MODLE:DST-20 solar energy power supply,easy operation,big LCD display screen.suitable for various refrigerant equipments such as refrigerator and display cabinet power supply:solar battery panel temperature measuring range:-50~150°C (when temperature>80°C or <-20°C,need to custom sensor wire) resolution:0.1 accuracy:±1°C  operation envieonment: illumination level≥100lux humidity:5~85%rh,temperature:-10°C~45°C sensor:ntc