Scientech Technologies Pvt. Ltd. Offers Digital Multimeter with 3 & 1/2 Digits LCD Display, Caddo 51. Scientech Technologies Pvt. Ltd. Is an ISO 9001:2000 certified company. The Digital Multimeter with 3 & 1/2 Digits LCD Display comes with Square Waveform output, TTL Logic and Frequency Measurement. Salient features of this Digital Multimeter are as follows: