Handheld infrared thermometer Raynger 3i Plus for high-temperature applications
Raynger 3i Plus handheld thermometer for flexible monitoring of critical processes and quick
verification of fixed sensors

Measurement and testing

Handheld infrared thermometer Raynger 3i Plus for high-temperature applications

10 Feb, 2015

Published over 11 years ago. See the latest and most current information on Measurement and testing.

The Raynger 3i Plus 1M and 2M models by Raytek (Germany) measure infrared radiation in the shortwave spectrum (1 μm and 1.6μm) and provide high precision ( +/- 0.5%, 1 °C). Thanks to the superior resolution of 250:1, critical plant parts and products can be reliably monitored from longer distances. For exact aiming, the measurement spot is highlighted with two laser beams. Moreover, even red hot objects can now be easily targeted by means of a new “Red Dot” scope sighting function (patent pending). Additionally, the use of a “Red Nose” heat-resistant warning detector and alarm reduces the risk of the sensor overheating — minimizing repair costs — while averting costly accidents and ensuring operator safety. 

The robust handheld devices withstand drops of 1 m. A powerful firmware supports display, analysis, and trending within the device. Up to 4,900 data points can be recorded. The scope of delivery furthermore includes the Raytek DataTemp Windows PC software which supports real-time communication and further data processing. In addition to on-board USB and Bluetooth interfaces, a mobile app allows for comfortable data storage and sharing. The display can be set to degrees Celsius or Fahrenheit. The devices are equipped with a Lithium-ion battery that can be easily recharged and allow an operational cycle of 24 hours.

PIN 27.2 Apr/May 2026

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