MAX 4-in-1 (pH, EC, TDS, Temperature) Waterproof Testers with ATC
Manufacturer: Milwaukee Instruments
Description
The Milwaukee MW803 and MW804 MAX Waterproof 4-in-1 pH/EC/TDS/Temp Testers deliver all-in-one water quality measurement for growers in a lightweight 3.5-ounce IP65-rated design. Both testers measure pH, electrical conductivity (EC), total dissolved solids (TDS), and temperature using a single integrated probe with an exposed temperature sensor positioned close to the pH probe for fast automatic temperature compensation. The MW803 is optimized for low EC range applications, while the MW804 extends into high EC ranges for more concentrated nutrient solutions. Both feature gel-filled double junction replaceable electrodes, automatic calibration with 5 saved calibration points, dual-level LCD displays with stability indicators, and auto shut-off.
Features:
- MW803: Low range 4-in-1 pH/EC/TDS/Temp tester; range 0.00-14.00 pH, 0-3999 µS/cm EC, 0-2000 ppm TDS, 0.0-50.0°C; accuracy ±0.05 pH, ±2% full scale EC/TDS, ±0.5°C; EC calibration with MA9061 1413 µS/cm
- MW804: High range 4-in-1 pH/EC/TDS/Temp tester; same pH and temperature range as MW803; extended EC range to 20.00 mS/cm and TDS to 10.00 ppt; accuracy ±0.05 pH, ±2% full scale EC/TDS, ±0.5°C; EC calibration with MA9060 12,880 µS/cm
- Both models include gel-filled double junction pH electrodes with exposed temperature sensors for fast ATC response
- Automatic 1 or 2-point pH calibration with 5 saved calibration points; single-point EC calibration on both models
- Replaceable MI60P pH electrode on both models for extended tester life
- Fully waterproof to IP65 with rugged construction designed for daily field use
- Automatic Temperature Compensation (ATC) on both models
- Large dual-level LCD display with stability indicator and hold function
- Lightweight and portable at just 3.5 ounces — up to half the weight of comparable testers
- Auto shut-off after 8 minutes of non-use; approximately 100 hours of continuous battery life (batteries included)
- Store pH probe upright in storage solution MA9015; never store in distilled or RO water; clean regularly with MA9016 cleaning solution; calibrate after cleaning or storage
| SKU | pH Accuracy | Resolution | Conductivity Accuracy | Temperature Range | Temperature Accuracy | Temperature Resolution | Temperature Compensation | Type |
|---|---|---|---|---|---|---|---|---|
| MW804 | ±0.05 pH | 0.01 pH | 2% Full Scale | 0 to 50°C | ±0.5°C | 0.1°C | Automatic, with β=0 to 2.4%/°C | pH/EC/TDS/Temp |
| MW803 | ±0.05 pH | 0.01 pH | 2% Full Scale | 0 to 50°C | ±0.5°C | 0.1°C | Automatic, with β=0 to 2.4%/°C | pH/EC/TDS/Temp |
|
MAX 4-in-1 (pH, EC, TDS, Temperature) Waterproof Tester with ATC Product Manual | Download |
| SKU | Calibration | Working Environment | Battery | Typical Battery Life | Dimensions |
|---|---|---|---|---|---|
| MW804 | Automatic, 1 point for EC and 1 or 2 points for pH | 0 to 50°C; max RH 100% | 4 x 1.5V; IEC LR44, A76 (included) | 100 hours | 7.9 in x 1.5 in (Diameter) |
| MW803 | Automatic, 1 point for EC and 1 or 2 points for pH | 0 to 50°C; max RH 100% | 4 x 1.5V; IEC LR44, A76 (included) | 100 hours | 7.9 in x 1.5 in (Diameter) |
Starting at $219.65
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