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The Weber iGrill 3 is the hardest thermometer in my wireless thermometer guide to recommend on price, and the easiest to recommend to one specific person: someone who owns a Weber Genesis II, Genesis II LX or Spirit II with an “iGrill 3 Ready” plate on the side table.
It is built to dock into those grills, and it does one thing nothing else here does — it weighs your propane tank and shows the level in the app. If you have the right grill, that is a real argument. If you do not, $109.99 buys two probes and Bluetooth when $52.99 buys four probes and more range elsewhere.
Quick Verdict
| Score | Price | Rating | Buy |
| 6.5/10 | $109.99 | 4.5★ (5,552) | Check Price on Amazon |
What Comes in the Box
The unit, two colour-coded meat probes on a cord wrap, a battery pack with its bracket, three AA batteries, a cable clip, a quick start guide, and an LP tank scale sensor with its magnet.
Two things there deserve more attention than Weber’s own marketing gives them. The first is that this runs on AA cells rather than a rechargeable pack, which is why the 250-hour figure is plausible and why a dead unit is a two-minute fix rather than an evening on charge.
The second is the LP tank scale. It is a sensor that sits under a propane tank foot and reports the remaining gas in the app. No other thermometer in my guide includes anything like it, and it is the part most likely to matter on a Sunday afternoon.
Specifications
| Model | Weber iGrill 3 |
| Probes | Two supplied; four-probe capacity |
| Wireless | Bluetooth |
| Power | Three AA batteries, supplied — stated 250 hours |
| Fuel gauge | LP tank scale sensor included; propane level shown in the app |
| Designed to fit | Genesis II, Genesis II LX and Spirit II gas grills with an iGrill 3 Ready plate |
| App | iOS 11.1 or later; Android 6.0 or later with Bluetooth 4.0 |
| Housing | Plastic |
| Water rating | None — Weber states it must never be submerged |
This is a grill accessory before it is a thermometer
Most wireless thermometers are sold to anyone with an oven or a smoker. This one is sold to Weber owners: it mounts into a moulded slot on the side table of specific Genesis II and Spirit II models, and that integration is most of what the price is buying.
It works as an ordinary Bluetooth thermometer on any grill or oven — nothing stops you using it with a kettle barbecue or in a kitchen. But then you are paying for the mounting and the fuel gauge and using neither, which is a poor way to spend a hundred and ten dollars.
Judge it on that basis and the verdict is straightforward. As a Weber accessory it is good. As a general-purpose thermometer bought on merit, it is beaten comfortably on probe count, on range and on price.
Who It’s For
- Owners of a Genesis II, Genesis II LX or Spirit II with the iGrill 3 Ready plate
- Propane grillers who want a fuel gauge in the same app as the meat temperature
- Anyone who wants the longest battery life here, on cells you can replace from a drawer
- Buyers who want a mainstream brand with a service path rather than a marketplace name
Who Should Look Elsewhere
- Anyone without a compatible Weber grill — the main reason to buy it does not apply
- Owners of very recent Weber models: check compatibility against your exact grill and year before buying, for reasons set out below
- Anyone who wants four probes; this ships two, and the other two cost extra
- Cooks who wash their probes — Weber states the unit is not waterproof and must never be submerged
- Value buyers: the four-probe TempPro is $52.99 and the Typhur is a different tool entirely
Performance
Two probes, four-probe capacity
You get two colour-coded probes and the unit will take four, so the capacity headline is true but you are buying the extra two yourself. That is a meaningful gap against the TempPro, which ships four for a third of the price.
Two probes covers a joint plus the chamber, or two cuts with no ambient reading. For most gas-grill cooking that is adequate. For a long smoke where you want three meats and the pit, it is not.
The cord wraps that hold the probes are a small thing that owners raise unprompted and positively, which is not something you often read about a cable accessory.
Bluetooth, and the complaint that dominates the reviews
This is Bluetooth, so the monitoring range is the house and garden rather than anywhere with internet. The general trade-off is in Bluetooth vs WiFi meat thermometers.
The specific problem here is not distance but connection. Pairing difficulty and dropped connections are the single most repeated complaint in the critical reviews, including from owners standing within ten feet of the unit, and it is the reason this scores 6.5 rather than higher.
It is not universal. Plenty of owners report no trouble at all, one had a faulty unit replaced by Weber and the replacement behaved, and one found the connection steadied once more than one probe was in use. But it recurs too often to treat as bad luck.
