Introducing the Model 305 Digital Thermometer, a portable hand held and compact digital thermometer designed to use an external K type thermocouple as a temperature sensor.

Temperature indication follows N.I.S.T and I.E.C. 584 temperature/voltage tables for K type thermocouples.

Specifications
Temperature Scale: Celsius or Fahrenheit, selected by user.
Measurement Range: -50°C to 1300°C (-58°F to 2000°F).
Resolution: 1°C or F, 0.1°C or 0.1°F.
Accuracy: Accuracy is specified for operating temperatures over the range of 18°C to 28°C (68°F to 82°F), for 1 year, not including thermocouple error. ((0.3% rdg +1 C) -50°C to 1000°C. ((0.5% rdg +1 C) -1000°C to 1300°C. ((0.3% rdg +2 F) -58°F to 2000°F.
Temperature Coefficient: 0.1 times the applicable accuracy specifications per C from 0°C to 18°C and 28°C and 50°C (32°F to 64°F and 82°F to 122°F).
Input Protection: 60V dc or 24V rms ac maximum input voltage on any combination of input pins.
Reading Rate: 2.5 times per second.
Input Connector: Accepts standard miniature thermocouple connectors (flat blades spaced 7.9 mm, center to center).
Ambient Operating Range: 0°C to 50°C (32°F to 122°F).
Storage Temperature: -20°C to 60°C (-4°F to 140°F).
Relative Humidity:
  • 0% to 80% (0°C to 35°C) (32°F to 95°F).
  • 0% to 70% (35°C to 50°C) (95°F to 122°F).
Display: 3 1/2 digit liquid crystal display (LCD) with maximum reading of 1999.
Battery: Standard (9V battery (NEDA 1604, IEC 6F22).
Battery Life: 200 hours typical with carbon zinc battery.
Dimensions: 147 mm (H) ( 70mm (W) ( 39mm (D).
Weight 7.4 0z (210g).
Price: $79.00 plus shipping. K type thermocouples sold separately.