125kHz T5577 Rewritable RFID Keyfob
High-frequency 125kHz RFID technology ensures reliable proximity detection for seamless access control. Rewritable T5577 chip allows unlimited reprogramming for flexible use across multiple systems. Durable ABS plastic housing with reinforced edges resists wear, drops, and harsh weather conditions. Compact keychain design (28x18x4mm) fits effortlessly with keys or badges. Ideal for office buildings, hotels, gyms, parking lots, and smart home systems. Pre-configured or custom encoding available for instant deployment. Bulk pricing optimized for large-scale security upgrades—wholesale discounts apply. Global shipping with guaranteed lowest industry pricing.