All of our pH sensors have similar accuracy, response time, and sensitivity, so which one should you buy? It depends on how and where you plan to use your pH sensor. Here is some information to help you choose wisely. ProductElectrode MembraneEl...

The MicroGard® bacterial filter that is used with all Vernier spirometers is effective at filtering both bacteria and many viruses. In independent tests, this filter has shown to have a bacterial filtering efficiency (BFE) and viral filtration effi...

Logger Pro 3.16 supports macOS 10.13 (High Sierra) and newer. Older operating systems will not open the DMG installer and may display the reason as no mountable file systems. This means your Mac operating system is not supported. Older vers...

Google has announced that they have ceased support for Chrome Packaged Apps (or Chrome Apps) on the ChromeOS (Chromebook) platform. Google's recommended replacement for a Chrome App is called a Progressive Web App (or PWA). To continue to provide...

Geographic North, or True North, is the direction pointing toward the Geographic North Pole---the location where the longitudinal lines converge in the Northern Hemisphere. The direction in which a compass needle points is called Magnetic North. Mag...

We offer several options. We have created the following lists to help you decide which kit is appropriate to best fit your needs. These lists are based on grade level, the activity you want to do, and what Vernier book you want to use. I teach: ...

In March of 2020, Go Direct® Mini GC™ (GDX-GC) replaced the Vernier Mini GC Plus (GC2-MINI). There are several differences between the Go Direct Mini GC and the Mini GC Plus. There is a new column and new detector in the Go Direct version;...

These specifications are for the Go Direct® Mini GC™ (GDX-GC) *Always start by measuring a pure compound to see if your mixture and/or unknown can be detected by the Go Direct Mini GC. See a list of compounds that can be detected here: Go Dire...

Go Direct® Mini GC™ (GDX-GC) Specifications and User Guide If you have the Mini GC Plus, see Mini GC Plus Gas Chromatograph Troubleshooting and FAQs If you have the original Mini GC, see Mini Gas Chromatograph Troub...

The Go Direct Current probe Go Direct® Current Probe (GDX-CUR) does not have a replaceable fuse or other protection against short circuits. The internal resistors are rated at 0.33 W. If the rating is exceeded for enough exposure time the r...