Red Lion Controls APLVD400 AC Voltage Monitor

The Red Lion Controls APLVD400 Apollo DC voltmeter is a compact, panel‑mount meter that displays DC voltage on a 3‑1/2‑digit LED readout. It measures DC voltages from 1.999 to 300 V, and it fits a 92 × 45 mm front‑panel footprint, designed for control panels and lab benches where a clear, numeric voltage indication is required. Operating temperature range is 0 to +60 °C, making it suitable for many industrial environments. As part of the Apollo family, the APLVD400 provides a straightforward DC voltage display for monitoring DC bus voltages, battery strings, and DC power supplies in automation and instrumentation applications. This model is commonly used where compact, unambiguous voltage readouts are essential and space on the panel is at a premium. In everyday use, technicians rely on the APLVD400 to confirm DC level quickly, with the 1.999–300 V scale offering a simple means to verify voltage presence and magnitude in a single glance.