Buy ‘detector’ with Bitcoin Crypto-Currency – Spendabit

AlertWerks Photoelectric Smoke Detector

Bosch Mechanical Heat Detector

$28.99 at Newegg

Oil level overflow detector

$61.73 at Tietokonekauppa.fi

Lightning Detector 02020

$34.99 at Newegg

Gravity: Geiger Counter Module Ionizing Radiation Detector

$77.44 at The Pi Hut

V08 V2.2 OBD2 Bluetooth Diagnostic Tool & Fault Detector

$28.29 at obd2technology

V09H4-1 OBD2 Bluetooth 4.0 Diagnostic Tool - Car Fault Detector for Diagnostics

$17.33 at obd2technology

Grove - Sound Sensor/ Noise Detector

$7.67 at The Pi Hut

Dri-Mark AC Adapter for Tri Test Counterfeit Bill Detector 351TRIAD

$20.99 at Newegg

Pinpointer Metal Detector Black and Red

$47.59 at Bit Shopping

MD 300 Handheld Compact Metal Detector (Electronic Gadgets Category)

$49.95 at Gadgets Direct

GARRETT Handheld Metal Detector with Adjustable Sensitivity (Alarms & Security Category)

$107 at Gadgets Direct

Metal Detector with Shovel 160 cm

$54.20 at Bit Shopping

Pinpointer Metal Detector Black

$46.88 at Bit Shopping

Electronic Handheld Halogen Leak Detector with Leather Pouch (Professional Tools Category)

$62.95 at Gadgets Direct

LCD Screen Metal Detector with Headphones Black

$72.67 at Bit Shopping

LCD Screen Metal Detector with Headphones Black

$116 at Bit Shopping

Ring Alarm Motion Detector

$40.39 at Scan Computers

SparkFun Sound Detector (with Headers)

$18.04 at The Pi Hut

Handheld Metal Detector with Vibration Alert (GP 3003B1) (Alarms & Security Category)

$61.95 at Gadgets Direct

Viecar VP004 WiFi OBD2 Diagnostic Tool with USB/Type-C Interface - V1.5 Fault Detector

$38.87 at obd2technology

LCD Screen Metal Detector with Headphones Black

$83.91 at Bit Shopping

LCD Screen Metal Detector with Headphones Yellow

$88.54 at Bit Shopping

Wall Mount PIR Motion Detector with 80dB Alarm Siren (7 to 10 Meter / 110 Degrees) (Alarms & Security Category)

$21.95 at Gadgets Direct

Pen Non Contact Alarm AC Voltage Detector with LED illumination (90V to 1000V / 2 x AAA) (Professional Tools Category)

$14.95 at Gadgets Direct

Heiman Dual Beam Detector 150m

$106 at Tietokonekauppa.fi

M301 OBD2 Car Code Reader & Fault Detector | 9-18V Multi-System Diagnostic Scanner

$65.07 at obd2technology

Viecar VP001 Bluetooth OBD2 Fault Detector V2.2 – Car Diagnostic Tool

$36.12 at obd2technology

V07HU ELM327 OBD2 Car Fault Detector - USB Free Drive V1.5

$28.29 at obd2technology

Honeywell Ceiling Mount for Motion Detector

$46.99 at Newegg

Deutsch DTLED-24V DT Detector Kit

$17.30 at Ozautoelectrics

Deutsch DTLED-12V-1 LED Circuit Detector 12V Connector Kit

$18.19 at Ozautoelectrics

Ring Business Alarm Security Kit, 8-Piece (2nd Generation), Includes Base Station, Motion Detector, Keypad, Sensor and Range extender - White

Cassida OMNI ID OmniID Counterfeit Detector - Infrared - Magnetic Strip Detection - UV Light - U.S. Currency

Metal Detector Searching Gold Digger Treasure Hunter LCD Screen with Headphones Black

$133 at Bit Shopping

Metal Detector 20 cm Search Depth 300 cm LCD Display

$119 at Bit Shopping

Metal Detector Search Depth Up to 200 cm

$87.15 at Bit Shopping

Metal Detector with LED Indicator 300 cm

$75.13 at Bit Shopping

Cassida InstaCheck Counterfeit Detector - Infrared, Magnetic Strip Detection - U.S. Currency

Metal Detector 21 cm Search Depth 300 cm LCD Display

$79.89 at Bit Shopping

Anavi Gas Detector - Starter Kit

$47.05 at The Pi Hut

Metal Detector Handheld Search Depth Up to 60 cm

$50.81 at Bit Shopping

Foldable Digital Piano Keyboard (49 Key) (Electronic Gadgets Category)

$95.95 at Gadgets Direct

Metal Detector 160 cm

$51.55 at Bit Shopping

3.7" 12 x 48 LED Digital Desktop Display Board (Electronic Gadgets Category)

$56.95 at Gadgets Direct

BE602 SP-WTV01 Multi-Functional 1.8 Inches TFT Wrist Watch TV Player with FM -- Black (Electronic Gadgets Category)

$107 at Gadgets Direct

Viecar VP002 WiFi OBD-II Fault Detector V1.5 – Car Diagnostic Tool

$36.53 at obd2technology

9V Battery Torch with Money Detector Function (1 x 6F22) (Torches - UV Category)

$16.95 at Gadgets Direct

Viecar VP005 Bluetooth OBD2 Fault Detector & Diagnostic Tool

$36.44 at obd2technology

2.3 Inch Blue Backlit LCD Portable Altimeter / Barometer / Compass / Thermometer / Weather Forecast (Electronic Gadgets Category)

$50.95 at Gadgets Direct

DT 1130 EMF Meter for Electromagnetic Radiation Detector (50Hz to 2000MHz) (Multimeters Category)

$43.95 at Gadgets Direct

Clippable Detector Board V1.0

$5.84 at The Pi Hut

Beetle Handheld Vacuum Cleaner (2 x AA) (Electronic Gadgets Category)

$21.95 at Gadgets Direct

USB Rechargeable Electronic Lighter with White LED Light (Electronic Gadgets Category)

$23.95 at Gadgets Direct

1.2V / 1.5V / 9V / Button Battery Power Level Tester (Electronic Gadgets Category)

$13.95 at Gadgets Direct

6 LED Illuminated 30X Magnifier with UV Money Detector (2 x CR2016) (Microscopes & Magnifiers Category)

$13.95 at Gadgets Direct

2.2 Inch Blue Backlit LCD Portable Altimeter / Barometer / Compass / Thermometer / Weather Forecast (Electronic Gadgets Category)

$63.95 at Gadgets Direct

Deutsch DTLED-12V DT Detector Kit

$17.29 at Ozautoelectrics

Variable Length Flexible Battery Tester (1.5V / 9V) (Electronic Gadgets Category)

$14.95 at Gadgets Direct

BI207 25 millimetres 6V 30RPM High Torque Brass Gear Motor -- Silver (Electronic Gadgets Category)

$32.95 at Gadgets Direct