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• Starter 3100's intuitive software includes three point calibration, three buffer groups, automatic and manual endpoint functions, as well as a 99 item library.
• Among Starter 3100's user-friendly features that support ease-of-use are an adjustable standalone electrode holder and large backlit LCD display.
• Documenting measurement data is made simple through the RS232 which can be used to connect peripheral devices such as printers or computers to the meter.

Starter Series Bench Meters offer reliable and accurate pH measurements. Ohaus Starter 3100 pH meters include a variety of user-friendly features providing advanced operational efficiency. Intuitive software and a well-organized LCD display make the Starter 3100 pH meters easy to use. Durable and intelligently designed pH bench meter for a variety of lab applications. 1 year warranty.

The OHAUS ST3100-F includes the 3100 meter, ST310 3-in-1 plastic refillable pH electrode, pH buffer powder set: 4.01, 7.00, 10.01 and in-use cover.

Item Number Item Description PQ Price Qty Avail Quantity
pH Meter, Digital, Bench Meter, 3 Point Calibration
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  Not Subject to Discount
Measurement Range -2.00 – 16.00 pH;
-1999 – 1999 mV;
-5 °C – 110 °C
Measurement Resolution 0.01 pH;
1 mV;
0.1 °C
Calibration 3 Point
Temperature Compensation Yes
Display LCD with backlight
Working Environment 5°C – 40°C, 80%RH, non-condensing
Working Environment  41°F – 104°F, 80%RH, non-condensing
Net Weight  0.75 kg (1.65 lb)
Measurement Range (Voltage) -1,999 mV – 1,999 mV
pH measuring range -2 – 16
Electrode ST310 (Included)
Resolution (Voltage) 1 mV
pH resolution 0.01
Measurement Range (Temperature)  -5 °C – 110 °C
Accuracy ±0.01 pH;
±1 mV;
±0.5 °C
Temperature resolution 0.1 °C
Parameter pH / ORP
In-use cover Included
Temperature Sensor 30 KΩ NTC
Accuracy ± (Temperature) 0.5 °C
pH accuracy (±) 0.01
Battery Life Not Applicable
Power AC Adapter (Included)
Dimensions (Width)  175.0 mm (6.89 in)
Dimensions (Length)  220.0 mm (8.66 in)
Dimensions (Height)  78.0 mm (3.07 in)