ThermoWorks Therma K Plus with 313-158 Probe Review
Published On: 5/7/2014 Last Modified: 6/13/2025
The ThermoWorks Therma K Plus Kit is an expensive thermometer that exhibits superb accuracy and very rapid response times. The readout cannot be left in the oven/grill while cooking, but cabled probes can, making this a versatile unit that can act as a rapid-read hand-held or an in-food/in-cooker thermometer.
The thermometer can accept any K-type thermocouple probe. The thermometer’s inherent temperature range is –148 to 2501ºF (-100 to 1372ºC), but with the kit probe, the temperature range is a more suitable -58 to 482ºF (-50 to 250ºC). Other probes can extend the range considerably, but our focus here is on food temperature measurements. The unit does not have a water-resistant rating, but otherwise it has all the features one might want: min/max functions, a hold button, a backlight and F/C flexibility. The accuracy is right-on, and this probe reacts almost instantly, going from ice water to boiling water in about 4 seconds. The battery life is so long that you might never need to change them.
The manufacturer’s contact info, including address, telephone number, website and e-mail, is found on the instruction sheet. The thermometer is covered by a 1 year warranty. A certificate of calibration is included.
While this thermometer isn’t cheap, it is well made and performs with the best of them. For these reasons, we give it a Gold medal.
* Temp range is probe dependent.
Click here to order the Thermometer Kit.
Product Information:
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Thermometer Function:Hand Held/Instant Read, Leave in Food, Leave in Cooker
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Item Price :134.00
*Price Subject To Change -
Where to buy (buying from this supplier supports this website):
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Probe:THS-303-158: length: 4" (10cm), diameter: 0.12" (3mm), tip: 0.06" (1.5mm)
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Battery Type:3xAAA (included)
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Battery Life:10,000 hrs
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Safe Operating Range:
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Min & Max Temp:–148 to 2501ºF (-100 to 1372ºC) (probe dependent)
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Display Precision:0.1º
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Actual Temp at 32 Degrees:32.2
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Actual Temp at 130 Degrees:129.6
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Actual Temp at 225 Degrees:225.0
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Actual Temp at 325 Degrees:325.3
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Speed from 32 to 212 Degrees:4
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Speed from 32 to 212 Degrees:4
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Numbers Display Size:0.5" (12mm)
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Water Resistance Rating:
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Weight:4.6oz (130g)
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C/F Switch:Built in CF switch
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Backlight:Built in Backlight
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Adjustable Options:
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Color Options:
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Thermometer Sensor:Thermocouple
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App:No
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Logging:No
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Included:Thermometer, Case, Instructions, Certificate of Calibration
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Available Accessories:Many to choose form - see links
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Alarms:No
Manufacturer:
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