"Vernier"

The Go Direct O₂ Gas Sensor measures gaseous oxygen concentration levels and air temperature.

This includes Go Direct® Motion detector, Go Direct® Force and acceleration sensor, Go Direct® Voltage probe, Go Direct® Photogate, Go Direct® Current probe (2), ultra pulley attachment, picket fence, Go Direct® Acceleration sensor, Go Direct® Sound sensor, Go Direct® Light and color sensor, Go Direct® 3-Axis magnetic field sensor.

The Go Direct Optical Dissolved Oxygen Probe makes it easy to measure dissolved oxygen concentration, water temperature, and atmospheric pressure.

The Go Direct Gas Pressure Sensor measures the absolute pressure of a gas.

DC power source with a built-in current probe designed for use in electrochemistry experiments.

Investigate the motion of a pendulum.

The Dial-O-Gram is a two-beam unit that combines Dial and Vernier calibrations.

The Go Direct Ammonium Ion-Selective Electrode (ISE) can be used to measure the concentration of ammonium (NH₄⁺) in aqueous samples.

The Go Direct CO₂ Gas Sensor measures gaseous carbon dioxide concentration levels, air temperature, and relative humidity.

Use the Go Direct Glass-body pH to measure pH in aqueous, heterogeneous, and organic solutions.

A powerful and versatile light sensor that measures light in the visible to ultraviolet electromagnetic spectrum.

A three-axis accelerometer with a stable and accurate force sensor that measures forces as small as ±0.1 N and up to ±50 N.

Use the Go Direct® Tris-compatible flat pH sensor to measure the pH of a solution or semisolid, such as food or soil.

This sensor uses type-K thermocouple wire to measure temperatures over the range of −200 to 1400 °C.

Easily and precisely measure the total dissolved salt content in ocean or brackish water.

The Go Direct 3-Axis Magnetic Field Sensor allows you to determine the magnitude and direction of the magnetic field at any point in space.