24″ is long enough for most mash tuns to check temperature without any concern of getting the thermometer body wet. I have both of these. See: A Look At: 12″ and 24″ Digital Thermometers from ThermoWorks
As of this posting, the 24″ version is marked down $20 to $29 while the 12″ is marked down $14 to $25. Check each product page for up to the minute price and availability.
Want to save another 10%? Save 10% an Additional 10% on ThermoWorks Purchases
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