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OHAUS ST20 pH Pen Meter 0.01pH


$73.95


Model: 13129
Shipping Weight: 0.7lbs

Convenient and economical pH testing. A simple-to-use pH pen meter offers fast and accurate results. 0-14pH range, 0.01pH readability. Displays temperature 0.0 – 99.0 °C.

Ohaus ST20 Pocket pH Pen

  • Starter pen meters provide what should be expected of a small, economical pen meter: simple, fast, straightforward, no-frills operation time and time again.

  • With durable ABS housing, a protective sensor cap, and automatic shutdown feature that preserves battery life, Starter pen meters can endure consistent use in rugged environments.

  • Equipped with a wrist strap that helps prevent unintentional dropping, Starter pen meters are constructed with an IP67 waterproof design that can prevent water damage when dropped in to liquid.

Product Specifications

Measurement Range 0.00 – 14 pH;
0.0 – 99.0 °C
Measurement Resolution 0.01 pH
Calibration 3 Point
Temperature Compensation Automatic
Display LCD
Working Environment 50°F – 104°F, 85%RH, non-condensing
Working Environment 10°C – 40°C, 85%RH, non-condensing
Net Weight 110.0 g (3.88 oz)
ATC Yes
Temperature Display Yes
Accuracy ± 0.05 pH / ± 0.5 °C
Accuracy ± (Temperature) 0.5 °C
Temperature Range 0 °C – 99 °C
Meter Type pH
Measurement Range (Temperature) 0 °C – 99 °C
Power 4 AG13 Batteries (Included)
Wrist Strap Yes
Temperature Sensor 50 KO NTC
pH accuracy (±) 0.05
pH measuring range 0 – 14
Dimensions (Height) 185.0 mm (7.28 in)
Automatic Shutdown Yes, After 6 minutes of non-use
Protection Rating IP67
Number of Buttons 3
Battery Life 200 Hours with Disposable Batteries
Dimensions (Length) 38.0 mm (1.5 in)
Dimensions (Width) 45.0 mm (1.77 in)

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