TEANYOTINK

Ammeters; Anemometers; Audio speakers; Calculators; Electric wires; Gas detectors for detecting the presence of gas; GPS data logger for recording trips and classifying them into different accounts; Hourglasses; Laser rangefinders; Level indicators; Magnifying lenses; Measuring rules; Microscopes; Ohmmeters; Oscilloscopes; Pressure test connectors for testing pressure of fluids in hydraulic or pneumatic systems; Slide calipers; Telescopes; Wearable activity trackers