Part of HORIBA's LAQUA 2000 Series benchtop water quality meters. The PH2000 is a pH/ORP/Temperature bench meter with a sleek, compact design, 5" digital backlit display, and 3-year warranty — built for everyday laboratory pH measurement. This IN-S variant stores only a single calibration data set (no multi-set data logging memory).




The LAQUA PH2000 is a pH/ORP/Temperature benchtop meter from HORIBA's LAQUA 2000 Series. It combines a sleek, elegant, rounded body with a smaller footprint — ideal for both large and small-scale labs — and a 5" custom digital LCD with backlight showing all readings and status icons at a glance. Meter kits come ready to use out of the box, complete with electrode and calibration solutions, and are backed by a 3-year warranty. The PH2000IN-S variant covered on this page stores only a single calibration data set (no multi-point data logging memory) — see the "With Memory" PH2000 page for the full 2000-data-set version.
Everyday benchtop pH and ORP measurement for QA/QC, teaching, and research laboratories.
Routine water quality checks across process, environmental, medical, and semiconductor applications.
Date/time-stamped, printable readings support Good Laboratory/Manufacturing Practice documentation needs.
| Model | LAQUA PH2000 — pH/ORP/Temp (°C/°F) Bench Meter |
|---|---|
| pH Range / Resolution | -2.000 to 20.000 pH / 0.1, 0.01, 0.001 pH |
| pH Accuracy | ± 0.003 pH |
| pH Buffer Groups | USA, NIST, NIST2, DIN, Custom |
| pH Calibration Points | Up to 5 (USA, NIST, NIST2) / Up to 6 (DIN, Custom) |
| ORP Range / Resolution | ± 2000.0 mV / 0.1 mV |
| ORP Accuracy | ± 0.2 mV (calibration option up to ± 200 mV) |
| Temperature Range | -30.0 to 130.0 °C / -22.0 to 266.0 °F (± 0.5 °C / ± 0.9 °F accuracy) |
| Memory | — (single calibration data set only; see With Memory variant for 2000-set logging) |
| Measurement Modes | Auto Stable / Auto Hold / Real Time |
| Calibration Alarm / Auto Shut-Off | Programmable up to 90 days / up to 30 mins |
| PC / Printer Communication | Phono jack (USB / RS232C) |
| Meter Inputs | BNC, phono (ATC), DC sockets |
| Display | 5" Custom LCD with backlight and 320 segments |
| Power Requirement | AC adaptor 100–240V, 50–60Hz |
| Dimensions / Weight | 155(L) x 150(W) x 67(H) mm, 765g |
Meter with integrated electrode stand, universal power adaptor (6 plugs) and manual.
PH2000 + 9615S-10D refillable, glass-body pH electrode with built-in temperature sensor + 502-S USA pH buffers kit.
PH2000 + 9615S-10D refillable, glass-body pH electrode with built-in temperature sensor + 501-S NIST pH buffers kit.
General laboratory application. pH 0-14, 0-100 °C, ceramic liquid junction.
High viscosity samples. pH 0-14, 0-60 °C, movable sleeve junction.
For precious/trace-amount samples. pH 0-14, 0-60 °C, ceramic junction.
501-S NIST kit, 502-S USA kit, individual pH 1.68–12.46 buffers, 3.33M KCl electrode filling solution, and pH electrode cleaning solutions (220/230/250).
Holds up to 2 electrodes; adjustable, sold separately for the LAQUA 2000 Series (Part No. 3200861022).
120V/230V printer with paper, printer cable (phono to 25-pin D-sub), and PC cable (phono to USB) for DAS20 data logging software.