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Ohaus Pen Meter ST20C-B Portable Conductivity and Temperature Meter

UsedOhausElectrochemistryUnited States

€141.54excl. VAT

In stock

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Meter Type
Conductivity
Measurement Range
0 – 1999 μs/cm; 0.0 – 99.0 °C
Accuracy
±0.1 pH
Measurement Resolution
1μs/cm
Display
LCD
All 26 specifications
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Specifications 26

Brands
Ohaus
New/Used
Used
Meter Type
Conductivity
Measurement Range
0 – 1999 μs/cm; 0.0 – 99.0 °C
Accuracy
±0.1 pH
Measurement Resolution
1μs/cm
Display
LCD
ATC
Yes
Temperature Compensation
Automatic
Accuracy ± (Temperature)
0.5 °C
Automatic Shutdown
Yes, After 6 minutes of non-use
Battery Life
200 Hours with Disposable Batteries
Calibration
1 Point
Conductivity accuracy (±)
1.5 %
Conductivity measuring range
0 – 1999 µS/cm
Dimensions (HxLxW)
7.28 in x 1.5 in x 1.77 in (185 mm x 38 mm x 45 mm)
Measurement Range (Temperature)
0 °C – 99 °C
Net Weight
3.88 oz (110 g)
Number of Buttons
3
Power
4 AG13 Batteries (Included)
Protection Rating
IP67
Temperature Display
Yes
Temperature Range
0 °C – 99 °C
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

Product description

Portable pen meter measuring conductivity 0–1999 µS/cm and temperature 0–99°C, with IP67 waterproof rating.

Ohaus Pen Meter ST20C-B Model #30073976

  • Meter Type: Conductivity
  • Conductivity Measurement Range: 0 – 1999 µS/cm
  • Conductivity Accuracy: ±1.5%
  • Measurement Resolution: 1 µS/cm
  • Temperature Measurement Range: 0 – 99 °C
  • Temperature Accuracy: ±0.5 °C
  • Temperature Sensor: 50 KΩ NTC
  • Temperature Compensation: Automatic (ATC)
  • Calibration: 1 point
  • Display: LCD with temperature display
  • Power: 4 AG13 batteries included, approx. 200 hours battery life
  • Automatic Shutdown: Enabled after 6 minutes of non-use to conserve battery
  • Dimensions: 7.28 in x 1.5 in x 1.77 in (185 mm x 38 mm x 45 mm)
  • Weight: 3.88 oz (110 g)
  • Protection Rating: IP67 waterproof and dustproof design
  • Housing: Durable plastic with protective sensor cap
  • Additional Features: Wrist strap included to prevent accidental drops
  • Working Environment: 10°C – 40°C (50°F – 104°F), 85% relative humidity, non-condensing

This pen-style meter offers simple, fast, and accurate conductivity and temperature measurements for field or laboratory use, with durability suited for rugged conditions.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 22 October 2026