Analog Volt Meter BLOW 51-125# – measurement range up to 25 V, analog needle display

BLOW 51-125# is an analog voltmeter with a needle-type display and a measurement range up to 25 V DC. It is intended for basic DC voltage measurements and can be mounted in a panel cutout or used on a test bench. The instrument gives a direct, continuous visual indication of voltage level, suitable for simple monitoring, troubleshooting and educational demonstrations.

Advantages

The analog needle display provides immediate visual feedback without needing power-hungry electronics, allowing quick assessment of voltage trends and fluctuations. Its scale up to 25 V offers appropriate resolution for low-voltage DC systems. The meter’s mechanical pointer is easy to read at a glance, and the simple construction ensures straightforward installation and minimal maintenance.

Suitable for

• Basic DC voltage checks in electronics workshops
• Panel mounting in small equipment and control panels
• Hobby electronics and prototyping
• Repair and diagnostic tasks on low-voltage circuits
• Educational demonstrations and lab exercises

Key specifications

• Measurement type: DC voltage up to 25 V
• Display format: analog needle (pointer)
• Mounting: panel cutout or bench mounting
• Scale: calibrated for direct reading to 25 V
• Operating principle: electromechanical movement for continuous indication

How to use

Install the voltmeter into the appropriate panel cutout or secure it on the bench using the mounting hardware. Connect the meter’s input terminals to the DC circuit under test, observing correct polarity. Read the voltage directly from the calibrated scale where the needle aligns. For stable readings, ensure the measured circuit is not subject to large transient currents or rapid fluctuations during observation.

Usage recommendations

For accurate and safe operation, use the analog voltmeter within its specified DC range and avoid exposure to voltages above 25 V. Ensure connections are clean and secure, and avoid placing the instrument in environments with excessive vibration or moisture. When performing measurements on powered circuits, follow standard electrical safety procedures and disconnect power before installing or removing the meter.