Tel-Tru BQ300 Barbecue Thermometer
- Grill Thermometer
- Battery
- Analog
- 1 foot
Accurate and easy to read at night once mounted correctly, but check your grill's existing hole size before ordering and budget separately for the installation kit.
As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.
How it ranks among the 19 grill thermometers we track
4.6★ across 259 Amazon ratings, Bayesian-smoothed toward the category average.
259 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
300+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 19 grill thermometers we track - how the scorecard works · full grill thermometers data report. Confidence: medium - useful but incomplete evidence.Last refreshed Jun 21, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Tel-Tru's BQ300 is a 3-inch glow-dial barbecue thermometer made from 304 stainless steel, with a 4-inch blunt-tip stem and a 100 to 500 degree F range. It threads in as 1/2 inch NPT and is built for permanent mounting in a smoker, pit or grill lid.
- 304 stainless steel construction
- 1/2 inch NPT threaded connection
- 3 inch glow dial with zones
- 4 inch blunt-tip stem
Who it's for
Good for smoker and pit owners installing a permanent dial thermometer into a 7/8 inch hole. Not a fit for grills whose factory hole is smaller, such as the Weber Spirit line's 3/8 inch opening, unless you're willing to drill a new one.
What buyers say
From Amazon customer reviews.
Owners consistently praise the accuracy, several verifying it against separate probes or a boiling-water test that read 212 degrees F, and like that the glow face makes it easy to check temperature at night on long smokes. The recurring complaint is that the installation kit is not included and is described as overpriced compared to ordering it directly from Tel-Tru; one reviewer also warns that despite marketing claims of fitting most grills, it will not drop into a Weber Spirit gas grill's stock 3/8 inch hole without redrilling, and a couple mention the mounted element can work a little loose over time.
Strengths and trade-offs
Drawn from this product's published specifications.
- Accuracy confirmed by multiple owners against probes and boiling water
- Glow dial stays readable in the dark
- Stainless steel build holds up outdoors
- Installation kit sold separately and pricier through the listing than direct from Tel-Tru
- Does not fit every grill's stock hole size
- A couple of owners found the element could loosen after mounting
Performance notes
The 4-inch stem reaches into the cooking chamber near the lid to read ambient temperature, and reviewers who cross-checked it against probes and boiling water report it lands right on target, with one owner confirming 212 degrees F at a boil.
Specifications
| Brand | Tel-Tru |
|---|---|
| Model | BQ300 |
| Dimensions & fit | |
| Item Length | 4 inches |
| Immersion Depth | 4 inches |
| Capacity & performance | |
| Upper Temperature Range | 500 °F |
| LowerTemperature Range | 100 °F |
| Age Range Description | Adult |
| Power & efficiency | |
| Power Source | Battery |
| Construction & materials | |
| Outer Material | Stainless Steel |
| Inner Material | Stainless Steel |
| Color | green |
| Compatibility & installation | |
| Smart Home Compatibility | Not Smart Home Compatible |
| Included components | |
| Unit Count | 1 foot |
| Included Components | Mounting Nut |
| Other details | |
| Display Type | Analog |
| Product Care Instructions | Wipe Clean |
| Response Time | 500 Milliseconds |
| Part Number | 351U04FBAKLAAAA |
| Style Name | Classic |
| Additional Features | Glow Dial |
| Indoor Outdoor Usage | Outdoor |
| Reusability | Reusable |
Other Tel-Tru grill thermometers
How it compares
This product against the closest alternatives we track in grill thermometers.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Tel-Tru BQ300 Barbecue ThermometerThis product | 4.6 / 5 | 259 | 4.1 / 5 |
| 9815 & 62538 Accurate Grill Thermometer Replacement for Weber Genesis Silver B/CWemeikit | 4.6 / 5 | 936 | 4.5 / 5 |
| Weber 60540 CharcoalWeber | 4.7 / 5 | 2,313 | 4.4 / 5 |
| Weber iGrill 3 Grill Thermometer | 4.6 / 5 | 5,500 | 4.4 / 5 |
| CDN Grill Surface ThermometerCDN | 4.2 / 5 | 1,221 | 4.1 / 5 |
Similar grill thermometers from other brands
Questions about the Tel-Tru BQ300
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What size hole does the Tel-Tru BQ300 need?
It threads in as 1/2 inch NPT and is meant to install into a 7/8 inch hole.
Is the installation kit included?
No, kit #4903101 is sold separately, and reviewers say it costs less bought directly from Tel-Tru.
Will it fit a Weber Spirit gas grill?
Not without drilling a new hole, according to one reviewer, since the Weber Spirit's factory hole is 3/8 inch.