Microchip Scanner For Pets Bt 4.0 OLED Display Store 128 Pieces Of Data For Small Animal Management Resource Management Railway Inspection   This pet chip reader is equipped with a 0.91-inch OLED display, supports BT 4.0, and can read and store 128 pieces of data. It is suitable for small animal management, resource management, railway inspection, and other scenarios. Features: Dual-frequency reading: Supports 134.2/125Khz two frequencies of tag recognition to meet different usage requirements. OLED display: 0.91-inch high-brightness OLED display, clear even in the dark. Multiple upload modes: Can store 128 pieces of data, support one-click upload to the computer. Wide use: Suitable for small animal management, resource management, railway inspection, and other scenarios. BT 4.0: Supports BT 4.0 for convenient and fast data transmission. Specifications:  Working frequency: 134.2/125Khz  Tag format: FDX-B, EMID(ISO11784/85)  Induction interval: < 100ms  Power supply: 3.7V (lithium battery)  BT communication: BT 4.0  Working temperature: -10°C~50°C / 14°F~122°F  Storage temperature: -30°C~70°C / -22°F~158°F Appearance specifications: 13.5*6*1.4cm / 5.3*2.4*0.6in  Weight: 110g / 0.24lb Package list:  1 x Pet Chip Reader  1 x USB Charging Cable  1 x User Manual