In Lab #1 of the 2013 AP Chemistry lab book published by AP Central, the student is directed to measure % transmittance (%T) of a series of solutions of blue 1 food dye. When using a colorimeter, Logger Pro 3 defaults to displaying both %T and ab...

Yes, but it is not easy. The wheel/axle assembly from a Vernier dynamics cart will fit on a pasco cart. Pasco wheels use unsealed bearings which age and gather dirt. Replacing the assembly with the Vernier equivalent will improve cart performance....

Logger Pro is no longer receiving update. The final release is v3.16.2. If you are a student, you should work with your instructor to gain access to Logger Pro 3 download links and passwords. Vernier has no way of verifying enrollment, so we do n...

Logger Pro software is no longer sold and is no longer updated. The best layout of graphs for the screen (as in Logger Pro) is a little different from the optimal layout for importing into a word processor for a report. Here are some ideas for im...

There is an intermittent timing related issue when first connecting an Ohaus balance, VGPS, or Watts Up device to Windows 8 32 bit operating systems when Logger Pro is running. In that very specific circumstance, Logger Pro will hang on some Windows...

There can be several reasons why Logger Pro will fail to communicate with the Watts Up. Logger Pro 3.8 or newer is required for Watts Up. If you have an older version, you will need to update. See: https://www.vernier.com/support/updates/logger-p...

Yes. We do indeed sell replacement lids. See Cuvette Lids (100 per pack) (CUV-LID) These lids can be used with the cuvettes for the Colorimeter (COL-BTA), Go Direct® Colorimeter (GDX-COL), SpectroVis (SVIS, discontinued), SpectroVis Plus (SVI...

For most spectrometers and colorimeters, the useful absorbance range is from 0.1 to 1. Absorbance values greater than or equal to 1.0 are too high. If you are getting absorbance values of 1.0 or above, your solution is too concentrated. Simply dilut...

We do not recommend submerging the microphone in water. It is not intended for that use. We do not at this time sell a sensor designed for measuring sound under water....

New Features •New Sensor Support      • Vernier Motion Encoder System      • PAR Sensor      • Emissions Spectrometer      • UV-VIS Sp...