Development of an IoT-Based Indoor Air Quality Monitoring Platform

Table 7

Specifications of the LTE module.

Index	Specification
Communication method	LG U+ LTE B5/B7 FDD cat. 4
Band	LTE FDD 850 MHz(B5)/2.6 GHz(B7)
Interface	DB9 RS-232, RJ-45 ethernet, GPIO
Data speed	150 mbps DL/50 mbps UL
Input voltage	4.5 to 5.5 V
Operating temperature	-20 to 60 Celsius