Parameters:

Dimension：φ69.8mm*37.8mm

Operating voltage：OSSI DC-5V 1A

Operating current：≤100mA

Operating peak current：＜1A

GSM Working frequency：3G UMTS/HSDPA

(EU)900/2100@UMTS;900/1800@GSM

(US)850/1900@UMTS;850/900/1800/1900@GSM

SIM Card type：（Micro SIM）

Support network: GSM (Global System for Mobile Communications)

Working temperature：-10℃~55℃

Relative humidity：≤95% (No condensation)

Features:

1.Support for remote operation via voice prompts

2.Support alarm via voice prompts

3.Support Contact ID protocol upload alarm center