For your convenience in registering Vernier Science Education as a vendor, a completed W-9 form is attached below. If you have further questions please email orders@vernier.com. For 2025 Vernier W9 2025Download For 2024 Vernier-W...

If you calibrate the Go Direct® Ethanol Vapor (GDX-ETOH) and the software cannot apply a proper function, the sensor will report that it is reading 100%. Verify that you are using appropriate concentrations for your calibration. Repeat the ca...

The shaft of the Go Direct® Ethanol Vapor (GDX-ETOH) is slightly smaller than the Ethanol Sensor (ETH-BTA). This means that the stopper #6 Stopper for Ethanol Sensor (ETH-STOP) will not hold the Go Direct Ethanol Vapor in place. To fix this ...

We do not recommend autoclaving the 250 mL Nalgene bottles , 250 mL Nalgene Bottle w/Lid (CO2-BTL), that ship with the O2 and CO2 gas sensors. We also do not recommend autoclaving the BioChamber 250 (BC-250). The bottles are made of Polyethylene...

This article applies for the following sensors: Go Direct® Motion Detector (GDX-MD) Go Direct® Photogate (GDX-VPG) Go Direct® Sound Sensor (GDX-SND) Go Direct® Static Charge (GDX-Q) Go Direct® Sensor Cart (GDX-CAR...

It is not usually necessary to perform a new calibration when using the Relative Humidity Sensor (RH-BTA). You can simply connect the sensor to a Vernier data-collection interface, start your Vernier data-collection program, and the stored calibrati...

The following information describes how to set up Go Direct Photogates (GDX-VPG) when using LabQuest App. If you are collecting data with Graphical Analysis or Graphical Analysis Pro, see this article. If you are collecting data with a wired Vernie...

Relative Humidity Sensor (RH-BTA) Specifications and User Guide Troubleshooting Primary Test: Plug the sensor into an interface and run the data-collection program. Check the readings on the default screen. Move the s...

Go Direct® Hand Dynamometer (GDX-HD) Specifications and User Guide Troubleshooting General: Press the power button on the sensor to turn it on. Connect your sensor as described in the Getting Started instructions for your ...

If Logger Pro is crashing with a specific error message, check to see if the error message is listed here:Logger Pro Troubleshooting and FAQs Most Logger Pro startup related issues are caused by bad installations. As such, the first thing to try ...