exec.json

{
        "geiger_CPM": {
                "title": "Geiger counter on {{HOST}}",
                "vertical": "Counts per minute",
                "rrdtool_opts": ["-X", "0"],
                "type": "default",
                "legend": {
                        "cpm": {
                                "name": "CPM"
                        }
                },
                "legend_format": "%5.1lf"
        },
        "geiger_CPS": {
                "title": "Geiger counter on {{HOST}}",
                "vertical": "Counts per second",
                "rrdtool_opts": ["-X", "0"],
                "type": "default",
                "legend": {
                        "cps": {
                                "name": "CPS"
                        }
                },
                "legend_format": "%5.1lf"
        }
}