Indicator digital AC voltmeter | Ø22 mm | 50–500 V AC | red | ES-RAD101-22VMS

Technical Specifications

Product type: Digital panel voltmeter / LED indicator
Power supply voltage: AC 50–500 V (AC only)
Rated current: <20 mA
Display color: Red
Brightness: ≥60 cd/m²
Operating frequency range: 2–80 Hz
Electrical lifespan: ≥30,000 operating hours
Mounting hole diameter: 22 mm
Housing material: Plastic
Operating temperature: -25 °C … +55 °C
Protection rating: IP20 (for indoor use)

Features and Benefits

Accurate AC voltage indication from 50 to 500 V allows real-time monitoring of the electrical network.

Bright LED display ensures excellent visibility even in low-light conditions.

Low power consumption (<20 mA) – efficient and reliable operation.

Standard 22 mm mounting size – easy installation in control cabinets, panels, or devices.

High vibration resistance (2–80 Hz) – stable performance under mechanical stress.

Long service life (≥30,000 h), suitable for continuous operation.

Applications

For home users: Ideal for home workshops, generators, or voltage monitoring in electrical enclosures. Helps quickly assess if voltage levels are within safe limits.
For engineers: Used in automation and control cabinets, industrial controllers, and power systems to ensure stable supply voltage and prevent overvoltage or drops.
For electricians: Easy to install in control panels, cabinets, or equipment. The universal 22 mm housing allows quick integration without extra mounting accessories.

Pros

Wide voltage measurement range (50–500 V AC)

Bright red LED display with high contrast

Very low power consumption

Long lifespan (≥30,000 h)

Standard 22 mm mounting size

Reliable performance under vibration

Cons

For AC voltage only – not suitable for DC systems

No voltage adjustment or data storage functions

Not suitable for outdoor use (IP20)