RAPT Pill Digital Hydrometer & Thermometer – Yellow

Description

The RAPT Pill Yellow digital hydrometer is a wireless, floating gravity and temperature sensor that eliminates manual hydrometer readings during fermentation. Drop it into your fermenter, connect via Wi-Fi or Bluetooth, and track specific gravity in real time through the free RAPT Portal — all without opening the vessel or pulling samples. If you’ve been frustrated by inconsistent manual readings or the contamination risk of repeated sampling, the RAPT Pill Yellow delivers accurate, continuous data from pitch to package. It’s the most widely adopted floating hydrometer among Australian home brewers and is stocked locally at Yeast Platform for fast dispatch.

Real-Time Gravity Curves Without Opening the Fermenter

The RAPT Pill Yellow logs gravity and temperature at configurable intervals — every 15 minutes is the popular default — and streams data to the RAPT Portal where you can view fermentation curves, set alerts for stalled ferments or rapid gravity drops, and share dashboards with your brew club. The graphing makes it straightforward to spot the right moment for a diacetyl rest, identify temperature excursions before they affect flavour, and confirm terminal gravity across multiple batches in parallel without ever lifting a fermenter lid.

Setup and Calibration

Calibration is a one-step process: float the Pill in distilled water, enter the reading as your reference, and the sensor auto-compensates for temperature-induced density variation from that point on. First-time Wi-Fi setup takes around 10 minutes — scan the QR code printed on the Pill, connect to your 2.4GHz home network, and the device appears on the RAPT Portal dashboard immediately. Bluetooth mode works as a local fallback when Wi-Fi isn’t available, pairing directly to the RAPT mobile app for bench-side readings.

Brewing in Australian Conditions

Australian summers push ambient temperatures well above comfortable fermentation ranges, making real-time temperature logging as valuable as the gravity data. Pair the RAPT Pill Yellow with the RAPT WiFi Temperature Controller to close the loop: the Pill reports what’s happening inside the vessel, the controller acts on it by switching your fridge or heat mat. Both devices share the RAPT Portal ecosystem for a unified view of every batch. Add the Wireless Charging Kit to keep the Pill charged between batches without disturbing the fermenter seal.

In stock and shipping from our Australian warehouse. Order before 2pm AEST weekdays for same-day dispatch.