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Review · Tilt

Tilt wireless hydrometer review

A floating Bluetooth hydrometer and thermometer that logs fermentation without pulling samples, read from Tilt's spec pages, FAQ and the listing.

Our verdict

The Tilt is a handy way to watch gravity and temperature over a whole fermentation without opening the fermenter, but at ±0.002 SG it is a trend tracker, so confirm final gravity with a regular hydrometer before you bottle.

The Tilt floats in your beer and tilts more or less as the gravity drops. It reports that angle as specific gravity, plus temperature, over Bluetooth to a phone, a tablet, a Raspberry Pi running Tilt Pi or Tilt's Pico Wi-Fi bridge. Tilt rates it at ±0.002 SG between 0.990 and 1.120 and ±1°F, with a battery that lasts 12–24 months.

That accuracy is good enough to see when fermentation starts, slows and stops, and to catch a stalled batch early. It is not tight enough to replace a final reading with a calibrated glass hydrometer. Signal range in stainless fermenters and kegs is limited too, so plan where the receiver sits.

Range
SG 0.990–1.120
Accuracy
±0.002 SG (per Tilt)
Connectivity
Bluetooth to app or Tilt Pi
Battery
12–24 months (per maker)
Check it on Amazon All specs

Updated November 2026 · Based on maker specs, the manual, the listing and published sources; we did not brew with it

The short version
  • Reads SG 0.990–1.120 at ±0.002 and temperature at ±1°F (±0.5°C), per Tilt.
  • Sends readings over Bluetooth to the Tilt app, a Tilt Pi or the Pico Wi-Fi bridge for cloud logging.
  • Battery life 12–24 months per the listing; Tilt's spec sheets list a user-replaceable CR123A cell.
  • One color per fermenter: the app won't read two Tilts of the same color.
  • Range drops in stainless; Tilt sells a repeater, and the Pro Mini is sized for kegs.

This Tilt hydrometer review covers the standard black Tilt, a sealed float that goes straight into your fermenter. Instead of drawing samples, you watch a gravity curve build over days. That shows when yeast takes off, when it slows, and when the reading stops changing, which is the signal you need before bottling or kegging.

We read Tilt's product pages, FAQ and spec sheets, the listing and published brewing sources. We did not use a Tilt in a fermenter. For other gauges, see the hydrometers and meters hub and the fermenters and temperature control hub.

Who it’s for, and who should skip it

Good fit if you…
  • Want to track fermentation without opening the fermenter or wasting beer on samples
  • Ferment in plastic, glass or PET where Bluetooth carries well
  • Pair it with a temperature controller and want to see the beer's own temperature
  • Run several batches and can give each its own Tilt color
  • Like logging data to a spreadsheet or the cloud
Skip it if you…
  • Need final gravity to better than ±0.002 SG
  • Ferment in closed stainless and won't add a repeater or bridge nearby
  • Want two batches tracked by Tilts of the same color in the app
  • Only brew a few batches a year and are happy taking hydrometer samples

Pros and cons

What stands out
  • Continuous gravity and temperature readings without opening the fermenter
  • Arrives pre-calibrated, with multi-point calibration in the app
  • Works with the app, Tilt Pi and the Pico Wi-Fi bridge
  • Battery lasts 12–24 months, per the listing
  • Works in beer, wine, cider and mead, per Tilt
  • Pro, Pro Mini and Pico models for kegs, big tanks and remote logging
Keep in mind
  • ±0.002 SG is coarser than a good glass hydrometer for final gravity
  • Bluetooth range drops sharply in stainless steel
  • One color per batch; same-color Tilts confuse the app
  • Needs a phone, Pi or bridge within range to log
  • Temperature can take up to 15 minutes to settle after you drop it in, per Tilt

Specs

RangeSG 0.990–1.120
Accuracy±0.002 SG (per Tilt)
ConnectivityBluetooth to app or Tilt Pi
Battery12–24 months (per maker)

As stated by the maker or seller; confirm on the listing before you buy.

How accurate is the Tilt hydrometer?

Tilt rates the standard model at ±0.002 specific gravity between 0.990 and 1.120 and the thermometer at ±1°F (±0.5°C). In practice that means a reading of 1.012 could be anywhere from 1.010 to 1.014. For watching a curve flatten out, that is plenty. For an exact final gravity, or for calculating ABV, take a sample with a calibrated glass hydrometer at the end.

The Tilt Pro and Pro Mini list 0.0001 SG resolution, meaning finer steps on the display. Tilt's Pro Mini spec sheet still lists ±0.002 SG accuracy. Resolution and accuracy are not the same thing.

Tilt models at a glance

ModelGravityBuilt forBattery
Tilt (standard)0.990–1.120, ±0.002Homebrew fermentersCR123A, 12–24 months (listing)
Tilt Pro Mini0.9900–1.1200 (calibratable to 1.2000), 0.0001 resolutionKegs and pressure fermenters, up to 5 BBLCR123A, 1–2 years
Tilt Pro0.0001 resolutionTanks up to 20 BBL2 × AA lithium, 3–5 years
Tilt PicoBridge, no sensorBluetooth to Wi-Fi, about 2 months of local storagePlug-in

Source: Tilt product pages and spec sheets

Tilt ships the hydrometer pre-calibrated. After a battery change, Tilt says to float it in room-temperature tap water and let it reset to 1.000. For tighter readings, its app supports extra calibration points made with sugar solutions, such as 1.061 and 1.120.

