Analog Clamp Multimeter BLOW 51-505 — Mini ammeter with 5 A range and shunt

The BLOW 51-505 analog clamp multimeter is a compact ammeter designed for measuring direct currents up to 5 A using the supplied shunt. Its clamp-style, mini form factor and needle indicator allow quick, real-time readings in confined spaces and during portable inspections. The instrument is intended for basic electrical troubleshooting, appliance checks, and routine maintenance where straightforward current measurement is required.

Advantages

This mini ammeter features a mechanical needle display that gives immediate visual feedback without the need for batteries or complex setup. The included shunt enables accurate 5 A range measurements, while the clamp and small housing make it easy to position on wiring or components in narrow installations. The device’s simple construction and analog reading reduce susceptibility to transient digital artifacts and provide intuitive interpretation of current levels.

Suitable for

• Basic electrical troubleshooting and fault finding
• Appliance current checks and verification
• Maintenance inspections in tight or confined spaces
• Portable field measurements and quick on-site diagnostics

Key specifications

• Measurement type: analog clamp ammeter with external shunt
• Current range: up to 5 A (with supplied shunt)
• Display: mechanical needle pointer for real-time reading
• Form factor: compact, clamp-style portable instrument
• Power: passive needle movement (no onboard digital electronics required for indication)

How to use

To measure current, place the supplied shunt in series with the circuit under test according to standard safety practice, then clamp the instrument or position it as required to read the needle. Ensure connections are secure and that the measured conductor and surrounding area are de-energized when making physical connections. Observe the needle movement to read the current value within the 5 A range; if readings approach the instrument limits, remove power and reconfigure the measurement to prevent overload.

Usage recommendations

Use the multimeter for low-current checks and routine inspections. Verify the shunt rating before connecting to a circuit, avoid exposure to moisture and extreme temperatures, and store the instrument in a dry, dust-free place. For safety, follow local electrical regulations and disconnect power when installing or removing the shunt.