Baseball & Softball
Measure pitch speed, exit velocity and throws from anywhere on the field
The TAG One reads from 20 to 130 feet, from 20 to 225 mph, accurate to within 1 mph. It works in a cage, on a mound or behind a net. Set it on its tripod, open the app, and the number is on your phone before the ball stops rolling.
What it measures
One device, three numbers that actually matter to a baseball or softball player.
Pitch velocity
Every pitch in a bullpen or a live at-bat, from the mound or from a machine. Readings land on your phone as the radar detects them, so nobody has to stand behind the backstop calling numbers out.
Exit velocity
Off a tee, off a machine or off live pitching. Exit velo is the number recruiters ask for, and the one that moves as a hitter gets stronger, so it rewards tracking session over session rather than guessing.
Throw velocity
Catcher throwdowns to second, infield across the diamond, outfield to the cut. Directional filtering means one setup can capture the pitch coming in and the throw going out in the same sequence.
Setting it up
The TAG One uses Doppler radar. It emits radio waves that reflect off the ball in flight, so three things decide whether you get a clean reading: how far away it sits, where it points, and which way the ball is travelling.
1. Distance
Place the TAG One between 20 and 130 feet from the mound, the batter or the net. If readings drop out, back up a few feet before you change anything else. Being too close is the most common cause, not being too far.
Working range: 20 to 130 feet.
2. Alignment
Point the front of the device, the face with the blue TAG logo, directly along the ball's path. Keep it roughly level. Tilting it far up or down is the second most common reason readings go missing.
3. Direction
Directional filtering lets the TAG One separate what is coming toward it from what is going away. That is what allows a single placement to read a pitch arriving and a ball leaving the bat on the same swing.
The one rule for hitting
For any mode that measures exit velocity, put the TAG One behind the batter. The radar should watch the ball travel away from it. Balls hit toward the device produce unreliable readings, so behind the batter is required in some hitting modes and recommended in all of them.
Where to put it, by drill
Five setups cover almost everything a team does in a week.
| Drill | Where the TAG One goes | What you get |
|---|---|---|
| Bullpen | Behind the pitcher, aligned down the lane | Clean pitch speed with nothing else in the flight path. The best option when velocity is the only number you want. |
| Live BP | Behind the catcher, which puts it behind the batter | Pitch speed in and exit velocity out, on the same swing, from one placement. The most efficient setup for a full session. |
| Tee work & soft toss | Behind the batter, looking toward the net | Exit velocity on every rep, indoors or out. Never place it in front of the net; the ball would be travelling into the radar. |
| Cage sessions | Behind the batter, down the length of the cage | Same as tee work. Doppler reads the ball rather than the light, so a cage is no harder than a field. |
| Catcher throwdowns | Behind the catcher | The pitch arriving and the throw to second going out, a complete defensive sequence from one device. |
Softball
Same device, same setup logic, same numbers. Fastpitch is thrown from a shorter distance than baseball, so there is less room behind the circle. Behind the catcher tends to be the practical placement, and it still gives you pitch speed in and exit velocity out on the same swing.
Why players choose the TAG One
AiCE coaching, built in
Sport-specific feedback on what the numbers mean. No other radar in this class offers it.
No subscription
The app and every feature are included. Competitors charge monthly for theirs.
Hands-free
Mount it and coach. Nobody has to stand there holding a gun and reading a screen.
Video with the number on it
Captures 4 seconds before and 2 after, with the speed on the clip.
Session history
Every rep saved to the cloud, filterable by date, exportable to .csv.
Built for a bat bag
2.5 oz, IP67 waterproof and dustproof, 6 hour battery.
Weighing it against another radar? See the full comparison against Pocket Radar and Stalker
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TAG One Sports Radar
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$299.99
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Baseball and softball questions
Does it work with a pitching machine?+
Yes, the TAG One can be placed behind the pitching machine or behind the batter, just like a live game situation.
Will it work indoors, in a cage?+
Yes. Doppler radar reads the ball's motion rather than light, so a cage or an indoor facility is no different from a field. Place it behind the batter, align it with the ball's path and keep it inside the working range.
Can it read pitch speed and exit velocity at the same time?+
Yes. Put it behind the catcher and directional filtering separates the pitch coming in from the ball going out, so you get both numbers from one placement on the same swing.
Why do I have to stand behind the batter for exit velocity?+
The radar reads a ball travelling away from it far more reliably than one coming toward it. Hitting into the device produces odd readings, which is why behind the batter is required in some hitting modes and recommended in all of them.
Can a whole team use one device?+
Yes. Create a profile for each athlete, set up multiple devices under one account, and share a live session with coaches or parents. Every session saves to the cloud, so you can compare an athlete against their own history rather than against a guess.
Why am I getting missed readings?+
Almost always distance or angle. Back up a few feet first, since too close is more common than too far. Then check the front of the device is pointed along the ball's path and sitting roughly level. If it still will not read, email support@tagsports.ai.
Is there a subscription?+
No. The TAG Sports app is free and there are no subscriptions required. AiCE, video capture and session history are all included with the device.
Start measuring instead of guessing
$299.99, everything in the box, no subscription. Free shipping and 60 days to change your mind.
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