Smart DIY multimeter calibrator. It can solve the problems of cumbersome and complicated calibration process, low accuracy rate and prone to errors in the operation process of traditional calibration equipment. A power supply circuit is arranged inside the casing, the power supply output end of the power supply circuit is connected with an AC-DC conversion circuit, the output end of the AC-DC conversion circuit is connected with a processing circuit, and the processing circuit is respectively connected with a resistance value output and conversion circuit, an AC voltage output and Conversion circuit, DC voltage output and conversion circuit, DIY multimeter wiring terminal, function operation key, function indicator light, output operation key and resistance meter head, AC voltage meter head, DC voltage meter head; function operation key, function indicator light, output The operation keys and the resistance meter head, the AC voltage meter head and the DC voltage meter head are arranged on the casing, and a multimeter jack is arranged on the casing, and the DIY multimeter connection terminal is arranged at the multimeter jack place. The structure is simple, the amount of consumables is small, the cost is low, the operation and use are convenient and the practicability is strong.
