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NB-IOT water meter -1 (12)

Technical Features

1. High security
•Two-way authentication;
•The air interface is strictly encrypted;
•Dedicated channel, no other signal interference,and more stable data transmission

2.Wide coverage
•20db gain, coding gain;
•lmproved narrowband power spectrum density;
•lt has a retransmission mechanism when automatic transmission fails;

•China Mobile/Telecom's NB-loT base station has achieved full coverage

3.Low power consumption
•Battery life of more than 6 years (1 day/1 communication);

•Simplify protocol and chip micro power consumption;

•High functional efficiency;
•Short transmission/reception time;

4.Big connection
•High frequency increase efficiency;
•Small packet data sending characteristics;

•Very low activation ratio of the terminal.

Specification