Dual-channel GLP benchtop multiparameter measurement — pH, EC, TDS, salinity, and resistivity in one instrument.
The Apera PC9500 (SKU: AI5634) is a research-grade benchtop multiparameter meter built for operators who need lab-accurate, audit-ready data on nutrient solution, feed water, and run-off — simultaneously measuring pH/mV(ORP) and conductivity/TDS/salinity/resistivity on two independent channels. Supplied complete with the Apera TestBench workstation, Swiss LabSen 211 glass pH electrode, MP500 temperature probe, and 2401T-F conductivity electrode.
The Apera PC9500 is a Premium Series, research-grade benchtop multiparameter meter designed to fully meet GLP (Good Laboratory Practice) standards. It simultaneously measures pH, mV/ORP, conductivity, TDS, salinity, and resistivity across two independent channels — no switching between modes to capture a complete nutrient-solution profile. The large, backlit LCD displays pH, conductivity, and temperature readings at the same time, alongside calibration status and data-logging indicators.
The meter ships as a complete kit: PC9500 base unit with Apera TestBench integrated workstation, Swiss LabSen 211 glass-body pH electrode with MP500 temperature probe, 2401T-F glass-body conductivity/temperature electrode, pH calibration standards (4.00, 7.00, 10.01), conductivity standards (84 µS/cm, 1413 µS/cm, 12.88 mS/cm), USB cable, PC-Link software flash drive, USB keyboard, and 9V power adapter (120V input). A compatible GLP printer is sold separately.
Commercial cannabis and hemp cultivation facilities running coco, rockwool, or hydroponic systems require nutrient-solution data that is precise, repeatable, and traceable — the kind that holds up under a state compliance audit or a quality-control review. The PC9500 is the right tool when a pocket tester or entry-level benchtop meter is no longer adequate for the volume of daily checks, the precision requirements of a research or breeding program, or the documentation requirements of a licensed facility.
Tissue-culture labs, propagation rooms, and fertigation-management teams will use this meter at the bench to validate calibration of in-line sensors, verify concentrate batches, measure run-off EC against target feed EC, and log every reading against sample ID, user ID, and electrode ID. The 2,000-record GLP datastore — exportable by USB to PC or a compatible printer — keeps a full chain of custody on every measurement taken.
The included Swiss LabSen 211 pH electrode features a low-impedance blue impact-resistant glass membrane and a long-life reference system, achieving ±0.003 pH accuracy on its own. The meter's input circuitry pushes system pH accuracy to ±0.002 pH. Calibration runs 1–5 points with automatic buffer recognition across standard series (1.68 / 4.00 / 7.00 / 10.01 / 12.45), NIST, CH, and user-defined standards. Automatic temperature compensation covers 0–100°C via the MP500 probe. The electrode is compatible with TRIS buffers and all Swiss LabSen specialty electrodes for difficult sample matrices.
The 2401T-F glass-body conductivity electrode covers 0–200 mS/cm at ±0.5% F.S. accuracy, with 1–4 point automatic calibration. One-tap switching converts readings among conductivity, TDS, salinity, and resistivity without re-measuring. Three salinity calculation modes are available: general (linear), NaCl, and saltwater. The BNC conductivity connector is also compatible with the 2310T-F electrode (up to 2000 mS/cm) and DJS-0.1-F for high-purity RO/DI water — useful for verifying source water before building a nutrient solution.
The Apera TestBench consolidates a flexible electrode holder, intelligent magnetic stirrer, and buffer organizers into a single integrated workstation, which keeps both electrodes positioned, samples stirred consistently, and calibration solutions organized at the bench. The i-Guide on-screen tutorial system is accessible via a dedicated key and walks operators through setup and calibration step-by-step — reducing training time for new staff.
The PC9500's GLP data architecture stores up to 2,000 measurement groups, each tagged with electrode ID, user ID, sample ID, company name, calibration data, date, and time. Manual and auto-timed data logging modes are both supported. Records can be exported via USB to PC using the included PC-Link software, or printed in real time to a compatible GLP pin-type printer (sold separately). Calibration password protection prevents unauthorized changes to calibration data — an important control for SOPs in licensed facilities.
The meter's self-diagnosis routine evaluates electrode condition and flags issues before they affect measurement accuracy. Electrode slope is automatically calculated and displayed after each calibration, giving operators a clear pass/fail signal on electrode health. These features, combined with the lockable calibration history and full data export, make the PC9500 a practical fit for state-mandated quality documentation, internal SOP compliance, and any operation moving toward ISO or GMP alignment.
| Model / SKU | Apera PC9500 / AI5634 |
| pH Range | -2.000 to 20.000 pH |
| pH Resolution | 0.1 / 0.01 / 0.001 pH (selectable) |
| pH Accuracy | ±0.002 pH ±1 digit |
| mV / ORP Range | ±2000.0 mV |
| Conductivity Range | 0 to 200 mS/cm (2401T-F); up to 2000 mS/cm with optional 2310T-F electrode |
| Conductivity Accuracy | ±0.5% F.S. |
| Resistivity Range | 0.00 Ω·cm to 100 MΩ·cm |
| ATC Range (pH) | 0–100°C (auto or manual, via MP500 probe) |
| pH Calibration Points | 1–5 point auto; buffers: 1.68 / 4.00 / 7.00 / 10.01 / 12.45; USA, NIST, CH, or user-defined |
| Conductivity Calibration | 1–4 point auto; standards: 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, or user-defined |
| Salinity Modes | General (linear), NaCl, Saltwater |
The PC9500 runs two independent channels at the same time: Channel 1 reads pH and mV/ORP; Channel 2 reads conductivity, TDS, salinity, or resistivity (one-tap switching among them). Both channels plus temperature display simultaneously on the backlit LCD — you get a complete nutrient-solution profile in a single measurement event, not sequential reads.
Yes. The PC9500 is designed to fully meet GLP (Good Laboratory Practice) standards. Each stored record is tagged with electrode ID, user ID, sample ID, company name, calibration password, date, and time. Records export via USB to PC or a compatible GLP printer. Calibration password protection prevents unauthorized changes. The self-diagnosis routine and electrode slope display give an auditable record of electrode condition at each calibration event.
The kit includes: PC9500 meter with Apera TestBench workstation, Swiss LabSen 211 glass pH electrode, MP500 temperature probe, 2401T-F glass conductivity/temperature electrode, pH calibration standards (4.00, 7.00, 10.01), conductivity standards (84 µS/cm, 1413 µS/cm, 12.88 mS/cm), USB cable, PC-Link software flash drive, USB keyboard, and 9V power adapter. A compatible GLP pin-type printer is sold separately.
The included 2401T-F electrode covers 0–200 mS/cm, which is more than adequate for cannabis nutrient solutions (which typically run 1–4 mS/cm in veg and up to 6 mS/cm late flower). The meter also accepts the optional 2310T-F electrode for measurements up to 2000 mS/cm, and the DJS-0.1-F for high-purity RO/DI source-water verification.
The TestBench is an integrated workstation — not just an electrode stand. It combines a flexible electrode holder (positions both the pH and EC electrodes), an intelligent magnetic stirrer (ensures sample homogeneity during measurement), and buffer organizers that keep calibration standards accessible and labeled at the bench. For a facility running multiple daily calibrations and measurements across shifts, this consolidation reduces setup time and calibration errors.
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