FEATURES: Display screen: Blue / Green. Working temperature: -10 °℃ ~ +60 °℃. Controller: SPLC780. Storage temperature: -20 °℃ ~ +70 °℃. Working current: (excluding backlight) 2.0ma (5V). Visual field size: 76.0 mm x 26.0 mm. Interface mode: single row parallel port. Point size: 0.55mm × 0.55mm. Backlight type: El/ LED. Character size: 29.5mm × 47.5mm. Display content: 20 characters × 4 lines. Working voltage: +5V. Packing: 1Pc