GPRS---General Packet Radio Service，general wireless grouping business, is a wireless grouping technology based on the GSM system, it provides end to end, wireless IP connection of wide area. In another words, GPRS is high speed signal processing technology, it transmitts information to users via "grouping". Although GPRS is a transitory technology to the 3rd edition mobile communication , but it's equipped with many outstanding advantages. Wireless ultrasonic level meter can transmit data between principal unit and slave unit via DTU device.

★ Features of GPRS wireless data transmitting:  

1、Easy and convenient installation. GPRS users can randomly arrange and move their network spot, they don't have to worry about maintenance of the circuit or transmitting breakdown due to the movement of units.It won't be necessary to arrange wiring or imbedding the wires. 

2、Low investment of device

3、Low Communication fee. At present, the GPRS service of mobile company is even cheaper than wired phones' network. In GPRS network, users only need to connect with network once to keep long-time connection, it only costs when transmitting datas, which saves cost and engergy to establish contact constantly.

4、Stable and reliable circuit,never lost connection

5、Fast GPRS network access,it provides seamless connection with existing data web.

6、Good coverage, comparing to many wireless data network(two way remote controlling)

7、。Short access time,switch exchange access time shortens to less than 1 sec.

8、★Support IP agreement and X.25 agreement and VPN networking.

  Communication method of Data gather end(DTU RTU) could be chosen within SMS/GPRS/CDMA network based on various circumstances. Device can gather 4-20mA,0～5V、232、485，pulse signal、touch point、switching signal etc.

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