7 Best Auber Instruments Controllers For Home Brewing

Precision in the brewhouse is just as critical as timing the harvest during a window of clear weather. When a hobby farmer moves from fire to electricity, the quality of the controller determines the consistency of the final pour. Auber Instruments has become the gold standard for those seeking commercial-grade accuracy on a homestead budget.

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Auber SYL-2352: Best PID for Electric Kettle Control

The SYL-2352 is the workhorse of the modern electric brewery, functioning much like a high-end thermostat for a greenhouse or incubator. It uses Proportional-Integral-Derivative (PID) logic to calculate exactly how much power is needed to maintain a specific temperature without overshooting. For a Hot Liquor Tank (HLT) where hitting a strike temperature is non-negotiable, this level of precision prevents ruined enzymes and poor extraction.

This unit is designed to work with a Solid State Relay (SSR), allowing it to pulse a heavy-duty heating element hundreds of times per minute. This rapid switching creates a stable environment that a mechanical thermostat simply cannot replicate. The bright LED display is easy to read across a crowded workshop, showing both the current temperature and the target set point simultaneously.

If the goal is to build a traditional three-vessel system where water temperature must be held steady for hours, this is the definitive choice. It is robust, reliable, and widely documented in the brewing community. You should choose the SYL-2352 if you want a proven, industrial-style controller that prioritizes temperature stability above all else.

Auber EZboil DSPR120: Top Pick for BIAB Brewing

Brew-in-a-Bag (BIAB) systems require a controller that can transition seamlessly from the delicate temperature holds of a mash to the vigorous energy of a boil. The EZboil DSPR120 differs from a standard PID because it includes a dedicated boil mode. Instead of trying to maintain a temperature during the boil—which is physically impossible once the liquid reaches 212°F—it allows for direct control over the percentage of power sent to the element.

This power adjustment is crucial for managing the intensity of the rolling boil and preventing messy boil-overs in the brewery. The “EZ” in the name refers to the simplified interface, which replaces complex PID parameters with intuitive dial-like controls. It eliminates the need for “auto-tuning” for the boil phase, making it a much more user-friendly option for farmers who value efficiency and straightforward operation.

This controller also features a programmable mash timer and a built-in alarm to signal when it is time to add hops or move to the next stage. It bridges the gap between manual control and full automation perfectly. If you are running a single-kettle BIAB setup, the DSPR120 is the most practical and specialized tool for the job.

Auber DSPR320: Best Smart Controller with WiFi

For the busy hobby farmer managing multiple chores, the ability to monitor a brew from the barn or the tractor is a massive advantage. The DSPR320 takes the reliable logic of the EZboil series and adds WiFi connectivity. This allows you to check the temperature and receive alerts on a smartphone, ensuring the mash stays within range while you attend to other tasks.

The interface is significantly upgraded with a rotary encoder, which feels more natural than pressing small buttons repeatedly to change temperatures. It supports multi-step mashing, meaning the controller can automatically raise the temperature through different enzymatic rests without manual intervention. This level of automation reduces the labor-intensive nature of brewing, allowing for better time management across the homestead.

Safety is also enhanced through the mobile app, which provides a secondary layer of monitoring for the system. While no brewing system should be left entirely unattended, the peace of mind provided by remote data is invaluable. This unit is the right investment for those who appreciate modern technology and need their brewing schedule to fit into a demanding lifestyle.

Auber SYL-2362: Best Dual-Display PID Controller

The SYL-2362 is a compact 1/16 DIN controller that packs high-end features into a very small footprint. Its primary advantage is the dual-line display which shows the process value and the set value in different colors for instant recognition. This clarity is vital when monitoring critical heat levels in a fast-moving brew day.

Unlike basic models, the 2362 offers a higher degree of customization for its outputs and alarm settings. It is often favored by those building custom control panels where space is at a premium but functionality cannot be sacrificed. The internal software is optimized for thermal stability, making it an excellent choice for a dedicated Mash Tun where even a two-degree swing can alter the fermentability of the wort.

This model is particularly effective when paired with a Pt100 RTD sensor, which offers better accuracy and less “drift” over time compared to standard thermocouples. It represents a professional-grade solution for the meticulous brewer who demands a clean, organized control panel. Choose this model if you are building a permanent, high-precision brewery and need a display that is clear from any angle.

Auber DSPR110: Most Simple and Budget-Friendly Option

Sometimes the most sophisticated solution is a simple one that just works without a steep learning curve. The DSPR110 is essentially a digital power regulator that functions like a high-capacity dimmer switch for your heating element. It does not use temperature probes or complex logic; it simply lets you set the power output from 0% to 100%.

This manual approach is surprisingly effective for the boil kettle, where the goal is simply to maintain a consistent evaporation rate. It eliminates the risk of “cycling” that some poorly tuned PIDs suffer from, where the element turns on and off too slowly to maintain a steady roll. For a farmer who prefers hands-on control and wants to minimize the cost of their electrical components, this is a sturdy and reliable pick.

While it lacks the automated mash controls of its more expensive siblings, it is nearly indestructible due to its simplicity. It is an excellent secondary controller for an HLT or a standalone boil kettle. If you want a no-frills, durable interface that mimics the simplicity of a gas burner, the DSPR110 is the correct choice.

