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The GM-550 is an industrial-grade infrared thermometer gun designed for fast, contactless temperature measurement from –50°C to 550°C. Featuring a bright backlit LCD, laser targeting and high-accuracy optics, it is ideal for HVAC, automotive repair, electrical work and home safety checks.
Simply aim, pull the trigger and read the temperature instantly — perfect for checking engines, radiators, bearings, heaters, insulation, ovens and more.
UK stock with fast delivery and VAT invoice included.
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Fast, reliable delivery — UK 2–4 days, express 1–2 days. International tracked delivery available.
30-day return & 12-month UK warranty on all ZOYI instruments.
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Why choose the ZOYI GM-550
The GM-550 is designed for accurate surface-temperature measurement in demanding environments. With a wide temperature range and long-distance capability, it’s ideal for professionals checking motors, bearings, panels, HVAC systems or any surface where non-contact measurement is required.
Key features
Measurement range: –50 °C to 550 °C (–58 °F to 1022 °F)
Repeatability: ±1 % ±1 °C (greater) / ±1 % ±1.8 °F (greater)
Distance to spot ratio: 12 : 1
Adjustable emissivity: 0.10 – 1.00
Spectral response: 6–14 µm
Laser target pointer, backlight display, auto power-off and data hold
Modes: Max, Min, Avg, Difference (Δ), Temperature Offset
Size: 155 × 95 × 43 mm; ABS plastic housing for durability
Supplied with 2 × AAA batteries (or as specified) and user manual
What’s in the box
ZOYI GM-550 IR thermometer
User manual
2 × AAA batteries (depending region/model)
UK shipping & warranty
UK stock, VAT invoice and 12-month warranty.
Data sheet
Specific References
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