Assorted types of digital instruments available are

Multimeter / LCR Multimeter / Capacitance Meter / Clamp Tester / Insulation Tester / Earth Resistance Tester / Non Contact Infra Red Thermometer / Digital Thermometer / Thermo-Hygrometer / Voltage and mA Calibrator / Luxmeter / Tachometer / Sound Level Meter / Anemometer / I/P Converters and many more.