The Multi-input Data Logger market is principally divided by type, reflecting the underlying sensor interfacing architecture. Analog loggers accommodate voltage or current signals ranging from millivolts to several amperes, and dominate legacy installations where cost‑sensitive, low‑frequency measurements prevail; they account for roughly 40% of total unit shipments. Digital loggers, supporting protocols such as Modbus, CAN, and Ethernet, enable high‑resolution, time‑synchronized data capture and are preferred in modern automation environments, contributing about 35% of market volume. Hybrid devices combine analog front‑ends with digital communication modules, offering flexibility across mixed‑signal environments; their niche but growing adoption represents approximately 15% of sales. Finally, Wireless loggers, leveraging Bluetooth, Wi‑Fi, or LoRaWAN, address remote or hard‑to‑reach sites, currently holding near 10% of the market. Each type’s share is driven by application‑specific performance requirements, regulatory constraints, and total cost of ownership, collectively shaping the overall market size.