Know when police gear is near — anywhere in Arkansas.
From Little Rock (pop. 202,591) across all 50 of its biggest cities, Arkansas 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.
Pulaski County · pop. 202,591
Sebastian County · pop. 88,194
Washington County · pop. 82,830
Washington County · pop. 77,859
Craighead County · pop. 73,907
Pulaski County · pop. 66,504
Faulkner County · pop. 64,980
Benton County · pop. 63,159
Jefferson County · pop. 44,772
Benton County · pop. 44,499
Garland County · pop. 35,635
Saline County · pop. 34,177
Pulaski County · pop. 30,517
Miller County · pop. 30,353
Pope County · pop. 29,166
Pulaski County · pop. 28,643
Benton County · pop. 27,999
Greene County · pop. 27,900
Lonoke County · pop. 25,587
Crittenden County · pop. 25,052
White County · pop. 24,196
Crawford County · pop. 23,081
Saline County · pop. 19,986
Union County · pop. 18,386
Pulaski County · pop. 17,931
Benton County · pop. 16,081
Mississippi County · pop. 14,694
St. Francis County · pop. 14,672
Boone County · pop. 13,138
Garland County · pop. 12,807
Baxter County · pop. 12,330
Crittenden County · pop. 12,292
Benton County · pop. 12,023
Columbia County · pop. 11,669
Ouachita County · pop. 11,347
Phillips County · pop. 11,109
Hot Spring County · pop. 10,928
Clark County · pop. 10,745
Independence County · pop. 10,668
Hempstead County · pop. 9,891
Drew County · pop. 9,820
Johnson County · pop. 9,433
Sebastian County · pop. 9,322
Arkansas County · pop. 9,056
Benton County · pop. 8,549
Cross County · pop. 8,193
White County · pop. 8,106
Jackson County · pop. 7,767
Phillips County · pop. 7,679
Mississippi County · pop. 7,233
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 Arkansas.
Yes — it needs no network, app, or account. The signatures it matches are the same in Little Rock as in the smallest town in Arkansas.
$50 one time — shipping included (U.S.), no tax added, no subscription, ever.
The 50 biggest cities in Arkansas — 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.