250 hours on AA cells, and the fuel gauge nobody mentions
A stated 250 hours is far beyond anything else in this guide, and running on three AA batteries rather than a rechargeable pack is the right call for a device that lives in a drawer between uses. A dead unit is fixed from the same drawer.
The LP tank scale is the genuinely unusual feature, and one this category rarely offers at all. It weighs the propane tank and reports the level in the app alongside the meat temperature, which turns the thermometer into the thing that tells you whether you can finish the cook at all.
Which grills it actually fits
Weber lists Genesis II, Genesis II LX and Spirit II gas grills fitted with an iGrill 3 Ready plate. The plate is the thing that matters, not the family name, and it is on the side table rather than the grill body.
Two owners independently report that the listing oversold this, one stating a 2025 Spirit II was not supported despite Spirit II appearing in the description. Weber does not publish a compatibility list broken down by model year, so the safe move is to look for the plate on your own grill before ordering.
This matters more here than it would elsewhere, because grill compatibility is the entire argument for buying this thermometer over a cheaper one. Get it wrong and you have paid $109.99 for a two-probe Bluetooth unit.
The thing Weber tells you not to do
Weber’s cleaning instruction is explicit: clean with a lint-free cloth and non-abrasive cleanser, and never submerge, because the product is not waterproof.
On a device that lives outdoors next to a grill and goes into raw meat, that is a real limitation rather than boilerplate. The Typhur Sync Gold rates its probes IPX8 and states they are dishwasher safe; this one is plastic and must be wiped. It is the single specification that most separates the two.
Design and Build
A plastic body with colour-coded probes, designed to sit in the side-table slot of a compatible Weber. On those grills it looks like part of the machine rather than an accessory bolted on, which is the point.
App support reaches back a long way — iOS 11.1 or later, Android 6.0 or later with Bluetooth 4.0 — so an old phone is unlikely to be the problem. Weber does list some exceptions, including early iPhones and iPads and Huawei handsets.
What Owners Report
I have not cooked with this thermometer. What I can do is read what several thousand owners say about it, and on this product the gap between the specification and the experience is wider than usual. Here is what recurs on both sides, as of 7 September 2026.
What recurs in the positive reviews
- Installation on a compatible grill. A Phillips screwdriver and a few minutes, with step-by-step instructions owners describe as genuinely clear.
- It gets you away from the grill. The most repeated benefit, and owners reach for it in weather extremes — one grilling through winter, another avoiding 115℉ heat.
- Two probes show real differences. Owners cooking several steaks at once say the per-probe readings reveal how unevenly a grill actually cooks.
- The cord wraps. Repeatedly singled out as unusually well designed, which is not a sentence written about many accessories.
- Weber support. At least one owner had a chronically disconnecting unit replaced and raised their rating from three stars to five.
What recurs in the critical reviews
- Bluetooth pairing and dropouts. By a distance the most common complaint. Owners describe five or six attempts to connect, and drops within ten feet of the unit.
- Probe placement is unforgiving. Several owners report that a probe even slightly off centre reads badly wrong, in one case spiking towards 300℉ seconds after the meat went on.
- Alert fatigue. The app announces every crossing of the target — at temperature, below, above — and owners describe turning the sound off entirely.
- Compatibility does not always match the listing. Raised independently by two owners, one stating their 2025 Spirit II was not supported despite Spirit II appearing in the description. Check your exact model and year before ordering.
- Clumsy cabling. For a product sold on integration, the trailing probe leads come up more than once.
The pattern is a well-made accessory with a shaky radio. Nothing in the complaints touches the probes’ accuracy or the hardware’s durability; almost all of it is the Bluetooth link and the app around it. If you buy one, buy it from somewhere with a return path.
Value
At $109.99 this is the middle price in the guide and the weakest specification for the money. Two probes and Bluetooth against four probes and 650ft of rated Bluetooth for $52.99 on the TempPro.
The value works one way only. If you own the right Weber, the docking, the fuel gauge, the 250-hour battery and a real service path are worth something. Outside that, there is no argument for it that survives looking at the price of the alternatives.
Durability
Across 5,552 ratings the distribution runs 76% five-star, 14% four, 6% three, 1% two and 3% one-star. That 3% one-star share is the lowest of the three thermometers I have reviewed, on a healthy sample.
