Product Overview

The REED R7100 is a dual-function tachometer combining both non-contact laser and contact measurement modes. Designed for professionals working with rotating equipment, production lines, conveyors, fans and motors, it offers fast, accurate RPM readings and surface-speed measurements in one compact tool. With built-in memory and a rugged handheld design, the R7100 is ideal for field, plant-floor and maintenance environments.

Key Features

• Dual measurement capability: photo laser mode (RPM) and contact mode (RPM or surface speed in m/min)
• RPM range from 0.5 to 19,999 (contact) and 2.5 to 99,999 (photo)
• Surface-speed measurement range: approx. 0.05 to 1,999.9 m/min
• Built-in laser pointer for accurate non-contact target alignment
• Memory recall of Maximum, Minimum and Last values
• Large 5-digit LCD display and low-battery indicator
• Auto shut-off, rugged handheld design with included accessories (wheel adapter, cone tips, reflective tape, carrying case)
• Ideal for maintenance, quality checks, industrial diagnostics and rotating-equipment monitoring

Technical Specifications

Brand: REED Instruments
Model: R7100
Type: Combination Contact/Laser Photo Tachometer

• RPM Range (Contact): 0.5 to 19,999
• RPM Range (Photo Laser): 2.5 to 99,999
• Surface Speed Range: 0.05 to 1,999.9 m/min
• Resolution:
  • Laser: 0.1 RPM (≤999.9) / 1 RPM (>1000)
  • Contact: 0.1 RPM (≤999.9) / 1 RPM (>1000)
  • Surface: 0.01 m/min (≤99.99) / 0.1 m/min (>100)
• Basic Accuracy: ±(0.05% of reading + 1 digit)
• Target Distance (Photo Mode): approx. 500 mm (1.6 ft)
• Response Time: <1 second
• Sampling Time: ~0.8 sec (over 60 RPM)
• Display: 5-digit LCD
• Power Supply: 4 × AA batteries
• Operating Temperature: 0 to 50 °C (32 to 122 °F)
• Storage Temperature: –20 to 60 °C (–4 to 140 °F)
• Dimensions: 210 × 74 × 37 mm (approx.)
• Weight: 224 g (approx.)

Included Accessories: Reflective tape, large & small cone tip adapters, funnel adapter, wheel adapter, mounting screws, batteries, hard carrying case

Applications

• Measuring RPM of motors, fans, pumps, compressors, rotors
• Surface speed measurement for conveyors, belts, rollers
• Preventive maintenance and equipment diagnostics in manufacturing plants
• Quality assurance and production line speed verification
• Facility maintenance and process equipment troubleshooting

Why Buy from FieldInstruments.lk?

• 100% genuine REED Instruments products with full traceability
• Competitive pricing with fast delivery across Sri Lanka
• Local technical support for instrument setup, usage and calibration
• Trusted supplier for industrial test & measurement equipment
• After-sales service and warranty support

The REED R7100 offers a professional dual-mode tachometer solution—combining non-contact laser and contact measurement in one unit, perfect for maintenance, production and quality-control professionals.

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