Description
The Testo 477 is an advanced electronic handheld LED stroboscope engineered for the precise measurement of rotational speeds and the inspection of high-frequency moving parts. Utilizing Original Engineering from Testo, this instrument allows for non-contact RPM measurement up to 300,000 flashes per minute (FPM), enabling technicians to conduct critical vibration analysis and motion diagnostics without interrupting active industrial processes.
Technical Specifications:
Brand: Testo
Model: 477
Measurement Range: 30 to 300,000 FPM / RPM
Accuracy: ±0.02% of reading
Resolution: 0.1 (30 to 999 FPM) / 1 (1,000 to 300,000 FPM)
Light Source: High-intensity LED array
Protection Rating: IP65
Battery Life: Up to 11 hours
Trigger Interface: Input/Output for external synchronization
Operating Temperature: 0°C to +45°C
Weight: 400g
Industrial Application & Technical Compatibility:
The Testo 477 is purpose-built for harsh industrial environments, featuring an IP65-rated housing that withstands impact, dust, and fluid exposure. It provides seamless Technical Compatibility with external trigger systems for automated inspection lines. Typical applications include monitoring packaging machinery, HVAC fan balancing, textile manufacturing spindles, and automotive drivetrain testing. By identifying micro-vibrations and rotational anomalies early, this stroboscope minimizes unplanned downtime.
Procurement & Lead Time:
Designed for immediate integration into your predictive maintenance protocols, the Testo 477 ensures reliable performance and extended lifecycle value. Contact our procurement team to verify current Lead Time and secure this essential diagnostic tool for your facility.
Key Attributes
Place of origin: Germany
Customized support: OEM, ODM
Brand name: Testo
Warranty: 1 years
Model number: 477
Product name: Testo
Model: 477
Measuring range: 30 to 300000 fpm
Accuracy: 0.02 % of mv
Protection class: IP65
Flash duration: Can be adjusted
Flash color: Approx. 6500 K
Display type: LCD
Maximum current: 50 mA
Power: Electronic
Packaging and Delivery
Selling Units: Single item
Single package size: 32X26X15 cm
Single gross weight: 2.000 kg









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