Auber DSPR310D: Best for Advanced Step Mashing

Advanced recipes often require specific temperature rests—such as a protein rest or a mash-out—to achieve the desired clarity and mouthfeel. The DSPR310D is designed specifically to handle these multi-step mash profiles with ease. It allows the user to program up to 10 distinct steps, each with its own temperature and duration, and will automatically move from one to the next.

This automation ensures that every batch of beer is identical to the last, which is the hallmark of a skilled brewer. The unit features a large, easy-to-read display and a user-friendly menu system that makes programming less of a chore. It also includes an “end-of-step” alarm, so you are always notified when it is time to check the grain bed or begin the sparge.

This controller is best suited for the brewer who enjoys experimenting with complex grain bills and wants the equipment to handle the heavy lifting of temperature management. It removes the human error associated with timing and manual heat adjustments. If you view brewing as a technical craft and want to master sophisticated recipes, the DSPR310D provides the necessary tools.

Auber SYL-2342: Best PID for Small Relay Systems

While most modern electric brewing setups use Solid State Relays (SSRs) for their speed, some smaller or older systems still rely on mechanical relays. The SYL-2342 is specifically designed with an internal relay output that can directly trigger smaller loads or larger contactors. This makes it a specialized tool for specific wiring configurations where an SSR signal is not required.

It still features the robust PID algorithm found in the 2352 model, ensuring that temperature control remains tight and accurate. However, because mechanical relays cannot cycle as fast as SSRs, this unit is typically used for slower-responding systems or for controlling auxiliary equipment like pumps or cooling fans. It is a versatile component that can serve multiple roles on the farm beyond just brewing.

This model is ideal for the DIY-focused hobbyist who may be repurposing existing agricultural equipment for their brewery. It offers the same high-quality sensor compatibility and display as the rest of the Auber line. Choose the 2342 if your specific circuit design requires a physical switch closure rather than a low-voltage DC signal.

How to Choose Between PID and EZboil Controllers

Deciding between a PID and an EZboil comes down to how you interact with the heat during the brew day. A PID controller, like the SYL-2352, is a mathematical tool designed to reach a temperature and stay there indefinitely. It is perfect for water heating and mashing, but it often struggles during the boil because it tries to “slow down” the heat as it approaches 212°F, which can prevent a vigorous boil from ever starting.

EZboil controllers, such as the DSPR120, are hybrid devices designed by brewers for brewers. They function like a PID during the mash phase but switch to a percentage-based power mode for the boil. This allows you to set the power to 65% for a steady simmer or 100% for a fast ramp-up, giving you much more intuitive control over the physical state of the wort.

• Choose a PID if: You are only controlling an HLT or a RIMS/HERMS mash system where boiling is not the primary function.
• Choose an EZboil if: You are building a single-vessel system or want a controller that can handle both the mash and the boil with specific logic for each.
• Consider the interface: PIDs usually have more “hidden” settings, while EZboils prioritize a streamlined, user-friendly menu.

Wiring and Safety Tips for DIY Electric Brewing

Mixing water and high-voltage electricity requires a uncompromising approach to safety. The most critical component in any electric brewery is a Ground Fault Circuit Interrupter (GFCI). This device monitors the balance of current and will shut down power in milliseconds if a leak to ground is detected, potentially saving a life if a heating element fails or a spill occurs.

Proper grounding of the kettle itself is equally vital. A dedicated grounding wire should be attached securely to the metal chassis of the kettle and the control box, ensuring that any stray current has a safe path to follow. Always use wire gauges rated for the amperage of your heating element; for a standard 5500W element on a 240V circuit, 10-gauge wire is the minimum requirement to prevent overheating and fire risks.

Heat management inside the control box is a non-obvious but crucial consideration. Solid State Relays (SSRs) generate significant heat during operation and must be mounted to a large heat sink, preferably on the exterior of the box. Adding a small 12V or 120V fan to the enclosure will circulate air and prevent the sensitive electronics in your Auber controller from failing due to thermal stress.

How to Properly Auto-Tune Your Auber PID Controller

Auto-tuning is the process where the PID controller “learns” the thermal dynamics of your specific kettle and liquid volume. Every system is different; a 10-gallon batch in a thin-walled pot loses heat differently than a 5-gallon batch in an insulated tun. To start, fill your kettle with a standard volume of water and set the controller to a typical mash temperature, such as 152°F.

Once the “AT” (Auto-Tune) mode is engaged, the controller will intentionally overshoot and undershoot the temperature several times. It observes how fast the temperature rises when power is on and how quickly it drops when power is off. It is important not to disturb the water or change the pump flow during this process, as any external variable will result in an inaccurate tune.

After the cycle completes, the controller saves the Proportional, Integral, and Derivative values to its memory. You will notice that the temperature now glides toward the set point and settles with minimal oscillation. If you significantly change your equipment—such as adding a heavy jacket of insulation or moving to a much larger element—you should re-run the auto-tune to maintain peak performance.

Investing in a high-quality controller is the fastest way to transition from unpredictable results to a professional brewing rhythm. By choosing the right Auber unit for your specific setup and prioritizing safety in your build, you ensure that every batch of farm-crafted ale meets the highest standards of quality.