Oakton Waterproof pH 150 Meter Kit with NIST Certificate

Oakton Waterproof pH 150 Meter Kit with NIST Certificate. A portable meter is built around the fact that the sample will not come to you.

The models differ by 150 and 450.

What portability actually costs

Sealing an instrument against water and dust means a smaller display, fewer connections and a battery. In exchange it survives rain, a boat, a treatment plant walkway and being dropped into what it is measuring — which is where the majority of portable meters end their lives.

Measure where the sample is

Several parameters change from the moment a sample leaves the water: chlorine decays, dissolved oxygen equilibrates with the air, carbon dioxide escapes and pH follows it, and temperature is gone immediately. A bottle carried back to a bench does not hold those numbers, so a portable instrument is not a convenience for them — it is the only way to measure them at all.

Where it is used

• field water surveys
• treatment plant rounds
• aquaculture and agriculture
• service and maintenance routes

Practical note

Carry spare batteries and fresh calibration standards in the case; a portable meter far from the laboratory is worth exactly as much as its last calibration.

Supplied in 2 models.