Milwaukee pH51 Waterproof pH Tester with Replaceable Probe

Instructions for use here *. Video with calibration instructions here * .

The set includes:

• 1x calibration solution pH 7.01 - 20ml
• 1x calibration solution pH 4.01 - 20ml
• 1x calibration screwdriver

Main features:

• measuring range: 0.0 - 14.0 pH
• resolution: 0.1 pH
• measurement accuracy: ± 0.1 pH
• easy manual 1-point or 2-point calibration .
• built-in electrode: MA73600 ( replaceable )
• Operating environment: 0 - 50°C ; max. RH (relative humidity) 100%
• batteries: 3x 1.5V , IEC LR44 , A76 ( included )
• Battery life: over 1500 hours of continuous use
• batteries: included
• dimensions: 16.5 cm , ⌀ 3 cm
• weight: 99 g
• Device warranty: 1 year
• electrode warranty: 6 months

Calibration:

1. Unscrew the battery compartment cap on the top of the meter and perform the following two-point calibration procedure:
2. Immerse the electrode in pH 7.01 calibration buffer solution .
3. Allow the readings to stabilize and using a small screwdriver, turn the calibration trimmer “ 7 ” in the battery compartment until the display shows “ 7.0 ”.
4. Rinse the electrode with tap water and immerse it in pH 4.01 calibration buffer solution .
5. Allow the readings to stabilize and using a small screwdriver, turn the calibration trimmer “ 4 ” until the display shows “ 4.0 ”.

Proper maintenance of your probe will give you fast and accurate results for longer. Here are our four top tips.

1. Always store with a cap filled with buffer or MA9015 storage solution , not water .
2. Clean your probe regularly by soaking it in MA9016 cleaning solution .
3. Calibrate after cleaning and/or storage before testing to correct for changes in the pH and EC sensor.
4. Gently mix the probe into the sample for a faster result.