That is a genuinely good record, and it sits oddly beside how loud the connection complaints are. The likeliest reading is that the hardware lasts and the software irritates: a thermometer that pairs on the fifth try still cooks your dinner, so it collects three stars rather than one. Weber has made this model for years, which is why the sample is large.
Alternatives to Consider
- TempPro TempSync 650ft — $52.99. Four probes, a backlit display of its own and 10,330 ratings. The better buy unless you own a compatible Weber.
- Typhur Sync Gold — $152.99. A Sub-1 GHz link to a WiFi base, a stated ±0.5℉ accuracy and IPX8 probes rated to 932℉. The pick if precision and signal are the point.
- See the full ranking in my BBQ thermometer guide.
Verdict
The Weber iGrill 3 is a good product with a narrow audience. The 250-hour battery on replaceable AA cells is the best power story in the guide, the propane fuel gauge is genuinely unusual, and on a compatible Genesis II or Spirit II it docks into the grill and looks like it belongs.
Everywhere else it loses. Two probes against four, Bluetooth that owners fight with, no water rating at all, and $109.99 against $52.99. Buy it because you own the grill it was made for, and check your exact model against the compatibility list first. Do not buy it as a general-purpose thermometer.
How This Review Was Put Together
Plainly: this is research-based, not a hands-on test. I have not owned or used this thermometer, and nothing here should be read as a report from my own kitchen.
What it rests on: the published specification — probe count and capacity, wireless standard, power source, grill compatibility, the bundled fuel-level hardware and the cleaning limits Weber publishes — read against the other thermometers in my wireless meat thermometer guide; the shape of the rating distribution across 5,552 Amazon ratings rather than the 4.5 average it produces; and the text of the positive and critical reviews, read for themes that recur across independent owners.
Why owner reviews are treated as evidence here: one reviewer cooking on one unit for a fortnight cannot show a Bluetooth link that pairs on the fifth attempt, or a grill model quietly dropping off the compatibility list. Several thousand owners over years can. A theme is only reported above where more than one unconnected owner raised it.
What I could not establish: accuracy tolerance and response time, neither of which Weber publishes; whether the stated 250 hours holds in cold weather; how far the connection complaints reflect specific phone models rather than the unit; and exactly which recent Weber grills have dropped off the compatibility list, which Weber does not document by model year.
Price, stock and ratings were read from Amazon’s US marketplace on 7 September 2026 and will move.
Frequently Asked Questions
Does the Weber iGrill 3 only work with Weber grills?
No. It is a Bluetooth thermometer and works on any grill, smoker or oven. What is Weber-specific is the mounting: it is designed to dock into the side table of Genesis II, Genesis II LX and Spirit II grills fitted with an iGrill 3 Ready plate. Without one of those you are paying for integration you cannot use.
Will it fit my Weber grill?
Check your exact model and year rather than trusting the category name. Two owners report compatibility not matching the listing, one saying a 2025 Spirit II was not supported even though Spirit II appears in the description. The mounting depends on an iGrill 3 Ready plate on the side table, not on the grill family alone.
What batteries does the iGrill 3 use?
Three AA cells, supplied in the box, for a stated 250 hours. That is the longest life of any thermometer in my guide, and because they are standard cells a flat unit is a two-minute fix rather than a wait on a charger.
What is the LP tank scale that comes with it?
A sensor and magnet that sit under a propane tank and report the remaining gas in the iGrill app, alongside the meat temperature. No other thermometer in my guide includes anything like it, and for a propane griller it is arguably the most useful thing in the box.
How many probes come with the iGrill 3?
Two, though the unit takes four. Extra probes are bought separately. For comparison, the TempPro TempSync ships four probes at $52.99.
Is the Weber iGrill 3 waterproof?
No. Weber states it must never be submerged and should be cleaned with a lint-free cloth and non-abrasive cleanser. That is a real limitation on a device used outdoors and around raw meat, and it is where the Typhur, whose probes are IPX8 and dishwasher safe, pulls clearly ahead.
Why does it only score 6.5 out of 10?
Because of the Bluetooth. Pairing failures and dropped connections are the most repeated complaint in the reviews, including at close range, and a monitoring device you have to fight to connect to loses much of its point. The hardware and the battery are good; the link between them and your phone is the weak part.



















