
Gun-Type Professional
Infrared Thermometer
MODEL: ST 653
Instruction
Manual

Gun-Type Professional
Infrared Thermometer
Instruction
Manual

Table Content
1.Product Introduction
1-1 Features
1-2 Applications
2.Safety Information
2-1 Cautions
2-2 Safety symbols
3.Specifications
4.Operation Instructions
4-1 Quick Start
4-2
Unit Diagram
4-3 C/ F and Battery Change
4-4
Advance Function
5.Techniques of Infrared Thermometer
5-1 Field of view(FOV) ratio
5-2 Emissivity
6.Maintenance
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Gun-Type Professional Infrared Thermometer

1.Product Introduction
Thank you for purchasing this infrared thermometer.
The Infrared Thermometer is a non-contact infrared
temperature measuring instrument. To measure a
temperature, point the unit at the object until the
temperature is read, pull the measuring trigger and
hold.Make sure the target area is larger than the unit's
spot size. For large target objects assure you are within
target distance.
1-1 Features
Adjustable emissivity from 0.1 to 1.00 in 0.01 steps.
Ultra low power consumption in shutdown mode.
Extended long time measuring reliability.
Laser sighting On/Off is switchable.
Backlit LCD display.
C or F selectable.
Electronic trigger lock.
Temperature data storage.
Audible alarms
1-2 Applications
Electrical troubleshooting.
Automotive repair and maintenance.
Air conditioner.
Science experiment.
Manufacturing processes of semiconductor
technology.
Test terminals on circuits.
Food safety and processing.
Perform HVAC energy audits.
Gun-Type Professional Infrared Thermometer 1