Test/Measure/Experiment
Testing and measuring related tools and equipment
USB Detector Current Voltage 3V-9V Tester Dual USB Dual display (USB Docter Dual)
Use the USB Charger Doctor to measure the working voltage and current output for any USB port and project. This plastic dongle plugs between a USB device, and passes the data lines through.
130A High Precision DC Watt Meter And Power Analyzer (DC Power analyzer)
We found this little unit great to measure our incoming solar power versus outgoing battery load on a second unit
1.2V-4.8V and 9V Battery Voltage tester AN-168 (Battery tester AN-168 POR)
Place the battery between the two contact points of the battery tester.
The display will tell you immediately if there is the desired voltage.