Ohaus® Starter Pen Meters
About this item
Compact design for fast, convenient electrochemistry measurement at your fingertips.
- LCD display
- Four 1.5 V batteries (included)
- Easily replaceable electrodes
- Automatic shut-off
- Features a 3-point calibration
OHAUS® precision is now available in a line of pen meters that provide accurate measurement of pH, conductivity, salinity, and total dissolved solids (TDS). Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement without restriction.
Model ST20M-B: Conductivity Range: 0 – 1999 μs/cm; 0.0 – 99.0 °C; pH Range: 0.00 – 14 pH; TDS Range: 0.0 – 1000 mg/L;
Model ST20M-C: Conductivity Range: 0 – 1999 μs/cm; 0.0 – 99.0 °C; pH Range: 0.00 – 14 pH; Salinity Range: 0.0 – 10.0 ppt
Product Details
Compact design for fast, convenient electrochemistry measurement at your fingertips.
- LCD display
- Four 1.5 V batteries (included)
- Easily replaceable electrodes
- Automatic shut-off
- Features a 3-point calibration
OHAUS® precision is now available in a line of pen meters that provide accurate measurement of pH, conductivity, salinity, and total dissolved solids (TDS). Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement without restriction.
Model ST20M-B: Conductivity Range: 0 – 1999 μs/cm; 0.0 – 99.0 °C; pH Range: 0.00 – 14 pH; TDS Range: 0.0 – 1000 mg/L;
Model ST20M-C: Conductivity Range: 0 – 1999 μs/cm; 0.0 – 99.0 °C; pH Range: 0.00 – 14 pH; Salinity Range: 0.0 – 10.0 ppt
Documents
Documents
TDS Pen Meter Comparison Sheet
Datasheet
Specifications for Product Family
Specifications
- Catalog No:
- 470315-552
- 470315-554
- Model:
- ST20M-B
- ST20M-C
- pH Range:
- 0.00 – 14.00
- 0.00 – 14.00
- pH Resolution:
- 0.01
- 0.01
- pH Accuracy:
- ± 0.05
- ± 0.05
- Conductivity Range:
- 0 - 1999 μs/cm
- 0.00 - 19.99 ms/cm
- Conductivity Resolution:
- 1 μs/cm
- 0.01 ms/cm
- Salinity Range:
- 0.0 - 10.0 ppt
- Salinity Resolution:
- 0.1 ppt
- Salinity Accuracy:
- ±2.0 % F.S
- TDS Range:
- 0.0 - 1000 mg/L
- TDS Accuracy:
- ±2.0 % F.S
- Temperature Range:
- 0.0...99.0 °C
- 0.0...99.0 °C
- Temperature Accuracy:
- ± 0.5 °C
- Temperature Compensation:
- Automatic
- Automatic
- Display:
- LCD
- LCD
- Power supply:
- 4 AG13 Batteries (Included)
- 4 AG13 Batteries (Included)
- IP Rating:
- IP 67
- IP 67
- Calibration:
- 3-point
- 3-point
- W×D×H:
- 38×185×45 mm
- 38×185×45 mm
- Weight:
- 3.88 oz (110 g)
- 3.88 oz (110 g)
Specifications
Catalog No | Model | ST20M-B | ST20M-C | pH Range | 0.00 – 14.00 | 0.00 – 14.00 | pH Resolution | 0.01 | 0.01 | pH Accuracy | ± 0.05 | ± 0.05 | Conductivity Range | 0 - 1999 μs/cm | 0.00 - 19.99 ms/cm | Conductivity Resolution | 1 μs/cm | 0.01 ms/cm | Salinity Range | 0.0 - 10.0 ppt | Salinity Resolution | 0.1 ppt | Salinity Accuracy | ±2.0 % F.S | TDS Range | 0.0 - 1000 mg/L | TDS Accuracy | ±2.0 % F.S | Temperature Range | 0.0...99.0 °C | 0.0...99.0 °C | Temperature Accuracy | ± 0.5 °C | Temperature Compensation | Automatic | Automatic | Display | LCD | LCD | Power supply | 4 AG13 Batteries (Included) | 4 AG13 Batteries (Included) | IP Rating | IP 67 | IP 67 | Calibration | 3-point | 3-point | W×D×H | 38×185×45 mm | 38×185×45 mm | Weight | 3.88 oz (110 g) | 3.88 oz (110 g) |
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Product Family Options
Product Information
- ModelAvailabilityPrice
- 470315-552Conductivity, pH, TDS testerSupplier Number: 30393199Specifications:
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Specifications
Cat. No.470315-552ModelST20M-BpH Range0.00 – 14.00pH Resolution0.01pH Accuracy± 0.05Conductivity Range0 - 1999 μs/cmConductivity Resolution1 μs/cmSalinity RangeSalinity ResolutionSalinity AccuracyTDS Range0.0 - 1000 mg/LTDS Accuracy±2.0 % F.STemperature Range0.0...99.0 °CTemperature Accuracy± 0.5 °CTemperature CompensationAutomaticDisplayLCDPower supply4 AG13 Batteries (Included)IP RatingIP 67Calibration3-pointW×D×H38×185×45 mmWeight3.88 oz (110 g) - 470315-554Conductivity, pH, Salinity testerSupplier Number: 30393200Specifications:
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Specifications
Cat. No.470315-554ModelST20M-CpH Range0.00 – 14.00pH Resolution0.01pH Accuracy± 0.05Conductivity Range0.00 - 19.99 ms/cmConductivity Resolution0.01 ms/cmSalinity Range0.0 - 10.0 pptSalinity Resolution0.1 pptSalinity Accuracy±2.0 % F.STDS RangeTDS AccuracyTemperature Range0.0...99.0 °CTemperature AccuracyTemperature CompensationAutomaticDisplayLCDPower supply4 AG13 Batteries (Included)IP RatingIP 67Calibration3-pointW×D×H38×185×45 mmWeight3.88 oz (110 g)