The Dresser Micro GSM/GPRS Modem incorporates the Multi-Tech Model MTMMC-G-F2 Dual Band GSM/GPRS Modem. Opto-isolators provide an intrinsically safe unit specifically designed to work with the Dresser range of Micro Series products including volume correctors and data loggers. An internal rechargeable lithium polymer battery is designed to be charged from a 7 to 24V DC supply or any suitable power source. An internal power regulator prevents any internal damage from excessive voltage. Internal diagnostic LEDs aid in installation and troubleshooting on site. An external LED displays network or communication status. The Dresser Micro GSM/GPRS Modem is designed to work directly with the MCNet SQL Database software.