From the product description, check product page for current description, price and availability:

Designed specifically for homebrewers, the Tilt Hydrometer & Thermometer monitors both the specific gravity and temperature of your batch while its fermenting without having to open your fermenter and waste your beer for test samples, allowing you to brew more consistent batches of beer and makes each batch much easier to track. Using the Tilt App (Available Here!) you can instantly check on your batches readings using an Apple iPhone/iPad or Android smartphone/tablet. Designed with a high precision temperature sensor and accelerometer, the Tilt monitors your batch with a fine degree of control. The specific gravity is accurate +/- 0.002 within the Tilt’s 0.990 to 1.120 range. The included thermometer is accurate +/- 1 degree F. The increased transmission power of the Tilt gives it better reception and range, allowing it to send data through large, thick-walled fermenters and it will work with most Bluetooth 4.0+ devices. The Tilt was also built with efficiency in mind. The reduced power consumption allows to to use you Tilt batch after batch with the same battery. Each Tilt comes calibrated and ready to use with an included battery. Battery life is 12-24 months depending on usage. Easy to use, the Tilt makes a great addition to any brewhouse. Simply download the app, sanitize your Tilt, drop it into your fermenter, and start taking readings!

The Tilt Hydrometers comes in a rainbow of colors to brighten up your brew supplies, but these colors are not just cosmetic. Use a different color Tilt to monitor multiple batches of beer at the same time. The Tilt App will not read multiple hydrometers of the same color.

From the product description, check product page for current description, price and availability:

Designed specifically for homebrewers, the Tilt Hydrometer & Thermometer monitors both the specific gravity and temperature of your batch while its fermenting without having to open your fermenter and waste your beer for test samples, allowing you to brew more consistent batches of beer and makes each batch much easier to track. Using the Tilt App (Available Here!) you can instantly check on your batches readings using an Apple iPhone/iPad or Android smartphone/tablet. Designed with a high precision temperature sensor and accelerometer, the Tilt monitors your batch with a fine degree of control. The specific gravity is accurate +/- 0.002 within the Tilt’s 0.990 to 1.120 range. The included thermometer is accurate +/- 1 degree F. The increased transmission power of the Tilt gives it better reception and range, allowing it to send data through large, thick-walled fermenters and it will work with most Bluetooth 4.0+ devices. The Tilt was also built with efficiency in mind. The reduced power consumption allows to to use you Tilt batch after batch with the same battery. Each Tilt comes calibrated and ready to use with an included battery. Battery life is 12-24 months depending on usage. Easy to use, the Tilt makes a great addition to any brewhouse. Simply download the app, sanitize your Tilt, drop it into your fermenter, and start taking readings!

The Tilt Hydrometers comes in a rainbow of colors to brighten up your brew supplies, but these colors are not just cosmetic. Use a different color Tilt to monitor multiple batches of beer at the same time. The Tilt App will not read multiple hydrometers of the same color.