The AD16-22DHz R is a microprocessor-based digital frequency meter designed for real-time monitoring of AC frequency in electrical systems. With a measurement range of 0 to 90Hz, it displays frequency values on a bright red LED screen, making it easy to read in various lighting conditions.
Its 22mm diameter allows for easy installation in standard panel cutouts. The device is built with high-strength plastic, offering impact resistance, flame retardancy, and long service life. It operates reliably in environments with high humidity, vibration, and temperature variations, making it ideal for industrial automation, power distribution, and equipment diagnostics.
TECHNICAL DETAILS:
| Specification | Value |
| Model | AD16-22DHz R |
| Measurement Range | 0–90Hz |
| Display Type | Digital LED (Red) |
| Panel Cutout Diameter | 22mm |
| Operating Voltage | AC (typically 220V or 380V) |
| Operating Temperature | –25°C to +55°C |
| Relative Humidity | ≤98% |
| Vibration Resistance | 2–80Hz, acceleration ≤0.7g |
| Pollution Degree | 3 |
| Installation Category | III |
| Housing Material | Flame-retardant plastic |
| Mounting Type | Panel mount |
| Application | Industrial, commercial, control panels |






