This information relates to connecting a Hand Dynamometer (HD-BTA) to an NI-ELVIS interface. In some situations, the signal may be noisy. To fix this, simply place a resistor in series with the output signal of the sensor. The resistor can be somewhere in the range of 5k ohm to 7k ohm.
![](https://www.vernier.com/til/wp-content/uploads/sites/2/2021/03/hd-bta-with-elvis-994x1024.png)
If you are using the Vernier Hand Dynamometer with NI-ELVIS, you might be interested in this sample code and bioinstrumentation courseware, as well as this webcast from National Instruments.