GPS receiver for time synchronization for the measuring devices: UMG 604, UMG 605, UMG 508, UMG 509, UMG 511, UMG 512, UMG 96 PA MID seriesOperating voltage: 21-28 V DC (separate power supply)1 digital connection for controlling up to 4 measuring devicesAccuracy UMG 604, UMG 605, UMG 508, UMG 509, UMG 511: 1s Accuracy UMG 512: 20 msAttention: For the measuring devices UMG 604, UMG 605, UMG 508, UMG 509, UMG 511 the APP GPS TIMESYNC (Art. No. 51.00.291) is also required!