Description
Year 2017 model, dual geiger tubes sensor, independent calibration factors
Push the detection range upper limit 10 times higher
Large lcd display with auto horizontal and vertical large font display
NOTE: The “Plus†word is for software/firmware name. GMC-500 and GMC-500Plus have same appearance, but difference on software design. The opening screen of the GMC clearly shows the software name, either “GMC-500†or “GMC-500+â€
Dual Sensor; Wifi Internet Data Upload; Large Display
