Reliable Signal Precision Locator for Enhanced Security Monitoring Ja-SD04

Reliable Signal Precision Locator for Enhanced Security Monitoring Ja-SD04. Differential Wireless Detection: Automatically corrects sensitivity by measuring field strength change rate for high accuracy. Zero False Alarms: Phase-locked loop technology accurately locks sources and rejects distant interference. Wide Frequency Range: Detects signals from 50MHz to 12GHz including GSM, Bluetooth, Wi-Fi, and GPS trackers. Precise Positioning: Locks transmission sources within 40-100cm distance with high precision. Long Battery Life: Equipped with 800mAh lithium battery providing over 3 hours of continuous working time. Dual Antenna System: Includes 2 omnidirectional antennas with optional directional antenna support. Multi-Mode Alarm: Features sound and vibration alarm modes switchable via light press of power key. Fast Charging: Fully charges in approximately 40 minutes with clear red and yellow indicator lights.