Product Introduction
Vehicle information recognition, accompanied by the working parameters of the upload card, including card number, battery level information, button distress information, and other information.
After holding down the "distress" button for more than 2 seconds, the card sound and light (red indicator light) will prompt, and the indicator light will remain on for 10 seconds before turning off.

Product Features
Card battery level indicator: When the card battery voltage is below 20%, the red indicator light flashes slowly.
Release call: After the upper computer calls the card, sound, light, and vibration work. Press and hold the "confirm" button for more than 2 seconds before releasing.

Product parameters
● Explosion proof type: mining intrinsic safety type;

● Weight: approximately 260g;
● Charging voltage: 5V (DC); .
● Operating frequency: 3.9GHz ± 250MHz;

● Wireless positioning distance: ≥ 450m;
● Working voltage: 3.7V (DC).