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Thermalert 4.0 in plastic applications

Thermalert® 4.0 Series Pyrometer

Infrared Temperature Solutions

Thermalert 4.0 Pyrometer - Control Engineering Engineers' Choice Awards Finalist 2019
Thermalert 4.0 Pyrometer with housing
DTMD software screenshot
Thermalert 4.0 Pyrometer - Control Engineering Engineers' Choice Awards Finalist 2019
Thermalert 4.0 Pyrometer with housing
DTMD software screenshot
Key Features 
Conforms to Industry 4.0 standards
Integrated laser sighting
Galvanic isolated outputs
Plastic lens option for food application
Analog input for ambient compensation and adjusting emissivity setting
USB for easy setup
Simple, two-wire or digital installation
Backward compatibility to old Raytek® and Ircon® in class sensors and accessories
Fieldbus interface options: Ethernet, EtherNet / IP and PROFINET IO
Technical Specifications 
  • Wide temperature ranges from -40 °C to 2300 °C (-40 ºF to 4172 °F)
  • Advanced signal processing
  • Wide choice of focus distances
Spot Size Calculator: 
Download Apps: 

Download from the iOS AppStore Download from GooglePlay Download from the Windows Store

Product Overview

The Thermalert 4.0 series of integrated infrared temperature sensors provide accurate temperature measurement for a wide variety of process control applications.  These pyrometers conform to Industry 4.0 standards, combine innovative digital technology and standard two-wire installation for all setups. With various types of communications, the Thermalert 4.0 IR sensor with laser aiming, provides the features you need to control your process in a compact, integrated package that is easy to install and operate. 

DataTemp® Multidrop Software

DataTemp® Multidrop software provides you with the tools you need to configure your sensors - then monitor temperatures on a real-time graphical display. The bar graph feature shows temperature profiles across a web or at various spots along a process. Use the program to record and archive your process temperatures. High and low alarms are shown, making it easy to identify out of range conditions.


A wide variety of options and accessories are available to customize the installation of your Thermalert 4.0 sensors. Lens protectors and air purge collars offer protection in harsh environments. The water-/air-cooled housings can be specified for operation in ambient temperatures up to 175°C (315°F). For extremely harsh environments, the ThermoJacket is recommended. This rugged cast aluminum housing protects the sensors in ambient temperatures to 315 °C (600 °F). It completely encloses the sensor, combining thermal and mechanical protection with air purging of the lens. The Thermalert 4.0 sensor can be installed or removed while the ThermoJacket is in its mounted position.

► Access your Spot Size Calculator here

Model / Spectral Response Temperature Range Optical Resolution Applications
8-14 µm
-40 to 1000 ºC
-40 to 1832 ºF
up to 70:1
Low temperature applications, such as thick plastics, asphalt, carpeting, coated paper, thermoforming,food;
coke, coal, cement
5 µm
250 to 2250 ºC
482 to 4082 ºF
up to 70:1
Glass surface temperature for bending, tempering, annealing and sealing
7.9 µm
300 to 900 ºC
(572 to 1652 ºF)
up to 70:1
Ultra-thin drawn glass
3.43 µm
25 to 450 ºC
(77 to 842 ºF)
Extrusion and converting of thin films: polyethylene, polypropylene, and polystyrene
7.9 µm
10°C to 360°C
50°F to 680°F
Production and converting of films of polyester (PET), fluoroplastic, Teflon®, acrylic, nylon (polyamide)
3.9 µm
200°C to 2250°C
392°F to 4082°F
up to 70:1
Furnace refractory, flame hardening and brazing
2.2 µm
500°C to 2000°C
932°F to 3632°F
Ferrous and nonferrous metals, induction heating, furnaces, laboratory research
1 µm
500°C to 2300°C
932°F to 4172°F
Semiconductor, metals forging, molten glass
1.6 µm
250°C to 1400°C
482°F to 2552°F
Non ferrous and unoxidized metals, galvanizing lines and steel annealing
2.3 µm
100°C to 600°C
212°F to 1112°F
Rolling mills, wire coating and annealing, laser welding, plastic tubing extensions
Get more information about this product
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