
Digital intelligent single-phase voltage/current meter is suitable for measuring and displaying electrical parameters of current and voltage in power grids and automation systems. It offers intuitive display of system primary side operating parameters with good parameter performance and vibration resistance, featuring high accuracy and stability. It can directly replace the existing pointer-type meters.
Optional instrument measurement functions: (1) Single-phase voltage meter (2) Single-phase current meter
Product Features
Real-time Monitoring: Single-phase Voltage or Current
LED Digital Display
Power: AC/DC 85-270V, wide range power input, adaptable to various power environments, flexible application
Application Fields: Industrial Manufacturing, Commercial Buildings, Complete Plants, Substation, Public Facilities, etc.
Customization: We offer logo, appearance, and feature customization services for businesses.
Technical Specifications
| Performance | Parameters | ||
| Input Enter Measurement Quantity Visible Please provide the Chinese content to be translated. | Internet | Single-phase | |
| Voltage | Rated Value | AC25~500V | |
| Overload | Continuously: 1.2x; Instantly: 10x/10 sec | ||
| Power Consumption | 1VA (per phase) | ||
| Impedance | >500kΩ | ||
| Accuracy | RMS Measurement, Accuracy Grade 0.5 | ||
| Electric current | Rated Value | AC25mA~5A | |
| Overload | Continuous: 1.2x; Instantaneous: 10x/10s | ||
| Power Consumption | <0.4VA (per phase) | ||
| Impedance | <2mΩ | ||
| Accuracy | RMS Measurement, Accuracy Grade 0.5 | ||
| Power Supply | Scope of Work | AC 220V±20% | |
| Power Consumption | ≤5VA | ||
| Output | Digital Interface | RS-485, MODBUS RTU protocol | |
| Environmental | Work Environment | -10~55℃ | |
| Storage Environment | -20~75℃ | ||
| Safety | Pressure-resistant | Input/Power > 2kV, Input/Output > 2kV, Power/Output > 1kV | |
| Insulation | Input, output, power to housing > 50MΩ | ||
Product Selection
Model Product Features | YN183I-9K1 | YN183I-3K1 | YN183I-AK1 | YN183U-9K1 | YN183U-3K1 | YN183U-AK1 | |
| Measurement Parameters | Single-phase voltage | √ | √ | √ | |||
| Single-phase current | √ | √ | √ | ||||
| Communication | RS485 | Optional accessories | Optional accessories | Optional accessories | Optional accessories | Optional accessories | Optional accessories |
| Dimensions | 96*96mm | 80*80mm | 72*72mm | 96*96mm | 80*80mm | 72*72mm | |
| Hole dimensions | 91*91mm | 76*76mm | 67*67mm | 91*91mm | 76*76mm | 67*67mm | |
| Note: Other sizes or DI, DO, AO functions of the YN194 series can be produced. | |||||||
Dimensions and wiring diagram

Panel Size (L x H) | Hole Size (S x Y) | Overall Length (N) |
96*96 | 91*91 | 45 |
80*80 | 76*76 | 45 |
72*72 | 67*67 | 45 |
Installation Steps:
Remove the side installation card from the meter.
2) Drill a hole at the installation location with the corresponding hole size
3) Insert the gauge into the hole, reattach the mounting bracket to the meter from the back, and secure it.

Digital intelligent single-phase voltage/current meter is suitable for measuring and displaying electrical parameters of current and voltage in power grids and automation systems. It offers intuitive display of system primary side operating parameters with good parameter performance and vibration resistance, featuring high accuracy and stability. It can directly replace the existing pointer-type meters.
Optional instrument measurement functions: (1) Single-phase voltage meter (2) Single-phase current meter
Product Features
Real-time Monitoring: Single-phase Voltage or Current
LED Digital Display
Power: AC/DC 85-270V, wide range power input, adaptable to various power environments, flexible application
Application Fields: Industrial Manufacturing, Commercial Buildings, Complete Plants, Substation, Public Facilities, etc.
Customization: We offer logo, appearance, and feature customization services for businesses.
Technical Specifications
| Performance | Parameters | ||
| Input Enter Measurement Quantity Visible Please provide the Chinese content to be translated. | Internet | Single-phase | |
| Voltage | Rated Value | AC25~500V | |
| Overload | Continuously: 1.2x; Instantly: 10x/10 sec | ||
| Power Consumption | 1VA (per phase) | ||
| Impedance | >500kΩ | ||
| Accuracy | RMS Measurement, Accuracy Grade 0.5 | ||
| Electric current | Rated Value | AC25mA~5A | |
| Overload | Continuous: 1.2x; Instantaneous: 10x/10s | ||
| Power Consumption | <0.4VA (per phase) | ||
| Impedance | <2mΩ | ||
| Accuracy | RMS Measurement, Accuracy Grade 0.5 | ||
| Power Supply | Scope of Work | AC 220V±20% | |
| Power Consumption | ≤5VA | ||
| Output | Digital Interface | RS-485, MODBUS RTU protocol | |
| Environmental | Work Environment | -10~55℃ | |
| Storage Environment | -20~75℃ | ||
| Safety | Pressure-resistant | Input/Power > 2kV, Input/Output > 2kV, Power/Output > 1kV | |
| Insulation | Input, output, power to housing > 50MΩ | ||
Product Selection
Model Product Features | YN183I-9K1 | YN183I-3K1 | YN183I-AK1 | YN183U-9K1 | YN183U-3K1 | YN183U-AK1 | |
| Measurement Parameters | Single-phase voltage | √ | √ | √ | |||
| Single-phase current | √ | √ | √ | ||||
| Communication | RS485 | Optional accessories | Optional accessories | Optional accessories | Optional accessories | Optional accessories | Optional accessories |
| Dimensions | 96*96mm | 80*80mm | 72*72mm | 96*96mm | 80*80mm | 72*72mm | |
| Hole dimensions | 91*91mm | 76*76mm | 67*67mm | 91*91mm | 76*76mm | 67*67mm | |
| Note: Other sizes or DI, DO, AO functions of the YN194 series can be produced. | |||||||
Dimensions and wiring diagram

Panel Size (L x H) | Hole Size (S x Y) | Overall Length (N) |
96*96 | 91*91 | 45 |
80*80 | 76*76 | 45 |
72*72 | 67*67 | 45 |
Installation Steps:
Remove the side installation card from the meter.
2) Drill a hole at the installation location with the corresponding hole size
3) Insert the gauge into the hole, reattach the mounting bracket to the meter from the back, and secure it.
| 品牌: | Yongnuo Electrical |
| Model: | Customization available |
| Region: | National 1 |
| Brand: | Yongnuo Electrical |
| 单价: | 电议 |
| 最小起订Quantity: | |
| 供货总Quantity: | |
| 有效期至: | 长期有效 |
| 最后更新: | 2025-03-13 17:42 |