MODLE:DST-30 solar energy power supply,easy operation,big LCD display screen, small size,waterproof design.suitable for various refrigerant equipments such as refrigerator and display cabinet. power supply:solar battery panel temperature measuring range:-50°C~150°C (when temperature>80°C or <-20°C,need to custom sensor wire) resolution:±1°C operation environment:illumination level ≥200lux humidity:5~85%rh temperature:-10°C~45°C