Does the Tilt work in a stainless fermenter or keg?

Partly. Tilt's FAQ gives up to about 25 ft of range from a phone or tablet in normal use. Stainless steel blocks a lot of that. Tilt's Pro Mini spec sheet gives about 300 ft line of sight floating in an open glass vessel, but only about 20 ft inside a closed 5-gallon stainless keg. For stainless fermenters Tilt sells a repeater that sits on top of the vessel and adds about 25 ft, and the Pico bridge can mount on or near the fermenter.

If you ferment in a fridge or a stainless conical, keep the receiver close: a spare phone, a Raspberry Pi with Tilt Pi or the Pico just outside the chamber door. PET fermenters such as the FermZilla are easier; our FermZilla review covers those.

Using the Tilt through a fermentation

  1. Clean and sanitize it

    Wash the Tilt, then sanitize it with a no-rinse sanitizer used as the label directs, and drop it into the fermenter after pitching.

  2. Give each batch its own color

    The app reads one Tilt per color. A second batch needs a second color, such as the red Tilt.

  3. Log original gravity

    Let the temperature settle (Tilt says up to 15 minutes), then note the starting reading alongside your hydrometer OG.

  4. Watch the curve flatten

    When gravity holds steady for two or three days, fermentation is likely done.

  5. Confirm before packaging

    Take a final sample with a glass hydrometer, then bottle or keg.

A shallow open fermentation vessel in a brewery covered in foam
Gravity drops fastest while the krausen is up.Photo: Picardin, CC BY 4.0, via Wikimedia Commons

Pair it with a temperature controller and you can see whether the beer, not just the air around it, stays in range; our Inkbird ITC-308 review covers one. Use the ABV calculator with your hydrometer readings and keep each batch in the brew-day log.

ABV calculatorTurn your OG and final hydrometer reading into ABV and standard drinks per serving.
Avoid bottle bombsBottle only after the gravity reads the same 2–3 days in a row, measure priming sugar with a calculator, use standard bottles only to about 3 volumes, store them in a closed box at room temperature and refrigerate once carbonated.Source: BYO carbonation priming chart
Chemicals: label directions onlyUse sanitizers, cleaners, acids and salts only at the dilution and contact time on the label. Wear eye protection with acids and powders, add acid to water, keep them away from children and food prep. Star San is EPA-registered (Reg. No. 65001-1) as a no-rinse sanitizer at label dilution.Source: EPA Star San label

Tilt vs RAPT Pill and regular hydrometers

KegLand's RAPT Pill is the main floating alternative; it connects over Wi-Fi to the RAPT app and fits naturally with KegLand's FermZilla and BrewZilla. The listing in our catalog gives few specs, so check KegLand's manual for range and battery details. A triple-scale glass hydrometer and test jar is still the reference reading and needs no batteries. A refractometer needs only a few drops, but its readings after fermentation starts need an alcohol correction.

Our best digital hydrometers list compares floating gauges, and the best refractometers for brewing list covers the optical option.

Two open fermenting buckets with rocky krausen on top
Two open fermenting buckets with rocky krausen on topPhoto: David Blaikie, CC BY 2.0, via Flickr

Alternatives worth a look

Wi-Fi floating gauge: KegLand's RAPT Pill floats in the fermenter and reports gravity and temperature to the RAPT app; check KegLand's manual for range and battery details.

Reference reading: A US-made triple-scale glass hydrometer with a test jar, which the maker describes as NIST-traceable, for confirming final gravity.

Few drops, fast: A Brix/SG refractometer with ATC (10–30°C) for quick wort readings; post-fermentation readings need an alcohol correction.

How we reviewed it

We read the maker’s specs, the manual and the current listing, and checked them against published brewing sources (Palmer, BJCP, AHA, BYO) and safety guidance where it applies. We did not brew with, install or lab-test this product. We never show scores, star ratings or prices.

Questions

How accurate is the Tilt hydrometer?
Tilt rates it at ±0.002 SG between 0.990 and 1.120 and ±1°F for temperature. It is good for tracking a fermentation curve; confirm final gravity with a glass hydrometer.
Does the Tilt work in stainless steel fermenters?
With reduced range. Tilt's Pro Mini spec sheet gives about 20 ft inside a closed stainless keg. A Tilt repeater or a nearby Pico bridge helps.
How long does the Tilt battery last?
The listing gives 12–24 months depending on use. Tilt's spec sheets list a user-replaceable CR123A lithium cell; recalibrate in water after changing it.
Can I use two Tilts at the same time?
Yes, if they are different colors. The Tilt app won't read two hydrometers of the same color for different batches.
Do I still need a regular hydrometer with a Tilt?
It's a good idea. A glass hydrometer gives a more precise final gravity for ABV and a check on the Tilt's calibration.
Can the Tilt log to the cloud without a phone?
Yes, through a Raspberry Pi running Tilt Pi or the Tilt Pico Wi-Fi bridge, which stores about two months of data locally, per its listing.

Sources

  1. Tilt: Wireless hydrometer and thermometer (specs)
  2. Tilt: FAQs
  3. Tilt: Multi-point calibration with the Tilt 2 app
  4. Tilt: Extending range in stainless fermentors with the Tilt repeater
  5. Tilt: Tilt Pro wireless hydrometer (spec sheet)