Infrared non-contact thermometers for process temperature measurements.



  • Infrared for non-contact surface temperature measurement
  • Double laser pointer
  • Alarm when Min/Max Limit is exceeded
  • Factory calibration certificate

Non-contact Thermometers Product Description

The TFI 550 non-contact thermometers are suited to a multitude of measurement and control tasks in industry, trade and crafts. The non-contact thermometers are simple and efficient to use, all you have to do is aim the thermometer and press the measurement key. The non-contact thermometer’s optics record the emitted, reflected, and absorbed heat radiation which is bundled and focused on a detector. The infrared non-contact thermometer’s electronics change this information into a temperature value which appears on the display. The non-contact thermometer’s built in laser can be used to ensure that you are targeting the correct measurement point.

Temperature values on the infrared non-contact thermometer can be switched between celsius and fahrenheit. The temperature measurement can also be locked to display on the non-contact thermometer’s LCD screen for 60 minutes or as long as lock mode button is depressed.

Non-contact thermometer measurements
The ideal distance in most applications for the infrared non-contact thermometers is from 3.9 and 7.9 inches (100 and 200 mm); in this case, the size of the measurement spot equals approx. 0.1 to 0.3 inches (3 to 7 mm).  As the distance (D) from the object increases, the spot size (S) of the area measured by the non-contact thermometer becomes larger.  Make sure that the target is larger than the infrared non-contact thermometer’s spot size.  The infrared non-contact thermometer’s two laser points are the reference for the target spot size.  The smaller the target, the closer you should hold the infrared non-contact thermometer to it.  When accuracy is critical, make sure the target is at least twice as large as the infrared non-contact thermometer’s spot size.


Non-contact thermometer emissivity
Inaccurate readings will result from using the infrared non-contact thermometers to measure shiny or polished metal surfaces like stainless steel or aluminum.  To compensate, cover the surface to be measured with masking tape or flat black paint.  Allow time for the tape to reach the same temperature as the material underneath it.  Use the non-contact thermometer to measure the temperature of the tape or painted surface.  When measuring a grill, for example, aim the infrared non-contact thermometer at a portion of the grill that has been blackened by the high temperatures.  The non-contact thermometers cannot measure through transparent surfaces such as glass or plastic.  The infrared non-contact thermometers will measure the surface temperature of the transparent surface instead.  Steam, dust, smoke, etc., can prevent accurate measurement by obstructing the non-contact thermometer’s optics.  Hold the infrared non-contact thermometer back and at an angle to ensure the most accurate measurements.

Non-contact Thermometers Applications

The TFI 550 Non-Contact Thermometer is a handy temperature measuring instrument for various measure and control tasks in the trade, the industry, and the laboratory. Applications for the infrared non-contact thermometer include fast, simple temperature measurements of liquids, motors, pipes, food, storage containers, received goods, supermarket areas, kitchens, and refrigerated rooms. NOTE: When measuring liquid products, be sure to stir the product vigorously while using the infrared non-contact thermometer to measure the surface of the liquid. Note: DO NOT submerge non-contact thermometers in water.

Non-contact Thermometers Specifications

Measurement range: -76 to 1400°F (-60 to +760°C)
     ±2°F (±1°C) in environmental temperature of 77°F (25°C) and an object temperature of 59 to 95 °F (+15 to +35°C)
     ±2% of the measured value or ±3.5°F (±2°C) (whichever is higher) over the entire measurement range with an environmental temperature of 70 to 77°F (20 to 26°C)
Resolution: 0.1°F (0.1°C) at -83.2 to 1831.8°F (-64 to 999.9°C), otherwise 2°F (1°C)
Reaction time (90%): approx. 1 second
Emission factor: 0.1 to 1.0
Ratio of distance to meas. spot: 30:1

Battery life: typically 140 hours (with laser, LED-light, and backlight of display disabled)
Battery: Type AAA, 1.5V
Working temperature: 32 to + 122°F (0 to + 50°C)
Storage temperature: -4.0 to + 252°F (-20 to + 65°C) (store without battery)
Housing material: ABS
IP Rating: IP 20
Wave length: 8-14 um
Certificate: 3 point factory calibration, CE
Dimensions: approx. 7.7×4.8×1.8 in (195x121x46mm)
Weight incl. battery: approx. 9.9 oz. (282g)

Non-contact Thermometers Options

TFI 550 Non-contact Thermometer (PN# 1340-1786)


TLC 730 Handheld Contact or Non-Contact Thermometer (PN# 1340-5730)

EBI-20-T1-Set Temperature/Humidity Datalogger Kit
Includes EBI-20-T datalogger, Winlog.basic software, EBI-20 interface, and USB cable. (PN# 1601-0046)


EBI 100-T101 Temperature Data Logger (PN# 1340-650)

WE700 4-20mA Temperature Sensor (PN# EF0000)

WE710 Flat Surface Temperature Sensor (PN# EFA000)

TFH 610 Handheld Hygro Thermometer (PN# 1340-5610)

WE Weather Sensors