INFRA Master is a complete battery operated data logger with a built-in GSM/GPRS modem and built-in GSM antenna. The logger has two outgoing connections for the INFRA bus cable.
There is also a connection for an external GSM antenna.
The front panel consists of four buttons (easy operation) and a LCD screen with 4 lines, each can display up to 20 characters.
INFRA Master is either operated with an internal lead-acid battery or connected to mains. The data is stored on the exchangeable CompactFlash card. The INFRA Master contains no measurement electronics and needs no calibration.