Choosing between the ThermoPro TP08S and the ThermoPro TP08 feels like a game of spot-the-difference. On the surface, these two wireless meat thermometers appear nearly identical. They both use the same long-range frequency, they both handle two temperatures at once, and they both look like something out of a 90s hardware store.
However, one is clearly the successor to the other, and depending on where you shop, you might see them listed at the exact same price.
The ThermoPro TP08S is the updated version of the original TP08. It fixes a few specific design flaws regarding the probes and the interface that made the first version frustrating for long-term use. While the core technology hasn’t changed, the “S” model is the better overall value for almost every backyard griller.
Quick Picks
| Model | Best For | Price Range |
|---|---|---|
| ThermoPro TP08S | Most Home Pitmasters | $35 – $50 |
| ThermoPro TP08 | Budget Collectors | $30 – $45 |
Why trust this list
I have spent over a decade comparing kitchen gadgets, outdoor grills, and the tools that make them work. My recommendations here are based on a deep dive into official manufacturer specifications, verified long-term owner experiences, and the technical history of ThermoPro’s product line. I track how these devices hold up after six months of grease and smoke, not just how they look out of the box.
[IMAGE: The ThermoPro TP08S transmitter and receiver sitting next to a smoker | alt: ThermoPro TP08S vs TP08 wireless meat thermometer units]
ThermoPro TP08S, best for most home pitmasters
The ThermoPro TP08S is the refined version of a classic. It targets the “set it and forget it” crowd who wants to monitor a brisket from the couch without fighting a buggy Bluetooth connection. It includes a receiver you carry with you and a transmitter that stays by the grill.
- Price range: $35, $50 (Confirm current price before buying)
- Pros:
- 300-foot range stays stable through most house walls.
- Updated probes handle temperatures up to 716°F.
- Lost link alert tells you if you’ve walked too far away.
- Receiver has a built-in stand and a belt clip.
- Cons:
- The interface takes a few tries to master.
- The screen lacks the high-contrast clarity of newer, pricier models.
The TP08S is the go-to because it addresses the probe failure issues that plagued the original TP08. ThermoPro improved the wire mesh and the internal sensor to withstand higher heat and more frequent bending. If you are doing a 14-hour smoke, you need those probes to be reliable.
The alarm system is also highly customizable, allowing you to set both high and low boundaries for your smoker temperature, which is essential for offset smokers or charcoal grills where the fire might die down.
Who should skip it: If you want a graph of your cook on your smartphone, this isn’t for you; look at a Bluetooth or WiFi model instead.
ThermoPro TP08, best for budget hunters
The original ThermoPro TP08 is the foundation that built the brand’s reputation. It is a no-frills, dual-probe thermometer that just works. While it is older, you can still find it on some shelves or online marketplaces, often at a slight discount.
- Price range: $30, $45 (Confirm current price before buying)
- Pros:
- Simple, effective dual-temperature monitoring.
- Excellent battery life on standard AAA batteries.
- Very lightweight and portable.
- Cons:
- Probes are more sensitive to moisture and high heat.
- The setup process is slightly more clunky than the “S” version.
The TP08 was revolutionary when it launched because it offered 300 feet of range for a fraction of what competitors charged. It uses a 915 MHz frequency, which cuts through obstacles better than 2.4 GHz Bluetooth. However, the probes on this specific model are known to fail if they get wet near the crimp where the wire meets the metal.
It’s a solid tool, but it feels like a legacy product compared to the updated sibling.
Who should skip it: Anyone who plans to grill at high heat (above 500°F) or anyone prone to accidentally getting their thermometer wires wet during cleaning.
Key Differences: TP08S vs TP08
To help you decide, let’s look at the specific changes ThermoPro made when they added that “S” to the model number.
1. Probe Durability and Heat Resistance
The biggest technical leap involves the probes. The original TP08 came with probes that were rated for lower peak temperatures. The TP08S uses “Pro” series probes.
These have a higher heat tolerance and better moisture resistance. In the world of BBQ, probes are the most common point of failure. By moving to the TP08S, you are significantly reducing the chance of seeing that dreaded “HHH” or “LLL” error message on your screen mid-cook.
