Yorkie™ is a pocket-sized, passive handheld receiver for covert detection of contraband cell phones, with a colour touchscreen, silent vibration alerts and a charging dock that turns it into a 24/7 desk monitor.
Yorkie™ contraband cell phone detector is a handheld receiver designed for covert wireless contraband detection. Yorkie’s light weight, sleek profile and colour touchscreen make it ideal for all day use by security personnel, corrections officers and any law enforcement agent requiring a NO CELL PHONE policy in their facility. It is small enough to fit into most pockets to offer vibrating alerts all day to security personnel. This dedicated receiver is ultra-sensitive and able to sniff out all active cell phone use up to 45 metres away using any removable SMA antenna. And since the receiver is passive and does not communicate nor intercept any cellular data at all, it is completely legal and RF invisible.
Users can also adjust threshold levels instantly and set attenuation for noisy RF floors for any facility.
Yorkie’s internal battery is easily charged in the included dock which also allows the unit to become a 24-7 contraband phone detector and monitor right from your desk.
Yorkie includes vibrating and audible alerts but those can be toggled off for more covert RF sweeps in prisons, government facilities, military bases, confidential board room meetings and even call centres that do not allow cell phones.
| Environment | Interference | Approximate Distance |
| Indoors | None (line of sight) | 150 feet |
| Indoors | Walls, windows, doors, etc. | 75 feet |
| Indoors | Rebar concrete or steel | 40 feet |
| Outdoor use | None (line of sight) | 1/2 mile |
| Outdoor use | Buildings, trees, etc. | 125 feet |
| Yorkie™ | Yorkie-Pro™ | |
|---|---|---|
| Best for | Covert, all-day cell phone detection | Full-spectrum wireless sweeps |
| Detects | Cellular devices and GPS trackers | Cellular (3G/4G/5G), Wi-Fi, Bluetooth and BLE, plus AirTags, SmartTags, Tile and GPS trackers |
| Frequency range | 600 – 3800 MHz | 690 – 2700 MHz and 4.9 – 5.9 GHz |
| Detection range | Up to 150 ft indoors; up to ½ mile outdoors (line of sight) | About 150 ft indoors; up to ¼ mile outdoors with the DF antenna |
| Locating | Vibration increases as the signal grows stronger | Direction-finding |
| Battery | Up to 4 hours, plus charging dock | 4–6 hours typical |
| Display | 240 × 320 sunlight-readable colour touchscreen | 270 × 480 sunlight-readable colour touchscreen |
| Frequency Range | 600-3800 MHz (includes all cellular devices as well as GPS trackers) |
|---|---|
| Dynamic Range | 70 dB |
| Sensitivity | -90 dBm |
| Selectivity Rejection | Better than 40 dB |
| Receiving Modes | High-speed active scanning |
| Antennas Supported | Removable omni-directional SMA connection |
| Power Requirements | Internal built-in 3.2 Ah Li-Ion battery / external 12 VDC nominal |
| Charging | 4-5 hours (may be charged while in operation but not recommended for daily use) |
| Battery Runtime | Up to 4 hours |
| Display & Control | 240 x 320 sunlight readable color TFT with a resistive touch screen |
| Unit Dimensions | 5.5” x 3” x 1.25” |
| Dock Dimensions | 4” x 3” x 2” |
| Docked Use | Dual fans with manual switch for prolonged operation during charging |
| Ports | Mini-USB |
| Alerts | Vibration (toggleable) and visible (blue LED on top of unit) |
| Sound | Audible feedback from touchscreen taps |
| Included Accessories | Omni-directional SMA antenna, 12 VDC power adapter, charging dock, carrying case |
No. The Yorkie cell phone detector is a precision RF cellular scanning device that identifies cell phone activity (both standby mode and active modes) and assists in locating them. It is a wireless tool used by security officers and personnel that require a NO WIRELESS security policy.
Up to 150 feet (about 45 metres) indoors with a clear line of sight, around 75 feet through walls, windows and doors, and around 40 feet through rebar concrete or steel. Outdoors, up to ½ mile with a clear line of sight. Range varies with the environment.
Yes. Yorkie vibrates with more frequency as the signal grows stronger.
Yorkie can detect cell phones in the standby mode but keep in mind when a phone is ON in standby, it is not constantly transmitting. Phones register to the local cell tower/base stations at different intervals that the tower/carrier determines (could be every few seconds, minutes, and we have seen up to 20 minutes). When a phone registers it is a short pulse less than 1 sec so the BLUE LED will light up quickly and the unit will vibrate. On the display, the watermark above the signal strength bar would also indicate that a pulse of RF energy was detected too. If you take your phone and put it next to Yorkie and shut off your phone completely wait a few minutes then turn the phone on your phone should try to register to the base station and you should see a short flash on the Yorkie.
Yes. The vibrating and audible alerts can be toggled off for more covert sweeps.
Up to 4 hours. Charging takes 4–5 hours, and the included dock lets Yorkie run as a 24/7 desk monitor.
Yes. Its 600–3800 MHz range includes GPS trackers, so it can help locate hidden trackers on vehicles.
Yorkie™ datasheet (PDF): request a copy by email.
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