Before procurement teams confirm MT4Y-AA-4N, they typically review Autonics Proximity Sensor, Autonics M4M1P Di Xx and Autonics Tcn4 Series to double-check performance ratings, stock availability, and supplier credibility carefully.
Autonics MT4Y-AA-4N Digital Panel Meter
The Autonics MT4Y-AA-4N Digital Panel Meter offers 4-digit 7-segment LED display method, 14.2mm character height, -1999 to 9999 display range, AC current, Frequency measurement. Manufactured by Autonics under the Autonics Digital Panel Meter category, this model belongs to the Autonics MT4Y Series.

| Brand | Autonics |
| Product Type | Digital Panel Meter |
| Model Number | MT4Y-AA-4N |
Autonics MT4Y-AA-4N Digital Panel Meter – Technical Specifications
| Specification | Value |
|---|---|
| Display method | 4-digit 7-segment LED |
| Character height | 14.2mm |
| Max. display Range | -1999 to 9999 |
| Measurement | AC current, Frequency |
| Input specification | 0-5A, 0-2.5A, 0-1A, 0-500mA, 0-250mA, 0-100mA, 0-50mA |
| AC Measurement | Average value (AVG), Root mean square value (RMS) |
| Power supply | 100-240VAC~ 50/60Hz |
| Output_Main Output(Comparative Value) | Indicator |
| Display accuracy | • 23℃±5℃ - ± 0.3 % F.S. rdg ± 3 digit (frequency: ± 0.1 % F.S. rdg ± 2-digit)• -10℃ to 50℃ - ± 0.5 % F.S. rdg ± 3-digit |
| A/D conversion method | ΣΔ (Sigma Delta) ADC |
| Sampling cycle | 16.6ms |
| Environment_Ambient temperature | -10 to 50℃, storage: -20 to 60℃ |
| Environment_Ambient humidity | 35 to 85% RH, storage: 35 to 85% RH |
| Insulation type | Double insulation or reinforced insulation(mark: @(INS), dielectric strength between the measuring input part and the power part: 1kV) |
| Protection structure | IP56 (front part, IEC standard) |
| Unit weight (packaged weight) | ≈ 134 g (≈ 213.5 g) |
Built for accuracy and resilience, the Autonics MT4Y-AA-4N features a bright 4-digit 7-segment LED with a 14.2mm character height, ensuring excellent visibility in industrial panels. This Digital Panel Meters with Diverse I/O supports input ranges such as 0–5A, 0–500mA, and 0–50mA, allowing it to measure a wide variety of AC currents with precision. It calculates both average (AVG) and true RMS values, offering engineers more accurate diagnostics, especially for fluctuating signals in motor-driven systems.
Its high-speed Sigma Delta (ΣΔ) A/D conversion provides real-time updates every 16.6ms, helping users monitor dynamic loads without delay. The unit operates on a 100–240VAC 50/60Hz power supply and delivers display accuracy of ±0.3% F.S. ±3 digits at 23°C, with reliable performance even in wider ambient temperature conditions (-10°C to 50°C). It is equipped with double/reinforced insulation and meets a 1kV dielectric strength between power and input terminals for enhanced electrical safety.
A built-in indicator output enables status alerts or threshold-based signaling. Its compact body (≈134g) and IP56-rated front panel make it suitable for dusty or humid production floors. With an ambient humidity tolerance of 35–85% RH, this panel meter is built to last in challenging electrical environments. Autonics ensures that each unit is tested for industrial-grade performance and long-term durability. For more models in this series, you can visit the Autonics Panel Meters collection or explore additional solutions at the Autonics Sensors and Controllers page.
For junior engineers and engineering students, the meter offers a clear understanding of how industrial AC current behaves across various load conditions. It helps them gain real-world experience with current loops, measurement accuracy, and the impact of frequency variation. The Autonics MT4Y-AA-4N is a go-to solution for OEMs, system integrators, and plant engineers looking to upgrade to high-precision, compact display solutions that meet modern control standards.




