FNIRSI SG‑004A Mini Signal Generator

The FNIRSI SG-004A is a compact mini signal generator offering professional functionality in a pocket-sized design. It features a 2.4-inch HD backlit display, adjustable brightness, real-time curve viewing, and multi-mode operation. With ≤0.2% measurement accuracy, drop protection, USB-C charging, and up to 24 hours standby, it is ideal for field engineers, technicians, and electronics enthusiasts.

The device supports a wide range of signal types and testing tasks, including voltage/current testing, speed simulation, actuator adjustment, and inverter diagnostics, providing reliable and portable performance wherever you need it.