Overview
After more than a century of perfecting the art of measurement through our durable weighing products, OHAUS precision is now available in the form of a portable pH meter. This portable meter offers convenience, reliability and durability in one compact design.
Models
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Ohaus
SKU:
oh-83033961
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Starter 300 Ph Portable St300 Specifications |
|
---|---|
Accuracy | ±0.5 °C; ±1 mV; ±0.01 pH |
Accuracy ± (mV) | 1 mV |
Auxiliary Display Model | LCD |
Battery Life | 500 Hours with Disposable Batteries |
Internal Calibration | 3 Point |
Electrode | ST320 (Included) |
In Use Cover | No |
Measurement Range | -1,999 mV ; 1,999 mV |
Measurement Range (Temperature) | 0 °C ; 100 °C |
Measurement Resolution | 0.1 °C; 0.01 pH; 1 mV |
Net Weight | 0.35 lb (0.16 kg) |
Parameter | pH / ORP |
pH accuracy (±) | 0.01 |
pH measuring range | 0 ; 14 |
pH resolution | 0.01 |
Resolution (Voltage) | 1 mV |
Temperature Compensation | Yes |
Temperature Resolution | 0.1 °C |
Temperature Sensor | 30 KΩ NTC |
Working Environment | 41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80% RH, Non-condensing) |

Ohaus
St300-B
SKU:
oh-83033962
Femto Price: $451.00
×
Starter 300 Ph Portable St300-B Specifications |
|
---|---|
Accuracy | ±0.5 °C; ±1 mV; ±0.01 pH |
Accuracy ± (mV) | 1 mV |
Auxiliary Display Model | LCD |
Battery Life | 500 Hours with Disposable Batteries |
Internal Calibration | 3 Point |
Electrode | ST320 (Available as an accessory) |
In Use Cover | No |
Measurement Range | -1,999 mV ; 1,999 mV |
Measurement Range (Temperature) | 0 °C ; 100 °C |
Measurement Resolution | 0.1 °C; 0.01 pH; 1 mV |
Net Weight | 0.35 lb (0.16 kg) |
Parameter | pH / ORP |
pH accuracy (±) | 0.01 |
pH measuring range | 0 ; 14 |
pH resolution | 0.01 |
Resolution (Voltage) | 1 mV |
Temperature Compensation | Yes |
Temperature Resolution | 0.1 °C |
Temperature Sensor | 30 KΩ NTC |
Working Environment | 41°F – 104°F, 80% RH, Non-condensing (5°C – 40°C, 80% RH, Non-condensing) |

Ohaus
St300-G
SKU:
oh-30219114
Femto Price: $631.00
×
Starter 300 Ph Portable St300-G Specifications |
|
---|---|
Accuracy | ±0.01 pH; ±1 mV; ±0.5 °C |
Accuracy ± (mV) | 1 mV |
Accuracy (Temperature) | 0.5 °C |
Auxiliary Display Model | LCD |
Battery Life | 500 Hours with Disposable Batteries |
Internal Calibration | 3 Point |
Electrode | ST320 (Included) |
In Use Cover | No |
Measurement Range | -1,999 mV – 1,999 mV |
Measurement Range (Temperature) | 0 °C – 100 °C |
Measurement Resolution | 0.01 pH; 1 mV; 0.1 °C |
Net Weight | 0.35 lb (0.16 kg) |
Parameter | pH / ORP |
pH accuracy (±) | 0.01 |
pH measuring range | 0 – 14 |
pH resolution | 0.01 |
Resolution (Voltage) | 1 mV |
Temperature Compensation | Automatic |
Temperature Resolution | 0.1 °C |
Temperature Sensor | 30 KΩ NTC |
Working Environment | 41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing) |