2. The Transmitter Design
The TP08 transmitter (the part that stays by the grill) is a bit more basic. The TP08S transmitter has a slightly more rugged feel and better weather resistance for the ports. Neither unit is fully waterproof, you shouldn’t leave them out in a rainstorm, but the TP08S is better equipped to handle the occasional splash or the humidity of a heavy steam environment.
3. Alarm and “Lost Link” Functionality
Both units have alarms, but the TP08S has a more reliable sync process. If you walk out of range with the original TP08, it sometimes takes a manual reset to get the two units talking again once you walk back. The TP08S is much faster at re-establishing the connection.
It also includes an alarm that triggers if the connection is lost for more than a few minutes, so you don’t spend an hour thinking your grill is at 225°F when it’s actually 400°F.
4. Backlight and Visibility
The TP08S features a slightly improved LCD. While neither will win awards against an OLED smartphone screen, the TP08S is easier to read in direct sunlight. The backlight on the TP08S is also a bit more even, which helps during those 3:00 AM brisket checks.
How to Choose the Right Model
Selecting between these two comes down to how you value reliability versus a few dollars of savings.
The Budget Factor
If you find a TP08 on clearance for $25 and the TP08S is $45, the original TP08 is a tempting buy. If you follow the rules for probe care, never submerge the wires, don’t kink them, and keep them away from direct flare-ups, the original model will serve you well. However, at their standard retail prices, the difference is usually less than $10.
In that scenario, the TP08S is always the better purchase.
The Learning Curve
Both devices use a somewhat dated “button-mashing” interface. Unlike a smartphone app where you just tap a number, these require you to hold down buttons to scroll through temperatures. The TP08S has slightly better labeling on the buttons, making the initial setup less of a headache.
If you aren’t tech-savvy and hate reading manuals, you might struggle with both, but the TP08S is the lesser of two evils.
Range and Environment
Both units boast a 300-foot range. In reality, that means about 100 to 150 feet if you have to go through multiple walls or a brick fireplace. If you live in a large house or have a yard with lots of obstructions, the improved syncing of the TP08S is a major advantage.
It saves you from the frustration of having to go back outside to re-pair the device.
Frequently Asked Questions
Is the ThermoPro TP08S waterproof?
No, the TP08S is water-resistant but not waterproof. You can wipe it down with a damp cloth, and it can handle some light humidity, but the transmitter ports and the battery compartment are not sealed against heavy rain. If you leave it out in a downpour, it will likely fail.
Always store the units indoors when not in use.
Can I use TP08 probes with a TP08S unit?
Yes, the probes are generally interchangeable as they use the same 3.5mm jack. However, using the older TP08 probes will lower your heat resistance. For the best accuracy and durability, it’s best to use the specific probes designed for the TP08S.
Why does my TP08S show a wildly wrong temperature?
This usually happens if the probe is not pushed all the way into the transmitter. You need to hear or feel a “click” to ensure a clean connection. If it’s still off, the probe may have moisture inside the wire mesh.
You can sometimes fix this by placing the probe in an oven at 250°F for an hour to dry out the internals.
How long do the batteries last in these units?
Both models are very efficient. If you use high-quality alkaline batteries, you can expect about 6 to 8 months of regular weekend use. Unlike Bluetooth thermometers that drain batteries quickly to maintain a signal, the RF frequency used by the TP08 series is very low-power.
Be sure to check NIST guidelines for temperature calibration if you ever doubt the reading after a battery change.
The Bottom Line
The ThermoPro TP08S is the clear winner for anyone looking for a dependable, long-range smoker thermometer. It took the core strengths of the original TP08, the great range and the dual-probe monitoring, and fixed the reliability issues that made the original a gamble. The improved probes alone are worth the small price increase, as they will save you the cost of buying replacements every few months.
If you are a casual griller who only uses a thermometer once or twice a year, the original TP08 is a fine budget alternative if you find it at a steep discount. But for the serious hobbyist, the “S” model is the standard.
Check the current price of the ThermoPro TP08S before you start your next cook.
Note: Prices and availability are subject to change based on retailer stock. Always verify the current version of the product before purchasing, as manufacturers sometimes update internal components without changing the model name.
