Milwaukee MW804 MAX Waterproof 4-in-1 pH/EC/TDS/Temp Tester with Replaceable Probe

Professional-Grade 4-in-1 Tester for pH, EC, TDS & Temperature — Now with Replaceable Probe

The Milwaukee MW804 MAX Waterproof 4-in-1 pH/EC/TDS/Temperature Tester is a high-performance, all-in-one digital meter built for serious growers. Whether you're managing a hydroponic system, aquaponics, or greenhouse operation, this tester gives you fast, reliable results with pinpoint accuracy—right in the palm of your hand.

With automatic temperature compensation, a replaceable double-junction pH probe, and dual-level LCD display, the MW804 MAX delivers comprehensive water quality data in seconds. Fully waterproof (IP65 rated) and lightweight, this tester is designed to perform in rugged grow environments while maintaining user-friendly operation.

Key Features:

• 4-in-1 Digital Meter: Measures pH, EC, TDS, and Temperature

• Wide Measurement Ranges:

  • pH: 0.00–14.00

  • EC: Up to 20.00 mS/cm

  • TDS: Up to 10.00 ppt

  • Temp: 32.0–122.0°F (0.0–50.0°C)

• High Accuracy: ±0.05 pH, ±2% EC/TDS, ±0.5°C

• Replaceable Double-Junction pH Electrode (Mi60P)

• Automatic Calibration: One or two points with 5 stored calibration values

• Large Dual-Level LCD Display with stability indicator and hold function

• Waterproof IP65 Construction for wet environments

• Lightweight: Just 3.5 ounces

• Battery Life: 100+ hours of continuous use (batteries included)

• Auto Shut-Off to conserve power

Care & Maintenance Tips:

• Store pH probe upright in MA9015 storage solution

• Clean regularly with MA9016 cleaning solution

• Avoid storing in RO or distilled water

• Calibrate after storage or cleaning for best results

• Use MA9060 or M10030B for EC calibration

• Consider the Milwaukee PH-Main Maintenance Kit for long-term accuracy and performance

• Milwaukee MW804 User Manual

Why Choose the MW804 MAX?
This advanced digital tester is perfect for professional growers who demand precision, durability, and ease of use. With a rugged design, replaceable components, and trusted Milwaukee accuracy, it’s the tool you can rely on throughout your grow cycle.