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CONTACT US|Tel: 01525 373666
Educational Science & Technology
CONTACT US|Tel: 01525 373666
Drop and Bubble Counter

Drop and Bubble Counter

The Drop / Bubble Counter is perfect for highly accurate automated titrations. It can be used to count either drops of fluid falling from a dropping device e.g. during a titration, or bubbles rising through fluid in a column.

Warranty & Support

All our sensors are supplied with 5 years warranty and lifetime support.

1 year limited warranty on the reservoir, taps and dropping points.

Accurate Automated Titrations

The Counter makes use of an infrared beam which when interrupted (e.g. by a drop or bubble) creates a digital signal that is counted. A red LED indicator will blink as a drop or bubble passes. There is a small button close to the indicator that can be pressed to reset a count to zero. 

Use one of the 7 pre-calibrated ranges or count the drops and calibrate to the drop size. Accuracy is to the volume of the last counted drop.

data harvest temperature sensor
data harvest temperature sensor
Practical Teaching

The Counter can be used to investigate a number of scientific experiments such as:

  • Acid-base titrations
  • Conductometric titrations
  • Large bubble counting for rate of reaction work
  • Gas Evolution 
  • Fermentation monitoring
  • First derivative of rate of change of pH
Your Purchasing Options

For customers outside of the UK, please contact Data Harvest or an overseas distributor within your country.

Drop and Bubble Counter Drop and Bubble Counter
Order No. 3266
Drop/Bubble Counter Replacement Parts Pack Drop/Bubble Counter Replacement Parts Pack
Order No. 3271
Downloads & Resources

All available downloadable product manuals and firmware for the Drop and Bubble Counter

Product Manuals

Download Drop Bubble Counter Sensor Manual | Version: 3


Ranges 3, Counts, Volume, Drop Rate
Counts 0 to 10,000
Volume 0 to 120 cm³
Drop Rate 23 to 29 drops per cm³
Infrared Source Peak at 880 nm

What's in the box

1x Drop and Bubble Counter
1x Alignment Plate
1x Mounting Rod (80 mm long x 10 mm diameter with a M6 thread)
1x Reservoir (approx. 55 ml capacity)
2x 2 x 3-way stopcock control taps
1x Dropping Point