Display Type: Character LCD module displaying 16 characters x 4 lines (16x4). Backlight: Blue LED backlight with white characters for clear visibility. Operating Voltage: 5V DC – compatible with Arduino,...

Function: Compact vacuum and air suction pump, ideal for creating negative pressure or airflow in small systems. Operating Voltage: 12V DC – suitable for battery-powered and low-voltage applications. Air Flow...

Battery Type: 9V Rechargeable Ni-MH (Nickel-Metal Hydride) battery. Capacity: 200mAh – suitable for low to moderate power consumption devices. Voltage: Standard 9V output (nominal), ideal for electronics and testing tools....