BBQube TempMaster Pro: BBQ & Sous-Vide Controller Guide

The BBQube TempMaster Pro is a set-and-forget automatic temperature controller for charcoal grills and smokers: a variable-speed fan feeds your coals exactly the air they need to hold your target pit temperature for hours, while a multi-probe thermometer tracks the pit and your food from an app on your phone — plus a dedicated sous-vide mode for precision water-bath cooking.

Why is holding a steady temperature the hardest part of charcoal BBQ?

Charcoal doesn't have a dial. The fire's temperature is controlled by oxygen: open the bottom (intake) vent and the coals burn hotter; close it and they smolder. The top vent is your exhaust and usually stays at least partly open so smoke keeps flowing and doesn't turn stale and bitter on the meat.

Three things make manual control tricky on a long cook:

• Lag time. A small vent adjustment can take 10–15 minutes to show up at the grate, so beginners overcorrect and chase the temperature up and down all afternoon.
• Fuel layout. For an all-day burn you need charcoal that lights gradually — the snake method (two rows of briquettes curled around the perimeter of a kettle, lit at one end) or the minion method (a chimney of lit coals poured over unlit ones in a smoker's fire ring). A well-built snake in a 22" kettle can smolder 12 hours or more.
• Constant attention. Even with a good fuel setup, a water pan as a heat sink, and practiced vent hands, you're checking the pit every 30–45 minutes. On an overnight brisket, that means alarms at 2 a.m.

Learning those manual skills is absolutely worth it — it makes you a better cook. But it's also the exact job an automatic controller was built to do for you.

How does the TempMaster Pro control pit temperature automatically?

The concept is simple and proven: instead of you nudging a vent, a fan does it hundreds of times with more patience than any human.

• The fan mounts to your grill's intake vent using a grill-specific adapter, so all incoming air to the fire flows through the fan. That gives the controller real authority over the burn.
• A pit probe clipped at grate level measures the actual air temperature where your food sits — not the less-accurate reading from a lid thermometer mounted 6 inches above the meat.
• The controller compares that reading to your setpoint and continuously varies the fan speed: more air when the pit dips below target, easing off as it arrives. The result is a pit that sits within a few degrees of 225°F (or whatever you set) for as long as there's fuel.
• Food probes track internal meat temperature at the same time, and the phone app lets you watch the cook from the couch, the yard, or your bed.

Your job shrinks to three things: load enough charcoal for the length of the cook (snake or minion method), keep the lid closed, and set your target. The fire-tending is handled.

Which grills does the TempMaster Pro fit?

The TempMaster Pro is designed for close-lid charcoal cookers, with grill-specific adapters for the most popular models:

• Weber Kettle (the classic 22" and other sizes)
• Weber Smokey Mountain (WSM)
• Big Green Egg
• Kamado Joe
• Char-Griller Akorn Kamado
• Other close-lid charcoal grills and smokers with a matching adapter

The rule of thumb: if your cooker has a tight-closing lid and an intake vent the fan can seal against, it's a candidate. Kamados like the Big Green Egg and Kamado Joe are especially good partners — their ceramic mass is so efficient that a controlled fire can sip charcoal for 12–18 hours at low-and-slow temps.

Two honest boundaries: the TempMaster Pro is not a pellet-grill controller (pellet grills already have their own feed systems and control boards), and it isn't for gas grills. It's built specifically for charcoal.

How does the sous-vide mode work?

Sous vide is the opposite philosophy from grilling: instead of blasting food with high heat and pulling it at the right moment, you hold a water bath at the exact final temperature you want and let vacuum-sealed food come up to that temperature gently and evenly — edge to edge, with no gray band and no risk of overshooting.

The TempMaster Pro's sous-vide mode applies the same precision it uses on your pit to a water bath: set your target water temperature and the controller holds it steady for the hours a low-temperature cook requires. Typical bath targets:

• Steak, medium-rare: about 129–135°F
• Pork chops: about 140–145°F
• Chicken breast: about 145–150°F with adequate time

The beautiful part for a BBQ household: sous vide gets you perfect doneness, and then the same charcoal grill your controller already runs delivers the 60-second hard sear and smoky finish. For a deeper dive on sous-vide time-and-temperature safety, see the guidance at USDA and the technique articles at AmazingRibs.com.

What can you cook hands-off with the TempMaster Pro?

Anything that benefits from a rock-steady pit — which is most of low-and-slow BBQ:

• Overnight brisket. Load the fuel, set 225–250°F, probe the flat, and go to bed. Around 150–170°F internal, the brisket will hit "the stall" — evaporation from the surface cools the meat and the internal temp plateaus for hours. The controller holds your pit steady straight through it; your only decision is whether to wrap.
• Pork butt for pulled pork. Plan roughly 1.5–2 hours per pound at 250°F, cooking to about 195–205°F internal until a probe slides in like warm butter.
• Ribs. About 5–6 hours at 250°F; trust the bend test over the clock.
• Whole chicken or turkey, prime rib, pastrami — anything where a drifting pit used to mean babysitting.

The real payoff isn't just better BBQ — it's your day back. Set the temp in the morning and spend the afternoon with your family and guests instead of hovering over a vent.

Which replacement probes work with the TempMaster Pro?

The TempMaster Pro uses 100K stainless thermistor probes — the same standard used by iGrill and ThermoPro-style thermometers. Probes are consumables (kinked cables and moisture eventually get them all), so keeping spares on hand is cheap insurance for a big cook:

• 6" fast-response food probe with inch markings (100K) — the general-purpose meat probe for brisket, pork butt, and roasts.
• 3" point-tip food probe for ribs and thinner cuts (100K) — shorter shaft sits properly in spare ribs and chicken pieces.
• Grill air temperature probe with stainless grate clip (100K) — the spare pit probe every controller owner should have.
• 8-ft extra-long wire food probe (100K) — extra reach across big cookers, or to keep the controller further from a hot firebox.

One compatibility note: probes marked 1M are built for Maverick ET-732/733 thermometers and are not interchangeable with 100K jacks — the readings won't be accurate. Match the probe rating to your unit.

Placement matters as much as the probe: clip the pit probe at grate level near the meat but not touching it (contact with cold meat skews the reading low), and insert food probes into the thickest part of the cut, away from bone.

Who is the TempMaster Pro for?

If tending a fire by hand