Field Instruments

Product Overview

The Fluke 566 Infrared & Contact Thermometer is a versatile, industrial-grade temperature measurement tool that combines non-contact infrared measurement with contact temperature sensing using K-type thermocouples. Designed for tough electrical, mechanical, and industrial environments, the Fluke 566 enables safe, accurate temperature measurement without shutting down equipment.

With its intuitive soft-key interface, adjustable emissivity, and rugged ergonomic design, the Fluke 566 is ideal for maintenance technicians, electricians, HVAC professionals, and reliability engineers who require dependable temperature diagnostics in daily operations.

Key Features

• Dual Measurement Capability: Infrared and contact (K-type thermocouple) temperature measurement
• Wide Temperature Range: IR measurement from –40 °C to +650 °C
• 30:1 Distance-to-Spot Ratio: Accurate measurements from a safe working distance
• High Accuracy: ±1 % of reading or ±1 °C (whichever is greater)
• Adjustable Emissivity: Digital adjustment (0.10 to 1.00) with built-in material table
• Advanced Display Functions: Min / Max / Average / Differential temperature readings
• Audible & Visual Alarms: Quickly identify temperatures outside set limits
• Soft-Key Menu Interface: Easy navigation of advanced functions
• Rugged Industrial Design: Built for harsh electrical and mechanical environments
• Multi-Language Interface: User-selectable menu languages

Technical Specifications

Manufacturer: Fluke
Model: 566
Type: Infrared & Contact Thermometer

Infrared Measurement

Temperature Range: –40 °C to +650 °C
Accuracy:
• ≥ 0 °C: ±1 % or ±1 °C (whichever is greater)
• < 0 °C: ±(1 °C + 0.1 °/1 °C)

Distance-to-Spot Ratio: 30:1
Minimum Spot Size: 19 mm
Response Time: < 500 ms
Spectral Response: 8 µm to 14 µm
Emissivity: Adjustable from 0.10 to 1.00
Display Resolution: 0.1 °C

Contact Measurement (K-Type)

Temperature Range: –270 °C to +1372 °C
Accuracy: ±1 % or ±1 °C (whichever is greater)
Resolution: 0.1 °C

Display

• Dot-matrix LCD display (98 × 96 pixels)
• Two-level backlight (normal and extra-bright)
• Soft-key navigation with function menus

Data & Functions

• Min / Max / Average / Differential temperature display
• Audible and two-color visual alarms
• Trigger lock for continuous measurements
• Data storage (up to 20 readings)

Power Supply

• 2 × AA batteries
• Battery life:
– Up to 12 hours (laser and backlight on)
– Up to 100 hours (laser and backlight off)

Environmental & Mechanical

• Operating temperature: 0 °C to +50 °C
• Storage temperature: –20 °C to +60 °C
• Relative humidity: 10 % to 90 % RH (non-condensing)
• Weight: Approx. 0.32 kg
• Ergonomic, rugged handheld design

Applications

• Electrical equipment inspections
• Mechanical equipment diagnostics
• HVAC system troubleshooting
• Industrial process temperature monitoring
• Preventive and predictive maintenance
• Reliability and condition monitoring programs

Why Buy from FieldInstruments.lk?

• 100 % genuine Fluke instruments with manufacturer warranty
• Competitive pricing and fast island-wide delivery
• Expert local technical support and application guidance
• Reliable after-sales service and calibration assistance

The Fluke 566 Infrared & Contact Thermometer delivers accuracy, flexibility, and rugged performance, making it an excellent choice for professionals who need reliable temperature measurement in demanding industrial environments.

Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk