XT30 XT60 Fuses Anti-Short Circuit Protector Crossing Machine Installed Test Plug Description: Model Aircraft XT30/XT60 Fuse-Based Short-Circuit Protector,effectively detects 90% of short-circuit hazards during installation. XT60 or XT30 input (only one battery may be inserted into either port at a time; connecting two batteries simultaneously is prohibited). XT60 or XT30 output. Input voltage range: 2-6S. Output voltage matches input voltage. (Input voltage must remain within the aircraft's tolerable voltage range). Caution: Due to the maximum 1A output current limit, DO NOT throttle up or attempt flight while this device is connected! Instructions: Connect the battery to the aircraft via the short-circuit-proof plug. If no short circuit exists and wiring is correct, the green LED will remain steadily lit. If a load short circuit or wiring error occurs, the LED will turn off and an audible alarm will sound. Package includes: 1 * Fuse-Based Short-Circuit Protector Note: Only the above package content, other products are not included. Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.