Keep your home, workplace, or inspection site safe with the RM-75 Radon Detector - a high-precision, easy-to-use device designed to monitor radon gas and protect you from harmful alpha ionizing radiation. Built with an advanced self-developed radon pulse ionization chamber sensor, the RM-75 ensures reliable, real-time detection of radon concentration levels. With a vibrant 2.1-inch HD touch screen, intuitive UI, and real-time display of temperature and humidity, the RM-75 offers clear, accurate data at a glance. Designed for convenience, it stores up to 508 days of historical data, automatically generates PDF reports, and connects to your computer via USB - no additional software needed. Precision Radon Detection: Features a high-accuracy pulse ionization chamber sensor developed in-house for dependable performance. User-Friendly Touch Display: 2.1inch 480x480 resolution capacitive color screen with easy-to-navigate UI for smooth operation. Real-Time Monitoring: Updates radon levels every 10 minutes, displays hourly averages, and records long-term data automatically. Customizable Alerts: Set your own alarm thresholds and alpha tone notifications to stay informed and ventilate when needed. Sensors: High Precision Radon Ionization Chamber Pulse Sensor + Temperature and Humidity Sensor Measurement Range: 2Bq/m-20kBq/m Measurement Accuracy: 10% Reliable Data Measurement Time: 1 Hour Battery Capacity: 5000mAh 3.7V Battery Life: . 12 days (with screen off) Charging Port: Type-C port (green light always on when charging, off when full) Charging Time: . 6 hours for full charge (power off) Alarm Time: 20 seconds every 10 minutes after over run Testing Environment: -10-45 RH Less than 80% (data is not allowed to work beyond the range) Size Weight: Diameter: 81mm, height: 130mm, weight: 320g. Color:White Material:plastic Package Contents: 1 * Radon Detector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.