Digital multimeter circuit

Industrial Router Crystal 3.2*2.5mm 3225 26M (26.000MHZ) 12PF 10PPM 20PPM 30PPM

As shown in the figure is a digital multimeter circuit. Digital multimeter, a multi-purpose electronic measuring instrument, generally includes functions such as an ammeter, a voltmeter, an ohmmeter, etc., sometimes referred to as a multimeter, a multimeter, a multimeter, or a three-meter.