The original heatbed kit from GEEETECH is suitable for A20, A20M and A20T printers. The package contains one Superplate Glass, one aluminium heatbed, one NTC-0805 thermistor and wiring for connecting the components. The aluminium heatbed has a thickness of 1.5mm and ensures a gradual distribution of heat. The NTC-0805 thermistor works very accurately and wiring is well insulated. The heat-resistant glass plate is made of silicon carbide and has a special coating, making it perfect as a building platform. Prints adhere better to silicon carbide and are also easier to remove. In addition, it is easier to clean the surface with water or alcohol.
Note: this heated bed is standard soldered for 24V power. Pad 2 solders to '+' and pad 3 solders to '-'. The two red wires are for '+', the middle wires are for the thermistor and the two black wires are for '-'.