Simultaneously Displays Internal and External Temperature and Relative Humidity. The remote ambient temperature/relative humidity sensor is mounted on a cord over 4-ft long. Place the highly accurate sensor inside a desiccator, refrigerator, drying or other environmental chamber and view simultaneous displays of temperature and relative humidity outside on the large LCD display. Comes with 1 AAA battery which lasts a full year.

Features & Specifications:

• Large Display- simultaneously monitors both temperature and humidity on an extra-large 3-3/16 x 2½" dual display which can be read from across a room
• Recall min/max temperature and min/max humidity readings over any time period or have it automatically reset itself every 24 hours
• °C and °F selectable
• Wall mounted or free standing
• Inside Temperature: Range 32 to 122°F (0 to 50°C) | Resolution 0.1°F or C | Accuracy ±2°F (±1°C)
• Outside Temperature: Range -58 to 158°F (-50 to 70°C) | Resolution 0.1°F or C | Accuracy ±2°F (±1°C)
• RH: Range 10 to 99% | Resolution 1% | Accuracy ±5%
• 5 Year Warranty
• N.I.S.T. Traceable Calibration Certificate