Milwaukee – MA918B/1 Refillable Combination pH Probe

In stock

RANGE: 0 – 12 pH


The MA918B/1 is a lab grade refillable glass electrode with a conic tip designed for fast accurate measurements in all applications.


The MA918B/1 probe makes pH testing easy and fast.

Top features include:


The triple reference design reduces risk of clogging with the reference cell physically separated from the intermediate electrolyte.


The MA918B/1 is refillable with MA9011 3.5M KCl AgCl electrolyte. This solution is sliver free. Sliver can cause silver precipitate to form at the junction resulting in clogging. Clogging causes erratic and slow readings. The ability to refill the electrolyte also extends the life of the electrode.


The glass body is easily cleaned and resistant to chemicals.


The conic design of the tip provides the largest possible surface area for faster readings and is well suited for testing in many applications.


Properly maintaining your pH probe will give you fast, accurate results for longer.

Here are our top four tips.

1. Always store with the cap full of buffer or storage solution not water.

2. Clean your probe regularly by soaking in cleaning solution.

3. Calibrate after cleaning and/or storage before testing to adjust for changes in the pH probe sensor.

4. Gently stir the probe in the sample for a faster result.


Body: Glass

Reference: Single, Ag/AgCl

Junction: Ceramic, triple

Electrolyte: 3.5M KCl AgCl

Range: 0-12 pH

Tip Shape: Conic

Diameter: 0.5 inches

Dimensions: 4.7 inches / 6.4 inches

Operating Temperature: 23 to 86°F)

Cable length: 3.3 feet

Connection: BNC

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