Envirotainer, announced that China Southern Airlines has approved the Envirotainer Releye® RLP for usage on their fleet of aircrafts. With this approval, China Southern can now transport the Releye® RLP on their extensive network, increasing the capacity to meet ever growing need for temperature-controlled, high-quality and connected ULD solutions. The Envirotainer Releye® RLP is a LD11-sized unit with a unique air flow technology for maximum temperature stability in the cargo bay. The RLP-size fits 3-euro pallets (or 2-US pallets) and fills a strategic gap between the larger RAP-size and the smaller RKN-size allowing for increase efficiency by mixing and matching sizes based on shipment volume. The Releye® RLP uses rechargeable batteries to power its electric heating and compressor cooling system and can power its system for over 170 hours on a single charge. With its unique feature set, the Releye® RLP sets a new standard for secure cold chain solutions bringing a temperature-controlled air freight container to market with a new footprint, autonomy and fully integrated live monitoring.