3G Modems for Wireless M2M / IoT

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M300 3G Modem

The M300 series Cellular Modem is a compact, ruggedized industrial wireless USB modem providing global wireless cellular network connectivity, where cellular signal available, with 3G/2G fallback capabilities for ensured access to the internet and private networks anywhere for wireless M2M and IoT.
In addition to the robustness, reliability, security, friendly-using, the M300 is competent to be engineered to protect against extreme temperatures, humidity, shocks, vibrations, dust, reverse polarity, and transient voltage, which is widely used in more than twenty industrial fields, such as CCTV security surveillance, AMR, vehicle, retails, vending machines, power control, water schedule, traffic, oil field, weather forecast, environmental protection, street lamp control, post, bank and many other fields.


M300 3G Modem M300 3G Modem

More Pictures and Diagram for M300 3G Modem >>

highlights for Router/Modem
1) Built-in 2G/3G industrial cellular module with sim card slot, insert SIM/UIM card to work directly
2) Wide range DC input 5-40V, option 5-60V
3) SIM failover/standby APN
4) 2G/3G failover for fixed line broadband connections
5) External antenna connectors for high gain antennas replacement
6) Support At command
7) High speed USB port, ESD protection
8) MIMO supported
9) Robust Metal Case and anti-lightning protection. Provide IP30 protection

more highlights

>> Rubust and Working in Wide Range Temperature

Quality industrial grade casing provides robust and reliable 3G modem for installation in many different environments and operating temperature of -35 Celcius to +75 Celcius

3g modem supports wide range temperature

>> Dual Power Input

The M300 3G Modem supports wide voltage range of 5V to 40V DC (option up to 60V DC) and has two power inputs so if the primary power fails then the modem will automatically use the second power supply without link downtime.

Dual Power Input 3G Modem

>> Three Types of Installation (Din-rail, wall-mount, Desktop)

3G Modem Din-rail wall mount and desktop Installation

>> GNSS / GPS is supported

GPS for 3G Modem

M300 3G Modem

M300 3G Modem

CDMA2000 EVDO Rev 0/Rev A/Rev B
Cellular Frequency

UMTS/HSPA/HSUPA/HSPA/HSPA+/DC-HSPA+ (WCDMA/FDD) 850/1900/2100 MHz or 850/900/1900/2100Mhz/AWS optional

Quad-band EGSM 850/900/1800/1900Mhz

CDMA1x/EVDO: 800/1900Mhz or 450Mhz optional
3G TD-SCDMA: 2010~2025MHz/1880~1920MHz


Notes: There are many different band and frequency for 4G LTE. Please confirm the detailed band and frequency with your carriers before order.


DC-HSPA+: Downlink 42Mbps, Uplink 5.76Mbps;
HSPA+(H): Downlink 21Mbps, Uplink 5.76Mbps;
HSPA+(L): Downlink 14.4Mbps, Uplink 5.76Mbps;
HSUPA: Downlink 7.2Mbps, Uplink 5.76Mbps;
HSDPA: Downlink 7.2 Mbps, Uplink 384k bps;
WCDMA/UMTS: Downlink/Uplink 384 kbps;


EDGE: Downlink 236,8 kbps, Uplink 118 kbps;
GPRS: Downlink 85.6 kbps, Uplink 42.8 kbps;


CDMA1x: Downlink/Uplink 153.6kbps;
Rev B: 14.7Mbps downlink, 5.4Mbps uplink
Rev A: 3.1Mbps downlink, 2.4Mbps uplink
Rev O: 2.4Mbps downlink, 153.6kbps uplink

3G TD-SCDMA: 2.8Mbps


Notes: the bandwidth is peak value. Real value depends on carrier network support.


Antenna 50Ω SMA female interface *3, external detachable;
Antenna for Main Cell, MIMO Cell, GPS
Led Power indicator
Data indicator
USB USB 2.0 female
Power supply DC5V-40V, option DC5V-60V, typical DC9V1A or 12V1A or 12V2A;
Dual Power Inputs / Power Failover;
Two types of input jack for DC
2.5mm DC jack * 1
Terminal Block * 1
Power consumption Peak: 700mA@+9VDC
Average: 85mA@+9VDC
Idle: 30mA@+9VDC
Minimum System Requirements Windows, Linux, Mac OS, IOS, Symbian, Android, other OS support USB port;
At command Support at command;
Packed with GUI software
Operating Temperature Work temperature: -35C to 75C option for -30°C to 80°C
Storage temperature: -40°C to 85°C
Humidity 95% Maximum (Non-condensing)
Dimensions Item (L x B x H): 87mm*50mm*23mm
Packaging (L x B x H): 102*70*23mm
PCBA: 84mm*48mm*20mm
Weight 150g (not including accessories and package)
Electromagnetic compatibility anlistatig test: Class 3
Radio electromagnetism test: Class 3
Warranty 1 Year, can extend up to 5 years
Package Contents The M300 Series Modem
USB cable
Power Adapter
Other accessories depends on option features

M300 3G Modem

M300 Order Part Number

M300 Order Part Number

the Ports of E-Lins Router and Modem

the supported Radio of E-Lins Router and Modem