Value Series Benchtop pH/Cond./TDS Meter Kit

What the PC910 Is

The Apera PC910 is a dual-channel benchtop meter purpose-built for simultaneous pH and conductivity measurement. Where a handheld pen tester gives you a single number per dip, the PC910 runs both channels at once — pH on one side of the display, EC/TDS/salinity on the other — so every bench test produces a complete water-chemistry snapshot in one step.

The unit ships as a complete kit: the LabSen 211 refillable glass pH combination electrode, the 2301T-F platinum-black ATC conductivity electrode (K=1.0), an MP500 temperature probe, a flexible electrode holder arm, and calibration solutions. Everything required to run calibrated, GLP-traceable measurements is included in the box.

The PC910 is positioned in Apera's 910 Series — their entry point into dedicated benchtop instrumentation — and carries a 3-year manufacturer's warranty on the meter body and 6 months on the electrodes, which is consistent with lab-grade instrument expectations.

Who This Meter Is For

Commercial cannabis and hemp cultivators running recirculating systems, fertigation lines, or hand-watering programs need a reference point they can trust at the bench, separate from inline sensors. The PC910 fills that role. It is the instrument you pull out to verify your dosing solution before it goes to the plants, to cross-check an inline EC probe you suspect has drifted, or to qualify a new batch of coco buffer or RO water.

Compliance operations and licensed producers who document cultivation inputs will find the 200-group manual data logger and USB output useful for maintaining water-chemistry records without manual transcription. The multi-language interface — English, German, Spanish, and Mandarin — covers most multilingual cultivation teams without needing to swap units.

Tissue-culture labs, propagation rooms, and IPM departments that handle a range of solution types also benefit from the PC910's wide EC range (0–200 mS/cm), which handles everything from low-conductivity RO water and delicate propagation feeds to concentrated stock solutions without requiring a range switch.

Key Measurement and Calibration Features

pH accuracy is ±0.01 pH with a resolution of 0.01 pH across a 0.00–14.00 pH range. The meter performs 1–3 point auto calibration on the pH channel, automatically recognizing standard buffer solutions at 1.68, 4.00, 7.00, 10.01, and 12.45 pH across USA, NIST, and China buffer series, with a custom option for non-standard buffers. After the second and third calibration points, the electrode slope is automatically displayed on the LCD so you can assess whether the LabSen 211 electrode is still performing within spec before you record any results.

On the conductivity side, the 2301T-F BPB (brush-resistant platinum black) electrode delivers 0–200 mS/cm range with ±1% F.S. accuracy and automatic temperature compensation from 0–100°C. The meter auto-recognizes conductivity standard solutions at 84 µS/cm, 1413 µS/cm, 12.88 mS/cm, and 111.8 mS/cm and supports 1–4 point conductivity calibration. EC, TDS, and salinity modes switch with a single keypress from the same electrode.

The stability indicator — a smiley-face icon that appears when the reading is settled — removes the guesswork on when to record a value. An auto-lock mode latches the reading automatically once the signal is stable, which reduces operator-to-operator variation in recorded results. The self-diagnosis function actively checks calibration integrity and alerts you if a calibration step fails to complete correctly.

How It Fits a Commercial Grow Build-Out

In a production facility, the PC910 typically lives at the fertigation station or prep bench. It is not a pocket tester or a replacement for inline monitoring — it is the verification standard those inline sensors get checked against. Calibrate it weekly against fresh buffer, log the results via USB, and you have a defensible paper trail showing that your water-chemistry monitoring program uses a traceable reference.

The dual-channel display means a grower or cultivation technician can confirm both EC and pH in a single dip rather than swapping instruments between parameters. Over the course of a work shift involving multiple reservoirs or solution batches, that efficiency compounds. The 200-group onboard data logger means readings can be logged across an entire day's batch checks before offloading to a PC, rather than requiring a laptop or tablet at the bench for every test.

The LabSen 211 refillable glass pH electrode is designed for long service life with proper maintenance — refillable reference electrolyte and a junction system engineered to resist clogging. Replacement electrodes and calibration solutions are available separately, so ongoing consumable costs are straightforward to budget.