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Digital Thermometer for Coffee Roasting with K-type Thermocouple

This low cost Digital Thermometer with a thermocouple wire probe is a simple and effective way to monitor temperatures in a roaster. Especially when snaking a flexible wire into the roast chamber, it is easier than drilling holes for a rigid thermometer shaft.

This palm-sized unit accepts K-type thermocouples of any kind and also features an ambient temperature sensor built-in. It's a compact unit that has some cool features making it very useful for DIY coffee roasting projects. AAA batteries not included.

$18.50
In stock
We had some trouble sourcing a reasonably priced digital thermometer so we went directly to the factory to get this one. It's a compact unit that has some cool features making it very useful for DIY coffee roasting projects. You can find a useful article about adding a thermometer to your roaster or air popper here
 
This palm-sized unit accepts K-type thermocouples of any kind and also features an ambient temperature sensor built into the unit, expanding its usefulness. The ambient temperature is automatically displayed when the unit is on and no thermocouple is plugged into the jack.
 
We tested the unit for accuracy and it performed well. It was spot on for boiling water, 212F at sea level. Move the switch to the left if you prefer centigrade or the the right for Fahrenheit.
 
The K-type thermocouple has a range much greater than that of coffee roasting, although thermocouple beads (the small sensing tip of the wire) tend not to last as long with those extreme temperatures. "Raw" thermocouples like this, where the bead is directly exposed, are the best for quick and accurate measurements. We use these in all our roasters, even our large 12 Kg Probat. But they need replacing every so often, and we will stock spares of these soon.
 
Two things you should know.  Uses 2 x AAA batteries. Our latest DOSE NOT include shipment of  the batteries.
1. You can use also your own rechargeables like I do. This does NOT take the boxy 9 volt battery like most digital thermometers do. Those are expensive! It just needs two standard AAAs.
2. You need a fine Phillips screwdriver to open the battery compartment. It can open with a jewelers size, but actually it opens with the standard #01 size too. No biggie really. A pointy knife tip will work too.