TM 939 IR Non Contact Thermometer.
51 mm x 32 mm large LCD Display, 15 mm (0.6") digit size
2 in 1, Infrared Thermometer + Thermocouple (Type K/J/T/E/R) thermometer
Infrared thermometer (Non-contact temperature measurement) - 20°C to 650°C (-4°F to 1112°F)
°C, °F Data hold, Memory (Max., Min) Relative measurement, Emissivity adjustment 
(IR thermometer)

• 0.1 degree or 1 degree Resolution

• Exclusive microcomputer circuit, software
  built in linearity correction function instead of the traditional hardware circuit

• Emissivity Adjustment Range of 0.20 to 1.00,
  button on front panel for adjustment

• Red laser light, less than 1 mW, Meet EN60825

• Standard 2 pin thermocouple socket

• Approximately 1 second of sampling time

• Hold function to freeze the display reading value

• Memory function to record the maximum &
  minimum reading

• Offset Adjustment available for IR Thermometer, & Thermocouple Thermometer Adjustment available
  by pushing button on front panel

• Over Indication: Show "- - - -"

• Data Output RS-232 PC serial interface

• Alkaline or heavy duty type power supply DC 9V battery, 006P, MN 1604 (PP3) or equivalent

• Approximately DC 11 mA power consumption
  with laser light off

• Approximately DC 16 mA power consumption
  with laser light on

• Auto Power Off

• Low Battery Indicator

• 0°C to 50°C temperature (32°F to 122°F)

• Less than 80% RH Operating Humidity

• HWD 200 x 68 x 30 mm in size, (7.9 x 2.7 x 1.2 inches)

• Weighs 220 g / 0.48 lb

• Includes: manual