Design features

• Fast easy to read results with large digital dual LCD readout.
• Extreme accuracy to ±0.05 pH, EC / TDS 2% Full Scale and Temperature ±0.5 C / ±1 F.
• Range 0.00 – 14.00 pH | EC 0 to 3999 uS/cm | TDS 0 - 2000 ppm | Temperature: 0.0 to 50.0 C / 32.0 to 122.0 F.
• Lightweight and portable at just 3.5 ounces.
• Easy measurement: just place the probe in the sample, gently stir, wait for the stability indication to show a stable reading and then freeze the reading.
• Simple push button, automatic 1 or 2 point pH calibration with 5 saved calibration points and simple 1 point EC calibration.
• Gel-filled, double junction pH electrode for low maintenance and high performance with exposed temp. sensor for fast readings.
• Auto shut off after 8 minutes of non-use.
• Mi60P Replaceable pH electrode.
• Fully waterproof to IP65.
• Battery life approx. 100 hour of continuous use (batteries included).

Care and Use

The MW803 PRO Tester includes both a pH and EC electrode. Both need maintenance.

All pH sensors have a limited life and response time gets longer with age. Properly maintaining your pH pen tester will give you fast, accurate results for longer. So, be sure to order the Milwaukee pH Maintenance Kit code PH-Main at checkout time!  This will be needed to help clean and condition the pH electrode before use!

EC sensors are more robust but can still be affected by residue build up.

Store the pH probe in storage solution MA9015.  Only use tap water short-term if MA9015 is not immediately available and NEVER store in distilled Water (DI) or Reverse Osmosis (RO) water. This will damage the sensitivity of the probe.

Here are our top four tips.

1. Always store upright with the cap full of MA9015 Storage solution for BEST RESULTS.
2. Clean your Tester regularly by soaking in cleaning solution MA9016. Cleaning Solution for about 20 minutes.
3. Calibrate after cleaning and/or storage before testing to adjust for changes in the pH sensor.
4. Gently stir the Tester in the sample for a faster result.

Thank you for considering Milwaukee to help you take your results to the next level.

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