Technical documentation for the Qualirey Ultrasonic Repeller describes a purely analog-mechanical loop system. The hardware relies on a potentiometer-based frequency sweep between 13.5kHz and 45.5kHz. Material analysis of the internal circuitry reveals a 3.7V Li-ion pouch cell with integrated solar charging capabilities, though forensic reports indicate minimal overcharge protection and vulnerability to moisture ingress through the unsealed PIR window.
Performance metrics show that the ultrasonic emitters are subject to decibel intensity degradation within 30 days of operation. Structural analysis identifies the use of brittle plastic for the ground stakes, which are prone to mechanical failure in dry or high-density soil conditions. Standardized testing indicates that the detection range of the PIR sensor is highly contingent on ambient temperature, with performance decreasing significantly when environmental heat exceeds 30°C.
Hardware Specification Audit
Aggregated data indicates a high failure rate associated with water ingress into the battery compartment, leading to terminal corrosion and power cycle failure. Oscilloscope testing of the output demonstrates frequency drift as the battery voltage fluctuates, resulting in inconsistent ultrasonic performance. The system provides a 110-degree detection angle for the integrated PIR sensors.
Technical analysis suggests that the current ingress protection level is insufficient for sustained outdoor exposure in heavy rain environments, often leading to a permanent alarm state or total sensor failure.
If consistent perimeter monitoring is required despite environmental stressors, the Qualirey 4 Pack Ultrasonic Motion Sensor Animal Repellent offers a low-cost, multi-unit entry point for basic deterrent needs. This hardware is categorized alongside other driveway and yard alarms used for perimeter management.
