Scientech Technologies Pvt. Ltd. Offers Digital Multimeter with ACV Frequency Response, Caddo 61. Scientech Technologies Pvt. Ltd. Is an ISO 9001:2000 certified company. The Digital Multimeter with ACV Frequency Response is used for Resistance, Frequency and Capacitance measurement. It is applicable for diode checking and continuity testing. Salient features of this Digital Multimeter with ACV Frequency Response are as follows: