High Precision Benchtop pH Meter Kit

What It Is

The Apera PH820 is a full-featured precision benchtop pH meter designed for laboratory and production environments that require certified-grade accuracy. The kit ships with the Swiss LabSen® 211 combination pH electrode — built with impact-resistant, bubble-free sensor tip geometry and a long-life reference system — plus a dedicated MP500 temperature probe, electrode arm, calibration buffer solutions, and AC power adapter. Everything needed to run accurate pH measurements out of the box is included.

At ±0.002 pH ±1 digit, the PH820 sits at the top tier of commercial benchtop meters. It reads pH and temperature simultaneously on a large backlit LCD, with on-screen icons that confirm reading stability and calibration status. An ORP (redox/mV) measurement mode is also available when an ORP electrode is connected, making the meter a long-term-viable platform as your testing needs expand.

Who It's Built For

Licensed cannabis and hemp operators running coco, rockwool, or recirculating hydro systems deal with tight pH windows — typically 5.5–6.2 — where a drift of 0.1 units can lock out specific nutrients. A pocket pen tester is fine for a quick spot-check in the field, but a stationary benchtop unit with a certified electrode is the right tool for mixing-room nutrient prep, incoming water quality checks, and any QC documentation your compliance program requires.

The PH820 is equally appropriate for tissue culture labs, propagation rooms, and post-harvest water-activity work where precise, logged data matters. The 500-group GLP data storage with date/time stamps and USB output means measurements can be exported directly to a spreadsheet or compliance record — no manual transcription, no guessing what time a reading was taken.

Key Features for Commercial Use

The LabSen® 211 electrode is made with Swiss sensor technology and materials. Its impact-resistant, bubble-free sensor tip reduces the air-bubble interference that causes erratic readings in busy production environments. The long-life reference system maintains a stable junction, and the electrode is compatible with TRIS buffer — relevant for operators running specialized biological assays or advanced nutrient programs.

Calibration runs up to 5 points using the industry-standard buffer values (7.00, 4.01, 10.01, 1.68, 12.45). The meter's smart self-diagnosis function actively monitors electrode slope between calibrations and flags declining electrode health before it starts costing you measurement accuracy. Calibration reminder prompts prevent the common commercial-facility problem of running on an outdated calibration without realizing it.

The IP54-rated housing resists dust and water splash — a practical consideration in grow environments where humidity is high and spills happen. Rear-panel ports include pH/mV, REF, TEMP, RS232, and DC 9V input, giving integration flexibility if the meter feeds into a broader data system.

How It Fits Into a Commercial Grow Build

Position the PH820 at a dedicated mixing station or QC bench. Use it as the reference standard against which pocket testers in the facility are cross-checked and calibrated. The GLP data log lets you demonstrate pH of every nutrient batch prepared — documentation that supports both internal SOPs and third-party audits.

Apera's 820 platform is also scalable: if you later need to add conductivity or EC measurement alongside pH, the PC820 model uses the same electrode ecosystem and data architecture. The PH820 itself adds ORP measurement capability with a separately sourced ORP electrode — useful for facilities monitoring disinfection efficacy in recirculating water systems. Apera products are manufactured under an ISO 9001:2015 certified quality system.