Compact MPPT solar charge regulator for 12/24/48 V battery systems with reliable protection, efficient charging, and remote monitoring. - Protection and safety: Temperature protection with fan on at 45 C and fan off at 40 C; PV reverse polarity protection; PV input overvoltage protection; battery overcharge and low voltage protection; output current limit protection. - Charging performance: Full MPPT regulator with intelligent maximum power point tracking; automatic battery voltage detection 12/24/48 V; three stage charging to optimize battery life. - Installation and compatibility: Easy wall mounting; supports multiple devices in parallel without external adapters; suitable for lead-acid, ventilated, and gel batteries. - Monitoring and control: Multifunction LCD; remote parameter configuration; real time data accessible online; compatible with iOS and Android devices. - Build and specs: Acoustic noise under 40 dB; forced air cooling; industrial grade components; size 21.5 x 11.5 x 5 cm; weight 1.3 kg; IP21 protection; indoor use; operating temperature 20 to 55 C; storage 40 to 75 C. - Certifications: EN 62109-1, EN 60730-1, EN IEC 61000-6-3, EN IEC 61000-6-1. - Use scenarios: Off grid tiny homes or cabins; RV or boat solar installations; remote sensor or telecom sites requiring reliable power and monitoring.