-trap reference system prevent junction clogs from proteins, sulfides, and TRIS buffers
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Protelyte Outer Electrolyte — Apera’s proprietary electrolyte formulated specifically for protein-containing solutions to prevent junction clogging
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Blue Gel Inner Solution — Non-flowing gel eliminates air bubbles and heat convection; electrode works correctly even when held upside-down
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Swiss Patented pH/Temperature Combination Structure — Increases temperature response speed by 40% vs. conventional isolated thermistors, accelerating ATC and reading stabilization
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Silver-Ion-Trap Reference System — Absorbs all exuded Ag⁺ ions, preventing junction clogs in sulfide, protein, and TRIS buffer samples
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TRIS Buffer Compatible — Supports pharmaceutical and biotech workflows requiring TRIS buffer calibration
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1–3 Point Auto Calibration — Auto-recognizes pH 1.68, 4.00, 7.00, 10.01, 12.45 (USA & NIST); electrode slope display for probe health monitoring
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ATC 0–100°C (Auto or Manual) — Full temperature compensation range for hot food and lab samples
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IP57 Waterproof + Rubber Sleeve — Dustproof and impact-resistant; built for harsh food production and lab environments
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Portable + Benchtop Dual Mode — Foldable stand converts the meter to a benchtop unit; powered by 3× AA batteries or USB DC5V
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Large LCD with Stability Icon — Smiley face stable reading indicator; simultaneous pH + temperature display; calibration completion icons
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Self-Diagnosis — Out-of-range value and electrode invalidation alerts
Technical Specifications
| Meter Specs |
|---|
| pH |
Range |
0 – 14 pH |
| Resolution |
0.01 / 0.1 pH |
| Accuracy |
±0.01 pH ± 1 digit |
| ATC |
0–100°C (Auto or Manual) |
| mV |
Range |
±1000 mV |
| Resolution |
1 mV |
| Accuracy |
±0.2% F.S. ± 1 digit |
| Temperature |
Range |
0–100°C (32–212°F) |
| Resolution |
0.1°C |
| Accuracy |
±0.5°C ± 1 digit |
| Calibration |
Auto 1–3 points; USA & NIST buffer recognition |
| Power |
3× AA batteries or DC5V (USB) |
| Waterproof Rating |
IP57 (Dustproof & Waterproof) |
| Dimensions & Weight |
Meter: 88×170×33 mm / 313 g | Case: 360×270×76 mm / 1.6 kg |
| LabSen 823 Electrode Specs |
|---|
| Housing Material |
Lead-free glass |
| Glass Membrane Shape |
Hemispherical |
| Junction |
Triple ceramic |
| Reference Electrode |
Silver-ion-trap (long-life) |
| Outer Electrolyte |
Protelyte (protein-safe) |
| Inner Solution |
Blue gel (non-flowing) |
| Temperature Sensor |
Yes (integrated) |
| pH Range |
0 – 14 pH |
| Temperature Range |
-5 – 100°C (23–212°F) |
| Connector |
BNC and RCA |
Applications
Dairy (milk, cream, yogurt, buttermilk), liquid foods (jam, BBQ sauce, soup, broth), protein-containing liquids, biotech and pharmaceutical samples, TRIS buffer workflows, food production QC, and general water solutions.
