{
            "timestamp": "2026-04-03T19:43:12+00:00",
            "device": {
                "id": "SN-79-40",
                "type": "environment_sensor",
                "model": "EMS-4000",
                "status": "normal",
                "firmware": "2.4.0"
            },
            "measurements": {
                "temperature": {
                    "value": 25.44,
                    "unit": "celsius",
                    "thresholds": {"min": -10, "max": 60}
                },
                "humidity": {
                    "value": 45.0,
                    "unit": "percent",
                    "thresholds": {"min": 0, "max": 100}
                },
                "pressure": {
                    "value": 1013.40,
                    "unit": "hPa",
                    "thresholds": {"min": 800, "max": 1100}
                },
                "voltage": {
                    "value": 3.74,
                    "unit": "volts",
                    "thresholds": {"min": 3.0, "max": 4.2}
                }
            },
            "battery": {
                "level": 98.0,
                "health": "good",
                "cycles": 1244
            },
            "signal": {
                "rssi": -64,
                "snr": 20,
                "quality": "excellent"
            },
            "system": {
                "uptime": 259204,
                "memory_used": 34.0,
                "cpu_temp": 40.4,
                "active_sensors": 4
            }
        }