Introduction
Raytek is a company out of Santa Cruz, California who specializes in making infrared, noncontact temperature measurement instruments for industrial, process control, home use, etc. They provide many really neat portable thermometers that can be carried easily in your pocket to take temperatures without having to even touch the item. One of these great devices is the MT4, which I will be reviewing today.

Features

• Temperature Range: 0 - 500F
  
• Temperature Display: Celsius or Fahrenheit
  
• Accuracy: For targets 30 - 500F +/- 2% of reading or +/- 3.5F
  
• Response Time: 500mSec
  
• Operating Range 32 - 120F
  
• Relative Humidity 10% - 95% @ up to 86F
  
• Dimensions 6 x 4 x 1.5 in
  
• Weight: .5lb
  
• Power 9V Alkaline
  
• Batter Life: 12hrs
  
• Distance to Spot Size 6:1