With the OT-03 Maverick Oven-Chek Digital Oven Thermometer you can know the exact temperature of your oven throughout the entire cooking process without ever having to open the oven door. Oven temperatures can vary significantly from the set temperature showing on the oven dial. The Oven-Chek OT-03 gives you the average temperature of the oven during the time food has been cooking, after the initial warm-up period. Audible alerts sound and visible alerts flash when the oven is too hot or not hot enough. The OT-03's 20-hour countdown/count-up timer lets you set your cooking time and tells you when your food is done.

The OT-03 is unique in that it differs from older oven thermometers that only show the temperature at the time of measurement. This thermometer takes readings every 10 seconds and averages them from the time your oven reaches 30°F below its set temperature. With the OT-03, it is now possible to know the actual temperature at which you have been baking or roasting for a specific period of time. Another benefit of the OT-03 is that it can be viewed without opening the oven door, which can be extremely important during baking because an open door can reduce the temperature in the oven by more than 100°F and disturb the baking cycle.

The OT-03's three-line LCD panel shows the actual oven temperature average on the top line, the alert temperature (that you set) on the middle line, and the timer setting on the bottom line. Just to the left of the oven temperature are the above-temp alert icon, the below-temp alert icon, and the OPTIMAL icon. Just to the right of the alert temperature in the middle line is the alert-on icon.

The 20-hour timer can be set to count up simply by clearing the timer and pressing the START/STOP button on the top of the unit. To count down, set the hours, minutes, and seconds and press the START/STOP button. When the timer reaches 00:00:00, an audible alert beeps and a TIME’S-UP icon flashes.

For example, if you are baking a cake for 45 minutes at 350°F, you would do the following:

• Set your oven to 350°F.

• Mount the probe to the oven rack by means of its stainless steel clip, and route the wire out of the oven and attach it to the main unit.

• Power up the main unit (set POWER switch to ON) and press the + or – button so that a 350°F alert temperature is displayed in the middle line of the LCD panel.

• Slide the ALERT switch to ON. The ALERT ON icon appears.

• Press the MIN button until the timer displays 45 minutes and then start the timer. "LO” will be displayed for the oven temperature (top line) until the temperature rises above 122°F. If the temperature of the probe rises above 572 °F, the unit displays “HI”. When the oven temperature reaches 320°F (30° below the alert temperature) the ALERT ON icon flashes and the unit beeps three times. The OT-03’s top line now displays the actual average oven temperature, updated every 10 seconds.

If during baking the average oven temperature goes below 335°F or above 365°F for at least 30 seconds, the appropriate alert icon flashes and the unit beeps. If the average oven temperature is below, you will need to turn your oven up, and if it is above, you will need to turn your oven down. Pressing the START/STOP button temporarily stops the beeping. As long as the average oven temperature remains out of range, the unit will beep for 5 seconds every minute. The flashing of the alert icon and the beeping stop when the average oven temperature is back in range. After the 45 minutes is up, the timer beeps and flashes to tell you that your cake is done. Again, press the START/STOP button to stop the beeping and flashing.

The OT-03 offers three convenient mounting options. It can be hung on a wall via the keyhole slot in the mounting bracket on back of the unit. It can be mounted upright by removing the bracket (which doubles as a table stand) and attaching it to the bottom of the unit. Also. it can adhere to an iron or steel surface by means of its double magnets (accessible by removing the bracket from the back).

The OT-03 is powered by one AAA (1.5V) battery, which is included and preinstalled. Before using the OT-03, you'll need to remove the mounting bracket, open the battery compartment, and remove the insulating strip at the battery's positive terminal. The battery included with the OT-03 is a carbon-zinc heavy duty battery, but when replacement becomes necessary, we recommend an alkaline battery. The OT-03 is covered by a manufacturer's 1-year limited warranty..

Cautions:

• Do not use the stainless steel probe and wire in microwave ovens.

• Do not use the probe sensor and wire above 482°F for more than 4 hours because doing so will deteriorate the wire.

• Do not expose the main unit to direct heat or water.

• Always wear a heat-resistant glove to handle the probe or wire during or after cooking.

• Do not submerge the main unit in water. Clean it with a damp cloth instead.

• Clean the probe after each use, but do not submerge it in water.

Features:

• Easy-to-read three-line display shows oven temperature, alert temperature, and timer setting plus all indicator icons.
• Temperature measuring range of 122°F to 572°F (50°C to 300°C).
• Temperatures can be displayed in °F or °C.
• Factory-set alert temperature of 300°F can be adjusted up or down by the user in 1° increments.
• Main unit calculates average oven temperature and updates it every 10 seconds over the entire cooking process (beginning at the time the oven reaches 122°F).
• Audible alerts sound and visible alerts flash in the display when oven temperature goes 15°F above or below the set alert temperature.
• Alert duration is 30 seconds unless manually turned off with START/STOP button.
• 20-hour countdown /count up timer.
• Stainless steel temperature probe secures to oven racks with the included stainless steel clip.
• Three mounting options: stand upright, magnets, or wall-hanging bracket.
• The required AAA (1.5V) battery is included and preinstalled.

Dimensions:

• Main unit:
  • Height: 4-1/2 inches (114 mm)
  • Width: 2-7/8 inches (73 mm)
  • Thickness: 3/4 inch (19 mm)
• Probe sensor and wire:
  • Probe length: 2-1/4 inches (57 mm)
  • Wire length: 40 inches (1016 mm)