ADWA AD111 bridges the gap between a pocket tester and a full bench meter. It delivers bench-level accuracy (±0.01 pH) in a portable, waterproof housing — making it ideal for professionals who move between field sites and the laboratory.  Specs: pH 0.00–14.00 (±0.01), ORP ±999 mV (±1 mV), temperature -5 to 110°C (±0.3°C), IP67 waterproof, 3-point auto-calibration, GLP compliance, 500-sample datalogger with date/time, USB output, replaceable electrode, large backlit display.  Applications: Environmental field inspectors testing rivers, canals, and wastewater in Egypt, water treatment plant operators doing in-process monitoring, agricultural irrigation water quality checks, mobile laboratory services visiting client sites.  The AD111’s IP67 waterproof rating makes it genuinely field-deployable — it can be rinsed under running water without damage. The 500-sample datalogger eliminates manual note-taking extended field surveys.  Order from Eagle Systems. Ideal for field kit pairing with ADWA portable conductivity meter (AD310) — ask about bundle pricing on 01015880830..

ADWA AD111 Professional Portable pH, ORP & Temperature Meter — Field and Lab Ready

Full Technical Specifications

How to Use the ADWA AD111 — Quick Guide

Taking a pH measurement:

1. Remove the electrode tip protector and rinse with distilled water.
2. Press MODE to select pH mode.
3. Submerge the electrode in the sample — avoid air bubbles.
4. Wait for the HOLD indicator to appear (stable reading).
5. Record the displayed pH value.

Calibrating the pH electrode:

1. Prepare a fresh pH 7.01 buffer solution.
2. Submerge the electrode and press CAL.
3. The meter auto-recognises the buffer and adjusts — confirm with ENTER.
4. For 2-point calibration, repeat with pH 4.01 or pH 10.01 buffer.

Taking an ORP (mV) measurement:

1. Press MODE to switch to mV/ORP mode.
2. Submerge the electrode (ORP-capable electrode required).
3. Allow the reading to stabilise — use HOLD to freeze.

Tip: Always rinse the electrode with distilled or deionised water between samples to prevent cross-contamination.

Frequently Asked Questions (FAQ)

Q: Can the AD111 measure saltwater or seawater? A: Yes. The wide pH range of −2.00 to 16.00 accommodates saline, alkaline, and acidic solutions, including seawater, industrial effluents, and chemical process waters.

Q: How often should I calibrate the AD111? A: For general use, calibrate before each measurement session or at a minimum daily. In critical applications (pharmaceutical, food QC), calibrate with each use. Always use fresh, unexpired calibration buffers.

Q: Can I replace the pH electrode? A: Yes. The AD111 uses a standard BNC connector — the AD1230B replacement electrode is available from Eagle Systems. Other ADWA-compatible BNC electrodes also work.

Q: What is ORP / Redox potential and why does it matter? A: ORP (Oxidation-Reduction Potential) measures the ability of a solution to oxidise or reduce substances. In water treatment, ORP directly indicates the effectiveness of disinfectants such as chlorine and ozone. A positive ORP indicates oxidising conditions; a negative ORP indicates reducing conditions.

Q: Is the AD111 waterproof? A: The AD111 is splash-resistant but not fully waterproof/submersible. Avoid submerging the main unit. The electrode and temperature probe are designed for immersion in liquid samples.

Q: Does Eagle Systems offer calibration services for the AD111? A: Yes. Eagle Systems provides calibration verification services and can supply certified NIST-traceable calibration buffers for critical applications. Contact us for details.

Q: What is the warranty on the ADWA AD111? A: The AD111 carries a 1-year manufacturer warranty against manufacturing defects. Eagle Systems handles all warranty claims in Egypt — you do not need to contact the manufacturer directly.

Q: Is the ADWA AD111 suitable for use in Egypt’s climate? A: Yes. The operating temperature range of −5°C to 105°C and the automatic temperature compensation make the AD111 fully suitable for Egypt’s high-temperature environments in both laboratory and outdoor field conditions.

Why Buy from Eagle Systems?

Eagle Systems for Supplies is the authorised distributor of ADWA Instruments in Egypt, serving laboratories, hospitals, water treatment plants, universities, and industrial facilities across the country.

• Genuine ADWA products — not grey imports or counterfeits
• Same-day dispatch from October City, Giza
• After-sales support — calibration assistance, electrode replacement, technical guidance
• Invoice and documentation — official commercial invoice for institutional procurement
• WhatsApp support — 01015880830
• Full ADWA range — meters, electrodes, buffers, probes and accessories in stock{  “@context”: “https://schema.org/”,   “@type”: “Product”,   “name”: “ADWA AD111 ProfessionalPortable pH ORP Temperature Meter”,  “description”: “Professional portable pH, ORP andtemperature meter. IP67 waterproof, ±0.01 accuracy, 500-sample datalogger, GLPcompliant, USB output.”,  “brand”: { “@type”: “Brand”, “name”:

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