shop by category


left banner

Yellow RAPT Pill - Hydrometer & Thermometer (Wifi & Bluetooth)

80,00 GBP

80,00 GBP impuestos excl.

The RAPT Pill allows accurate and precise, true real-time specific gravity and temperature logging via Wi-Fi/bluetooth integration with the RAPT mobile app or RAPT IOT. 

The RAPT Pill acts as both a real-time gravity testing hydrometer and thermometer allowing instant gravity and temperature measurements and also logging from inside your fermenter during fermentation.

Últimas unidades en stock


100% Secure Payment Processing


Most orders processed within next working day


30 day return policy for unused items

  • Code
  • MPN

Yellow RAPT Pill - Hydrometer & Thermometer (Wi-Fi & Bluetooth)

The RAPT Pill allows true real-time specific gravity and temperature logging and control via Wi-Fi/Bluetooth integration with the RAPT mobile app or RAPT IOT. 

The RAPT Pill allows you to instantly read and log the specific gravity and temperature of your fermentation via the RAPT mobile app on your compatible Android smartphone or tablet, Apple iPhone/iPad or via the RAPT IOT hub on your Windows or Mac Computer.

The RAPT Pill has a long battery life and can last 2-5 months between charges when utilising Wi-Fi. If only using Bluetooth the the battery can last 2+ years before needing to be recharged. The RAPT Pill has a USB-C charging port on the circuit board allowing fast charging from any USB-C cable.

The RAPT Pill has an optional upgradable external antenna which can be installed onto the circuit board allowing the RAPT Pill signal to pass through thick-walled stainless fermenters such as kegmenters (KL06866) which other wireless hydrometers struggle to penetrate.

The RAPT Pill is universal and is compatible with most standard carboys, cornelius kegs, stainless steel fermenters and pressurisable fermenters.

Once the RAPT Pill is connected via USB-C and connected to Wi-Fi, the firmware will automatically update to the current version (if needed). The Pill must be plugged in via USB-C and connected to Wi-Fi in order to receive firmware updates.

IMPORTANT NOTE: Ensure the RAPT Pill is charged for 24 hours before use. This is to ensure that it is fully charged and the battery is calibrated.

Click here for instruction manual RAPT Pill Hydrometer & Thermometer Quick Start Guide

Pill Housing Design

The RAPT Pill housing boasts many advantages compared to other wireless hydrometers such as:

Made from strong BPA Free Tritan Plastic

Greater ergonomics - The shape of the RAPT Pill has been designed for improved usability compared to other wireless hydrometers such that the Pill separates into two pieces at the midline of the Pill rather than requiring a difficult to remove end cap to be unscrewed.

Sanitary design - The RAPT Pill has no exposed thread and a double O-ring seal which allows for a water-tight seal with reduced risk of infection.

Less susceptible to error - The larger housing of the RAPT Pill compared to other wireless hydrometers means that the gravity logging is less susceptible to error from krausen, hops or CO2 bubbles from fermentation.

Different housing colours are sold separately on the website allowing customisation of your RAPT Pill. The colours available include:

Replacement bottom RAPT Pill clear bottom housing and RAPT Pill O-ring Set also available


The RAPT Pill is approximately 37mm x 125mm - compact enough to fit almost anywhere!

What is RAPT?

The RAPT IOT Hub is a free service whereby any RAPT enabled product can both log and store data to the hub where you can conveniently access this data.  The RAPT hub can also allow you to control your devices remotely giving you absolute control of the device irrespective of where you are.  The RAPT portal enables you to make complex temperature profiles that involve different temperature settings over time meaning you can start/run a temp profile giving you a set and forget experience.  The RAPT portal also controls the alert/notification process for you so you can receive email notification in the off instance that something doesn't go to plan.

There is no limit to the number of RAPT devices you can connect the RAPT IOT Hub. This is in contrast to other popular wireless hydrometers where you are limited by the number of hydrometers you can connect to an app

Please note: The RAPT Pill is fully Wi-Fi and Bluetooth capable. At present it can be integrated fully with Wi-Fi. Bluetooth integration will be enabled with a later firmware update.


Ficha técnica


Referencias específicas


PayPal Accepted
Chugger Pump Reseller
Angel Homebrew Price Match


PayPal Accepted
Chugger Pump Reseller
Angel Homebrew Price Match

jeans banner