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Ohaus Pen Meter ST10T-A Handheld TDS Meter with IP67 Waterproof Rating

UsedOhausElectrochemistryUnited States

From€267.13excl. VAT

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Meter Type
TDS
Measurement Range
0.0 – 100.0 mg/L
Accuracy
±2.5% FS
Measurement Resolution
0.1 mg/L
Display
LCD
All 21 specifications
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Specifications 21

Brands
Ohaus
New/Used
Used
Meter Type
TDS
Measurement Range
0.0 – 100.0 mg/L
Accuracy
±2.5% FS
Measurement Resolution
0.1 mg/L
Display
LCD
ATC
Not Applicable
Temperature Compensation
Not Applicable
Automatic Shutdown
Yes, After 6 minutes of non-use
Battery Life
200 Hours with Disposable Batteries
Conductivity accuracy (±)
2.5 %
Conductivity measuring range
0.0 – 100.0 mg/L
Dimensions (HxLxW)
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
1
Power
4 AG13 Batteries (Included)
Protection Rating
IP67
Temperature Display
Not Applicable
Working Environment
50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85%RH, non-condensing)
Wrist Strap
Yes

Product description

Portable TDS pen meter with 0–100 mg/L range, ±2.5% accuracy, IP67 waterproof, 200-hour battery life.

Ohaus Pen Meter ST10T-A Model #30073978

  • Meter Type: TDS (Total Dissolved Solids) measurement
  • Measurement Range: 0.0 – 100.0 mg/L
  • Accuracy: ±2.5% Full Scale (FS)
  • Resolution: 0.1 mg/L
  • Display: LCD
  • Temperature Compensation: Not Applicable
  • Automatic Shutdown: Enabled after 6 minutes of inactivity to preserve battery
  • Battery: Powered by 4 AG13 disposable batteries (included), providing approximately 200 hours of operation
  • Conductivity Accuracy: ±2.5%
  • Physical 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)
  • Number of Buttons: 1
  • Protection Rating: IP67 waterproof standard
  • Operating Environment: 50°F–104°F (10°C–40°C), 85% relative humidity non-condensing
  • Additional Features:
  • Durable plastic housing with protective sensor cap
  • Wrist strap to prevent accidental dropping
  • Simple, fast, and straightforward operation suitable for rugged environments

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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 7 November 2026