Authentication functionality as per ISO 14443. Operating Temperature: -30 +50, no direct sunlight. Storage temperature:-25 to +80. Enclosure IP54 IK10 Polyurethane Bolt Lock. DC Leakage detection inside Built in safety overcurrent, overvoltage, undervoltage, ground fault protection, Surge protection Built in energy meter (1% accurate), Power management / smart charging. Warranty: 24 months from supply, covers manufacturing defects, if any.