[ BANDS] 4 frequency bands - 850/900/1800/1900MHz for reliable connectivity
[EFFICIENT DATA TRANSMISSION] Send data packets to web server through HTTP protocol
[SIMPLE ] No need for TCP Server development, easy options with script usage
[WIDE COMPATIBILITY] Support for PHP or ASP languages, suitable for B/S systems
[ PERFORMANCE] High-quality components ensure long-lasting use

Spec:
Item Type: GPRS Serial Device Server
Material: Aluminum alloy
Model: HF-2111
Unlimited Parameters:
Standard: GSM/GPRS
Speed: 85.6Kbps (DL, UL)
Frequency Band: 850/900/1800/1900MHz
Multi-Slot Class: GPRS Class 12
Terminal Device Class: Class B
Coding Method: CS1, CS2, Cs3, CS4
Maximum Transmit Power:
GSM850/GSM900: Class 4 (2W)
DCS1800/PCS1900: Class 1 (1W)
Application Mode: AT command set
Network Protocol: TCP/UDP
Number Of Network Connections: 3
SIM Card: 1.8V/3V
Interface: SMA (female, 50Ω)
Hardware Parameters:
Data Interface: 1 RS232/RS422/RS485
RS232: Gold-plating male DB9 connector
RS485/RS422: 5.08mm terminal block
Data Bits: 5, 6, 7, 8
Stop Bit: 1, 2
Check Digit: None, Even, Odd
Baud Rate: 1200bps~115.2Kbps
Control: /CTS
Cache: 1K
Size: Approx. 95 x 65 x 25mm / 3.7 x 2.6 x 1in
Working Temperature: -40~85℃
Input Voltage: DC9-36V
Working Current: ~400mA
Power Consumption:

Package List：
1 x Serial Server
1 x Cable
1 x Suction Cup Antenna

Note：
Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.