Tel-Tru BQ300 Barbecue Thermometer Black Dial
- Upper Temperature Range: 500 °F
- LowerTemperature Range: 100 °F
- Response Time: 500 ms
- Immersion Depth: 4 inches
Last refreshed Jun 21, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well built, accurate dial thermometer for smokers and grills, worth the premium over a basic gauge if you value the recalibration option and stainless build.
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ASIN: B001L4IISKModel: BQ300Category: Grill Thermometers
Overview
The Tel-Tru BQ300 is a dial-face grill and smoker thermometer with a 3 inch black face, red high and low zone markings, and a 4 inch stainless stem that reads 100 to 500 degrees F, made in the USA for mounting into a drilled lid or firebox.
This is an aftermarket dial thermometer, not a plug-and-play unit: it threads into a 7/8 inch drilled hole and Tel-Tru recommends a separate installation kit to lock it in place. What sets it apart from the cheap analog gauges sold alongside it is the US manufacturing and the fact that Tel-Tru will recalibrate a unit that drifts, rather than expecting the owner to just replace it.
- 3 inch black dial with red high/low zones
- 100 to 500 degree F range for smokers and grills
- 1/2 inch NPT stem for a 7/8 inch drilled mounting hole
- Made in USA stainless steel construction
Who it's for
Pitmasters and smoker owners who want a more accurate, better built dial readout than a stock gauge, and who are comfortable drilling and mounting it themselves. Not for anyone who wants a plug in probe thermometer or a fully bundled kit.
Pros and cons
- Accuracy and easy readability praised by multiple owners
- Stainless steel construction holds up over time
- Tel-Tru will recalibrate a unit that drifts
- Large 3 inch dial with color zones reads at a glance
- Costs noticeably more than basic dial gauges
- Installation kit #4903101 is sold separately, not included
- Thread fit caused confusion for at least one buyer despite the 1/2 inch NPT label
Performance notes
The bimetal dial mechanism drives a needle across red high and low zones so the temperature is readable from a few feet away, which several owners point to as the main advantage over smaller gauges. Tel-Tru also offers a factory recalibration path: one owner shipped a drifting unit back and had it recalibrated and returned rather than replaced.
Specifications
| Brand | Tel-Tru |
|---|---|
| Model | BQ300 |
| Dimensions & fit | |
| Immersion Depth | 4 inches |
| Item Length | 3 inches |
| Capacity & performance | |
| Upper Temperature Range | 500 °F |
| LowerTemperature Range | 100 °F |
| Age Range Description | Adult |
| Construction & materials | |
| Outer Material | Stainless Steel |
| Inner Material | Stainless Steel |
| Color | Black |
| Compatibility & installation | |
| Smart Home Compatibility | Not Smart Home Compatible |
| Included components | |
| Unit Count | 1 |
| Included Components | Only The Thermometer Itself Is Included. |
| Other details | |
| Response Time | 500 ms |
| Display Type | Analog |
| Indoor Outdoor Usage | Outdoor |
| Reusability | Reusable |
| Part Number | 3012zhenkong |
| Style Name | Classic |
| Additional Features | Large Display |
| Product Care Instructions | Wipe Clean |
| Specification Met | NSF |
Closest rivals on specs
Ninja XSKPROBEXL Woodfire Smart Thermometer- Item Length 3 vs 4.8 inches (-37%)
Wemeikit 9815 Grill Thermometer for Weber Genesis- Immersion Depth 4 vs 5 inches (-20%)
- Item Length 3 vs 5 inches (-40%)
- LowerTemperature Range 100 vs 140 °F (-29%)
Weber 60540 Replacement Grill Thermometer- Immersion Depth 4 vs 1.5 inches (+167%)
- Item Length 3 vs 1.8 inches (+67%)
Frequently asked questions
Does the Tel-Tru BQ300 include mounting hardware?
No. Tel-Tru recommends installation kit #4903101, sold separately, to lock the stem into a drilled mounting hole.
What temperature range does the BQ300 read?
It covers 100 to 500 degrees F on a 3 inch black dial with red high and low zone markings.
Is the BQ300 thread really 1/2 inch NPT?
Tel-Tru lists 1/2 inch NPT for a 7/8 inch drilled hole, though at least one buyer measured their bung closer to 3/4 inch and used reducers to get a proper fit.