Educational Science & Technology
Count/Tachometer Adaptor
Count/Tachometer Adaptor

The Count/Tachometer adapter counts electrical pulses. It contains the calibration for 11 different ranges making this a very versatile sensor for a wide range of investigations.

A Versatile Sensor

The Count/Tachometer Adaptor can count up to 60,000 cumulative events or the speed of a rotating bicycle wheel. It can be used to investigate Newton’s laws with Atwood’s machine or count red and green buses, anything where you count an event or use events per unit of time for rate e.g. revs/second, miles per hour, rpm, counts /second.

data harvest Anemometer sensor weather station
data harvest tachometer sensor
Weather Patterns

Students can study weather patterns with our environmental accessories; by recording wind speeds with our Anemometer or the amount of rain fall over time using our Rain Gauge.

Newton’s second law

Atwood’s machine provides a simple and economical way of testing Newton’s 2nd Law. Find the accelerating force by recording the difference between the weights of the two masses hanging either side of a free running pulley.

data harvest accelerometer sensor kit with dynamics
Pre-calibrated ready for use

The Count/Tachometer adaptor is pre-calibrated at manufacture making it ready to plug-in and start using with minimal setup time. Here's a selection of experiments you can achieve by using the Count/Tachometer adaptor, additional accessories are required.

Measure the distance and speed of a road bicycle
Record wind speed using an Anemometer
Record rain fall using a Rain Gauge
Get distance measurements from a spoked pulley
Study circular motion
Use with switches to count events
Muscle fatigue using a Light gate
Bike speed and exercise
Downloads & Resources

All available downloadable product resources such as manuals and firmware for the Count/Tachometer Adaptor

Product Manuals

Download Count Tachometer Sensor Manual | Version: 2

Your Purchasing Options

The Count/Tachometer is supplied as a single adaptor item and designed to be used with other sensors such as an Anemometer or a rain gauge.

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

Product Order No.
Anemometer Anemometer 3297
Anemometer Pack Anemometer Pack 3297PK
Count/Tachometer Adaptor Count/Tachometer Adaptor 3296
Rain Gauge Pack Rain Gauge Pack 3298PK

Count/Tachometer Specification

Ranges 11
Cumulative 0 to 1,000, 0 to 60,000, Counts/second
Revs per minute, per second
Wind Speed (Anemometer) m/s, mph
Rain fall (Rain gauge) mm
Speed (Spoked pulley) m/s, mph
Distance (Spoked pulley) m
Connectivity Mini-Din to Data Logger
Battery Not Required

What's in the box

Count/Tachometer Adaptor
1.5m Mini-Din Sensor Lead
EasySense Software (Digital download)
Sensor Manual (Digital download)