The security patrol system is a system for recording employee patrols in various situations. It helps ensure that employees perform the specified rounds at the right time intervals and provides an almost indisputable record for legal or insurance reasons. Essentially, the system provides a way to record when employees have reached a certain point in their travels. Features: Silicon storage tank with outer casing made of silicone and IP67 waterproof. Real-time internal clock, flashlight and compass are equipped. High-brightness LED display for time, temperature and compass. Long distance 2.4G tags and 125Khz tags are read. 2.4G wireless communication for data transmission. Damage absorption, electrical shock resistance, power failure protection. Splendid shape design, easy to operate. Can be used in harsh environments with a long working life. Specification: Condition: 100% Brand New Material: Silica gel Color: As picture shown Working frequency: 125Khz Storage capacity: 60,000 records Battery: 3.7V rechargeable lithium battery, 1150mAh LED specification: Irradiation distance: 5-6m IP ratio: IP67 Charging time: 2.5 hours Card reading distance: 3-5cm Operating temperature: -45°C - 85°C Working humidity: 10%-90% Packing size: 21.5*17*7.5cm/8.5*6.7*3.0in Application: fit for patrol security, patrol guards, oil pipeline inspections and inspections, power transmission cable inspections, monitoring time and attendance rates, reporting accidents and meter readings, police patrols, patrols of the army, daily rounds of nurses, remote inspection and maintenance equipment. Package List: 1 * Patrol machine 1 * Power supply 1 * USB data cable 1 * Storage bag 1 * CD .