Ohaus Starter Pen Meters
When you are looking for accurate results anywhere and anytime, look no further than the OHAUS Starter Series of pH pen meters designed for education.
- Wrist strap prevents unintentional dropping
- Waterproof design
- Protective cap
- Easily replaceable electrodes
- Automatic shut off feature
- Aligned with GLOBE protocols
They're simple, fast, and straightforward.
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.
When you are looking for accurate results anywhere and anytime, look no further than the OHAUS Starter Series of pH pen meters designed for education.
- Wrist strap prevents unintentional dropping
- Waterproof design
- Protective cap
- Easily replaceable electrodes
- Automatic shut off feature
- Aligned with GLOBE protocols
They're simple, fast, and straightforward.
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.
- Catalog No:
- 470020-230
- 470020-232
- 470020-280
- 470020-308
- Model:
- ST10
- ST20
- ST20
- ST10
- pH range:
- 0 - 14
- 0 - 14
- 0 - 14
- 0 - 14
- pH resolution:
- 0.1
- 0.01
- 0.01
- 0.1
- pH accuracy:
- ±0.1
- ±0.05
- ±0.05
- ±0.1
- pH calibration:
- -
- 3-Point
- 3-Point
- -
- mV range:
- -
- -
- -
- -
- mV resolution:
- -
- -
- -
- -
- mV accuracy:
- -
- -
- -
- -
- Temperature range:
- -
- 0...99 °C
- 0...99 °C
- -
- Temperature accuracy:
- -
- ±0.5 °C
- ±0.5 °C
- -
- Temperature compensation:
- No
- Automatic
- Automatic
- No
- Display:
- LCD
- LCD
- LCD
- LCD
- Battery life:
- 200 hours with disposable batteries
- 200 hours with disposable batteries
- 200 hours with disposable batteries
- 200 hours with disposable batteries
- IP rating:
- IP 67
- IP 67
- IP 67
- IP 67
- Dimensions:
- 38L×185H×45W mm (1.5×7.28×1.77")
- 38L×185H×45W mm (1.5×7.28×1.77")
- 38L×185H×45W mm (1.5×7.28×1.77")
- 38L×185H×45W mm (1.5×7.28×1.77")
- Weight:
- 110 g (3.88 oz.)
- 110 g (3.88 oz.)
- 110 g (3.88 oz.)
- 110 g (3.88 oz.)
Catalog No | Model | ST10 | ST20 | ST20 | ST10 | pH range | 0 - 14 | 0 - 14 | 0 - 14 | 0 - 14 | pH resolution | 0.1 | 0.01 | 0.01 | 0.1 | pH accuracy | ±0.1 | ±0.05 | ±0.05 | ±0.1 | pH calibration | - | 3-Point | 3-Point | - | mV range | - | - | - | - | mV resolution | - | - | - | - | mV accuracy | - | - | - | - | Temperature range | - | 0...99 °C | 0...99 °C | - | Temperature accuracy | - | ±0.5 °C | ±0.5 °C | - | Temperature compensation | No | Automatic | Automatic | No | Display | LCD | LCD | LCD | LCD | Battery life | 200 hours with disposable batteries | 200 hours with disposable batteries | 200 hours with disposable batteries | 200 hours with disposable batteries | IP rating | IP 67 | IP 67 | IP 67 | IP 67 | Dimensions | 38L×185H×45W mm (1.5×7.28×1.77") | 38L×185H×45W mm (1.5×7.28×1.77") | 38L×185H×45W mm (1.5×7.28×1.77") | 38L×185H×45W mm (1.5×7.28×1.77") | Weight | 110 g (3.88 oz.) | 110 g (3.88 oz.) | 110 g (3.88 oz.) | 110 g (3.88 oz.) |
|---|
Product Family Options
- 470020-230ST10: Basic pH pen meter with single display: 30073970
- 470020-232ST20: pH pen meter with 3-point calibration and automatic temperature compensation: 30073971
Accessories
- For Use With
- ST10
- For Use With
- ST20
- For Use With
- ST20C-C, ST20S

