Jumbo Display Thermo-Hygrometer,
Model 13307

Monitor the temperature and relative humidity in greenhouses, walk-in coolers, and cold storage with the Jumbo Display Thermo-Hygrometer, Model 13307. It features a large LCD screen, is °F/°C switchable, minimum/maximum readings memory, freeze alarm setting option and external thermistor probe with extension cable.



  • Humidity Accuracy (Internal): +5% R.H. From 35 to 85 R.H. at 77°F (25°C)
  • Temperature Range: Internal: 32°F TO 122°F (0°C TO 50°C) External Probe: -58°F to 158°F (-50°C to 70°C)
  • Temperature Accuracy: +1.8°F (1°C) from -40°F to 158°F
    (Internal & External) (-40°C to 70°C)
  • External Temperature Sensor: Cable Length: 10”/3 meters; Probe: 30mm (L) x 5mm (dia.) tip.
  • Product Size: 3.85” (W) x 4.33” (H) x .82” (D)(98 mm x 110 mm x 21 mm)
  • Sensor Type: Temperature: Thermistor Humidity: Electronic Capacitance Polymer Film
  • Freeze Alarm Setting: If set, alarm will sound when external temperature is 32°F (0°C)