Know when police gear is near — anywhere in Kentucky.
From Louisville (pop. 624,444) across all 50 of its biggest cities, Kentucky law-enforcement gear broadcasts Bluetooth and Wi-Fi signatures everywhere it goes. Cop Spotter listens for them — green means clear, red-and-blue means near.
Built in small batches. No subscription. No account.
Coverage across the state.
Pick your city for local coverage.
Jefferson County · pop. 624,444
Fayette County · pop. 320,347
Fayette County · pop. 314,488
Boyd County · pop. 288,649
Warren County · pop. 63,616
Daviess County · pop. 59,042
Kenton County · pop. 40,997
Madison County · pop. 33,533
Scott County · pop. 32,356
Boone County · pop. 32,227
Christian County · pop. 32,205
Jessamine County · pop. 29,754
Hardin County · pop. 29,678
Henderson County · pop. 28,890
Franklin County · pop. 28,391
Jefferson County · pop. 26,946
Kenton County · pop. 26,819
Jefferson County · pop. 25,813
McCracken County · pop. 24,864
Jefferson County · pop. 22,756
Hardin County · pop. 22,387
Boyd County · pop. 21,108
Jefferson County · pop. 19,967
Hopkins County · pop. 19,539
Calloway County · pop. 18,954
Kenton County · pop. 18,797
Clark County · pop. 18,446
Jefferson County · pop. 18,409
Jefferson County · pop. 17,472
Jefferson County · pop. 17,134
Boyle County · pop. 16,690
Campbell County · pop. 16,398
Boone County · pop. 15,926
Jefferson County · pop. 15,713
Campbell County · pop. 15,354
Shelby County · pop. 15,253
Jefferson County · pop. 15,167
Madison County · pop. 14,882
Barren County · pop. 14,470
Bullitt County · pop. 14,028
Christian County · pop. 13,685
Nelson County · pop. 13,091
Bullitt County · pop. 11,967
Pulaski County · pop. 11,439
Jefferson County · pop. 11,372
Taylor County · pop. 11,237
Anderson County · pop. 11,103
Bell County · pop. 10,730
Hardin County · pop. 10,124
Graves County · pop. 10,080
The signature database is built from public registries — Bluetooth SIG company IDs, IEEE hardware prefixes, and the known broadcast fingerprints of the gear itself.
Axon body cameras announce themselves over Bluetooth so docks can find them — including a hardware signature that survives the address rotation newer cameras use to hide. If a bodycam is close, Cop Spotter knows.
Tasers and Axon vehicle gear broadcast their own Bluetooth identities. Same family, same tell — the spotter matches them against the verified Axon signature set.
Flock safety-camera accessories — extended batteries, setup hotspots — leak recognizable Bluetooth names and Wi-Fi hardware prefixes. Cop Spotter watches both radios.
Modern police radios carry Bluetooth for mics and earpieces, and their hardware shows up in the air with manufacturer fingerprints. A radio match strobes the light exactly like every other gear type — nothing is second-class.
AirTags, SmartTags, Tiles and other tracking tags call home over Bluetooth. Cop Spotter listens for them too — when one is close enough to be traveling with you, the light pulses purple, and the pulse quickens as you get closer, so you can walk it down.
Skimmers hidden inside pumps and card readers phone home through cheap Bluetooth serial modules — and those modules advertise. When one is close, the light blinks amber before your card goes in.
Also in the database: Utility BodyWorn bodycams, Axon Fleet in-car systems, WatchGuard & Digital Ally in-car video, police drones (DJI and anything flying Remote ID), Stryker LIFEPAK ambulance monitors, Cradlepoint patrol-car routers, and Geotab fleet telematics — 103 verified hardware fingerprints in all.
No screen to read. One light tells you everything.
The board continuously scans Bluetooth and Wi-Fi broadcasts — the public advertisements devices send out so other equipment can discover them.
Every broadcast is checked against the signature database: company IDs, service UUIDs, hardware prefixes, and device names known to belong to police equipment, tracking tags, and skimmer hardware.
When a signature matches, the light answers in color — every gear type counts, radios included. Cooldowns between alerts keep the light meaningful instead of constant.
No modes, no menus — Cop Spotter listens for everything at once, and the color names what it heard.
Purple and amber only fire at close range — close enough to be on you or your car — so a crowd full of other people’s trackers doesn’t cry wolf.
Asked by buyers across Kentucky.
Yes — it needs no network, app, or account. The signatures it matches are the same in Louisville as in the smallest town in Kentucky.
$50 one time — shipping included (U.S.), no tax added, no subscription, ever.
The 50 biggest cities in Kentucky — listed below. The detector itself works anywhere in the state, page or no page.
Bodycams, Tasers, Flock camera accessories, radio gear, in-car video systems, police drones, LIFEPAK monitors, patrol-car routers, fleet telematics, hidden trackers, and skimmer modules — 103 verified hardware fingerprints.
Small batches, built to order.
The detector board, with the detection firmware loaded and the signature database installed. You add any USB-C power source — a power bank makes it pocket carry.
Buy now — $50Secure checkout via Stripe — shipping included, address collected at checkout (U.S.). Questions first? [email protected]
The same detector on your Android phone — all 103 signatures. It listens only, holds no internet permission, and collects nothing. Free, no account; the APK installs direct.
If it earns its keep, chip in: support goes straight into the next batch of boards.
Receive-only, by design. Cop Spotter listens to public broadcast advertisements that devices intentionally transmit for discovery. It does not intercept, decrypt, record, or interfere with any communication, and it transmits nothing.
Know your local laws. Rules around detection equipment vary by place. What the device does is legal in most of the U.S., but the responsibility for where and how you use it is yours.
No guarantees. Detection depends on the target gear being powered and advertising. This is an awareness tool, not a safety device.