Go Direct® Voltage Probe (GDX-VOLT) 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 d...

It is always a bit tricky to state an accuracy figure, since it depends on what the sensor is connected to and how it has been calibrated. Assuming you are using DVP-BTA connected to a LabPro or LabQuest, the first number to look at is resolution,...

PAR Sensor (PAR-BTA) Specifications and User Guide Which Apogee sensor head does my PAR Sensor have?In May of 2023 the SQ-100X sensor head was introduced for the PAR sensor (previous model was SQ-110). The head of the new sen...

High Current Sensor (HCS-BTA) Specifications and User Guide Troubleshooting Primary Test: Plug the probe into an interface and run the data collection program. Use wire leads to connect the probe to a DC supply with a known ...

Constant Current System (CCS-BTA) Specifications and User Guide Troubleshooting Primary Test: Connect the Constant Current System to the interface. Connect the AC power adapter. (Included, but the same as LabQuest® Po...

The only disadvantage of the Vernier Optical DO Probe (ODO-BTA) is that it costs more. It is both easier to use and more accurate than the older Dissolved Oxygen Probe (DO-BTA). The chart below shows a feature comparison. Feature Optical DO Probe ...

The Sound Level Sensor (SLS-BTA) is a lower cost alternative to the Sound Level Meter (SLM-BTA, discontinued). It is a simple, easily-operated sensor to measure and investigate sound levels in typical classroom environments. The Sound Level Meter ...

Acoustical engineers organize the audio spectrum into sound octave bands. The weighting switch on the Sound Level Meter (SLM-BTA, discontinued) or selection of the A- and C-weighted channels on the Go Direct® Sound Sensor (GDX-SND) is used to add...

There are two issues that may cause this to happen. 1. The reading from the Differential Voltage Probe (DVP-BTA) is not centered around zero (0). You can determine this by studying the reading from the Voltage Probe when both solar panels are in t...

Both sensors support Bluetooth® low energy technology if they came with a Polar Heart Rate Module. Using Bluetooth® for data collection is very stable and is done at lower sampling rates. This is the best method for collecting heart rate data. The...