Ohaus Pen Meter ST20M-C Model # 30393200

Accurate Electrochemistry Measurement At Your Fingertips

• Starter pen meters provide what should be expected of a small pen meters: simple, fast, straightforward, no-frills yet highly accurate operation time and time again.
• With durable plastic housing, a protective cap that safeguards the sensor and an automatic shutdown feature to preserve battery life, the Starter pen meters can endure consistent use in rugged environments.
• Equipped with a wrist strap that helps to prevent unintentional dropping, Starter pen meters are constructed with an IP67 waterproof design that can prevent water damage when accidentally dropped into liquid.

Product Specifications

Meter Type	Conductivity;  pH;  Salinity
Measurement Range	0.0 – 99.0 °C;  0.00 – 14 pH;  0.00 – 19.99 ms/cm;  0.0 – 10.0 ppt
Accuracy	± 0.05 pH / ± 0.5 °C;  ±2.0 % F.S.
Measurement Resolution	0.01 pH;  0.01ms/cm;  0.1 ppt;  0.1 °C
ATC	Yes
Temperature Compensation	Not Applicable
Automatic Shutdown	Yes, After 6 minutes of non-use
Battery Life	100 Hours with Disposable Batteries
Calibration	3 Point
Conductivity accuracy (±)	2 %
Conductivity measuring range	0.00 – 19.99 mS/cm
Dimensions (LxHxW)	7.28 in x 1.5 in x 1.77 in (185 mm x 38 mm x 45 mm)
Net Weight	3.88 oz (110 g)
Number of Buttons	3
pH accuracy (±)	0.05
pH measuring range	0
Power	4 AG13 Batteries (Included)
Protection Rating	IP67
Temperature Display	Yes
Temperature Sensor	50 KΩ NTC
Working Environment	50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85%RH, non-condensing)
Wrist Strap	Yes

 

This product ships directly from Ohaus, ensuring fast delivery, proper handling, and factory-fresh quality. When you purchase Ohaus, you’re backed by one of the most trusted names in laboratory equipment — known worldwide for precision, reliability, and exceptional support. Shop with confidence knowing your order is fulfilled by the manufacturer themselves

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