The AD16-22HzS R is a square-format digital frequency indicator designed for real-time monitoring of AC frequency in electrical panels. With a measurement range of 0–90Hz, it displays frequency values on a bright red LED screen, ensuring clear visibility in various environments.
Its 22mm panel cutout size and square shape offer a modern, flush-mounted aesthetic compatible with standard enclosures. Built with flame-retardant plastic, it provides impact resistance, low power consumption, and long service life. Ideal for industrial automation, power distribution, and equipment diagnostics, this meter supports DIN panel mounting and operates reliably under vibration and humidity.
TECHNICAL DETAILS:
| Specification | Value |
| Model | AD16-22HzS R |
| Display Type | Digital LED (Red) |
| Measurement Range | 0–90Hz |
| Rated Voltage | AC (typically 220V or 380V) |
| Panel Cutout Size | 22mm (square shape) |
| Installation Type | Panel mount |
| Housing Shape | Square |
| Housing Material | Flame-retardant plastic |
| Operating Temperature | –25°C to +55°C |
| Relative Humidity | ≤98% |
| Vibration Resistance | 2–80Hz, acceleration ≤0.7g |
| Pollution Degree | 3 |
| Protection Class | IP20 |
| Application | Industrial, commercial, control panels |






