If you have not started with the Getting Started guide, please follow the steps here: https://vernierst.github.io/godirect-examples/python/. The following troubleshooting tips should help resolve communication issues between Go Direct sensors an...

Yes, it is possible to collect data with a photogate and other digital sensor, such as a Motion Encoder Cart Receiver (MEC-BTD), Motion Detector (MD-BTD), or Rotary Motion Sensor (RMV-BTD). In this case you must connect the photogate to the DIG 2 po...

To determine the age of an original LabQuest, look on the back of the unit. There may be a label on the battery door with a serial number on it. If the unit has a barcode with an eight digit serial number below it, and the first two digits of the...

The Planck's Constant lab in Advanced Physics - Beyond Mechanics requires 4-5 LEDs of various colors. In general most LEDs would work for this lab. The ones easiest to use are "through hole" (i.e. designed for use in a breadboard or to be soldered b...

It is possible to measure tryptophan fluorescence with the Vernier Fluorescence/UV-VIS Spectrophotometer. Here are some tips to help you: You will need to purchase the 280 nm LED separately.To avoid the inner filter effect, you will need a solut...

A new key is  generated every year for Vernier titles that are subscription-based. We do this in order to balance two competing needs: we want to make it very easy for you to share the apps with your students, yet we want those easily-distribut...

Yes. Current releases of Logger Pro, Graphical Analysis, and other applications do support Windows operating systems running on an ARM processor. However, there are few older devices that are unsupported due to driver update issues. Microsoft has in...

If you teach a General, Organic, and Biological Chemistry course, you will find numerous Vernier labs and products that can fit nicely into your curriculum GOB TopicVernier ExperimentVernier EquipmentCalorimetryFrom Food Chemistry Experiments: Fo...

The original Hand Dynamometer was sold until June of 2021. This Hand Dynamometer has grey colored grips. The finger grips are grey and square in shape. The latest version of the Hand Dynamometer (HD-BTA) started shipping in June of 2021. This Hand D...

Go Direct® O2 Gas Sensor (GDX-O2)—current version We currently sell the Go Direct Oxygen Gas sensor, which was first sold in 2018. This sensor can connect via USB or Bluetooth. No interface is required. This version of the Ox...