The FH 40 G family of advanced survey meters is designed for multiple radiation protection measurements. The integrated design represents a versatile, user-friendly, hand-held radiation measurement system designed for many different radiation protection applications. The FH 40 G is rugged, lightweight, fits snugly in the palm of the hand and is easy to operate with large keys that enable users wearing gloves. A rich choice of external probes can be connected to FH 40 G with cable. Readings from both the internal and external detectors are measured simultaneously!