98L27004020000 is a high-performance aircraft landing gear tire pressure monitoring sensor (TPMS), engineered to AS9100D aerospace standards and SAE AS5669 specifications, tailored for Boeing 777 and Airbus A350 main landing gear systems in commercial aviation MRO and line operations.

Constructed from a rugged, corrosion-resistant titanium alloy housing with IP68 waterproofing, it features a 0–250 psi measurement range with ±1 psi accuracy and a 433 MHz wireless transmission module for real-time data syncing to cockpit or ground monitoring systems. Weighing 0.18 kg and measuring 45mm×30mm×22mm, it operates at -50°C to 120°C and has a 10-year lithium battery lifespan. Compliant with FAA Part 25 and EASA CS-25 regulations, this sensor enables proactive tire pressure maintenance, reducing landing gear downtime and enhancing aircraft ground operation safety for global fleets.