Description
The boiling point of water is often stated to be 212°F, though this is only true at 1 atmosphere of pressure, commonly referred to as sea level. Without weather, atmospheric pressure decreases as elevation increases. But we live in a world with weather, which means atmospheric pressure (even at sea level) changes throughout the day. For example, water will boil at 209.6°F with a pressure of 28.5 inHg. When the pressure rises to 29.25 inHg the boiling point increases to 210.9°F, a difference of 1.3°F. 1.3°F is the difference between 63.6% and 66.9% syrup.
This device measures barometric pressure every second to determine the boiling point of water, no matter the elevation or the weather. Simply connect the included USB C cable a power source (e.g. a phone charger, portable battery pack, or computer). The unit will automatically turn on and display the current barometric pressure (in inches of mercury, or inHg), the boiling point of water in Fahrenheit, and the boiling point of syrup at a density of 66.9%. The temperature probe will measure the current sap temperature and display how many degrees are left until the sap is at the proper temperature for 66.9% syrup. Once the temperature of the sap gets above the boiling point of water the device will estimate the Brix of the sap. When the sap reached the proper density a red light will illuminate and an alarm will beep five times. The alarm can be disable if desired.
The included thermometer probe is highly accurate, though you can further calibrate the unit +/- 2.4°F to suit your setup. The waterproof temperature probe is made from stainless steel and can be scrubbed clean after use. An optional silicon sheathed cable is available that offers greater flexibility in cold weather and is rated to withstand temperatures up to 392°F. You can also replace the standard probe with a threaded probe to connect directly to the evaporator.
These devices were designed and assembled in Plymouth, Connecticut. If you would like your device customized (e.g. to display in Celsius or a different Brix range, just let me know). Includes the digital barometer, a USB C power cable, temperature probe, and operating instructions. A battery powered version is also available here: http://plymouthsugarworks.com/product/maple-digital-barometer-with-probe-battery-powered/
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