Response Range: 5kHz–2700MHz. Dual analog and digital display for intuitive clarity. 1 × Module. Input Impedance: 50Ω. Also note that monitor settings may vary from computer to computer and may distort actual colors.
eBay
For Tuya ZigBee 3.0 Smart Water Leak Sensor Overflow Detector Security Alarm System Flood Leakage Sensor Monitor Home Assistant
Aliexpress UK
Detecting Range of RF Device: 0.05m-10m (Subjected to the Transmitting Power of the RF Device). With a signal strength indicator lights that can quickly find the signal source. Detect wireless cell phone and internet signal.
eBay
HEIMAN Zigbee 3.0 Fire alarm Smoke detector Smart Home system 2.4GHz High sensitivity Safety prevention Sensor Free Shipping
Aliexpress UK
1pcs Hidden Camera Detectors High Accuracy Hidden Magnetic Bug and Camera Detector, Portable Spy Camera Finder, 5 Levels Sensitivity 6 Modes, Wireless Rechargeable for Home, Car, Hotel, Travel Features: 1. 5 Modes & 2 Alert Type: 1.Wireless Signal Detection Mode find the hidden device transmitting the radio frequency from 1MHz to 6.5 GHz; 2. RF Detection Mode find the mini spy camera hidden in the corner; 3. Magnetic Detection Mode find the positioning and eavesdropping device; 4. Anti-theft Mode notify you immediately when the items was moved; 5.Flashlight. Vibration or buzzer alert is optional. .
eBay
HL-520B Portable FAKE Banknote Detecting Machine Mini Money Counterfeit Currency Checker for US Dollar Bill Notes Detector
Aliexpress UK
Beep detection. Detecting Range of RF Device: 0.05m-10m (Subjected to the Transmitting Power of the RF Device). With a signal strength indicator lights that can quickly find the signal source. Detect wireless cell phone and internet signal.
eBay
Wireless LED Motion Sensor Night Light Plug In Motion Detector Bedroom Staircase Closet Bedside Night Lamp 220V Battery Powered
Aliexpress UK
LED INDICATOR. 6VDC BATTERIES INCLUDED (CR2032, x2).
eBay
Wireless Night Lamp with Motion Sensor Detector Battery Powered LED Night Light for Room Corridor Closet Kitchen Toilet Stairs
Aliexpress UK
This product is a 7-in-1 anti-snooping multi-function detector, using high sensitivity magnetic field sensor, full-band RF IC. Detector 1. 4 in 1 Wireless CarPlay Adapter For iPhone Apple USB Wireless Dongle Plug ＆ Play.
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Bisofice Portable Mini Money Counter Counterfeit Bill Detector Automatic Money Detection By UV MG IR Image Paper Quality Size
Aliexpress UK
eBay
Portable Ultraviolet Purple Counterfeit Money Bill Detector Banknotes Cash Currency Desktop UV Light Magnifier Checker
Aliexpress UK
1pcs Hidden Camera Detectors High Accuracy Hidden Magnetic Bug and Camera Detector, Portable Spy Camera Finder, 5 Levels Sensitivity 6 Modes, Wireless Rechargeable for Home, Car, Hotel, Travel Features: 1. 5 Modes & 2 Alert Type: 1.Wireless Signal Detection Mode find the hidden device transmitting the radio frequency from 1MHz to 6.5 GHz; 2. RF Detection Mode find the mini spy camera hidden in the corner; 3. Magnetic Detection Mode find the positioning and eavesdropping device; 4. Anti-theft Mode notify you immediately when the items was moved; 5.Flashlight. Vibration or buzzer alert is optional. .
eBay
Ewelink Zigbee Door Sensor Wireless Magnetic Window Open Closed Alarm Detector Works With Zigbee2MQTT Alexa Google Need Gateway
Aliexpress UK