Synthetic multicellular systems can accomplish complex tasks. However, their asynchronous design requires precise adjustments, often resulting in undesired output variations. Here, we created bacterial consortia designed for multi-marker detection, achieving member coordination by activating an array of AND logic gates controlled by a shared quorum sensing signal. Our experimental results demonstrate that successful coordination was achieved when the shared signal was generated by an incoherent feedforward loop (IFFL), leading to a low-level signal that maintains a consistent response across 20 cell generations. These characteristics provide a stable relationship in molecule synthesis and prevent amplitude amplification during signal processing, enabling the IFFL to coordinate the asynchronous activities among consortium members effectively. We examined the consortia-based biosensor by monitoring Lactate and Heme in humanized fecal samples for 40 hours. Our findings provide insights into the IFFL system's dynamic response and long-term stability, making them valuable for biotechnological applications e.g., scaling up synthetic multicellular systems.