If youre looking for a way to read the temperature of your brew pot, look no further. Our Dial Thermometer can easily monitor the temperature of your boiling brew kettle. No more opening pot lids to check the wort or mash temperatures anymore. This dial thermometer features a 3" dial, a 2" probe and a calibration screw. Perfect for a mash tun or a brew pot. Your pot must have a 3/4" hole. Deep enough for an accurate reading, while not interfering with your mash paddle. Features Material:304 stainless steel Adjustment screw for fine-tuning Seals are all high temp silicone Size: 3" gauge face, 2" probe length, 3/4 thread Temperature shows: 0-220ºF and -10-100ºC Perfect for home brew kettles, stock pots, mash tuns Using boiling water and submersing the probe is the best way to ensure it has an accurate reading. Altitude will effect the boiling temp but should not effect the way the thermometer reads. Package Includes 1 x Brew Thermometer 2 x Silicone O Ring 1 x SS 304 Washer 1 x SS 304 Lock Nut Warm Tips: 1. This dial thermometer needs 1minute begin to test the temperature after put the thermometer into the water 2. Water or liquids needs to cover the stainless flat washer that can test the accurate temperature. 3.To prevent leaking, wrap the 1/2" threads with Teflon tape prior to threading into the port.