It has very low transmitting power and is not easy to be detected by conventional radio detectors. So K18 is your best choice. Conventional wireless wave eraser is unable to detect CDMA signal. It can detect magnetic suction positioner and bug in standby state.
eBay
MD-4090 Professional Metal Detector Underground Gold Detector High Accuracy Metal Finder Waterproof Search Coil Seeker Treasure
Aliexpress UK
Material: Acrylgehäuse und Elektronische Bauteile mit Laser Sensor. Größe: 8,5cm x 6,5cm x 3,7 cm. Thatch Roofing for Tiki Bar Artificial Straw Greenery Decoration 0.5 1M. High Pressure Washer Power Spray Gun Jet Lance Trigger Wash Water Car Hose Blitz.
eBay
TX-850 Metal Detector Underground Professional Depth 2.5m Scanner Search Finder Gold Detector Treasure Hunter Pinpointer 11inch
Aliexpress UK
1x E3F-20L/20C2 M12 NPN NC Laser Photoelectric Sensor (1 laser emitter and 1 laser detector). This sensor is NPN NC type. output type : NPN NC. Laser beam, red visible beam. Work humidity : 35~95%RH.
eBay
Wall Metal Detector Wall Scanner Metal Detector Electric Metal Wood Studs AC Live Wires Finder Electric Detection Instrument
Aliexpress UK
This Radar detector features a laser eye detector for a 360 degree laser detection and easy to install. Relative speed sensing auto shutdown feature will render your detector undetectable by currently available radar detector-detectors.
eBay
UNI-T 4 In 1 Metal Detector UT387E UT387S UT387LM Wall Scanners Wood AC Voltage Live Wire Stud Finder Wall Detector For Home
Aliexpress UK
Datum Green laser detector. Please check compatibility before buying
eBay
Waterproof Metal Detector Dive Pulse Pinpointer Treasure Coil Scuba Gold Detector with 9v USB Rechargeable Battery
Aliexpress UK
Tested and works fine takes one 9V rectangular battery (not included) comes with carry case/bag, leaflet and a couple of bits as shown. please check pictures as these form part of the description also comes with nothing else, just what's in the pics - will package well for shipping I used recycled materials for packaging will post on same or next working day after payment clears international shipping is through ebay global shipping
eBay
Wireless Infrared Motion Detector 433MHz eV1527 for Home Alarm System PIR Motion Sensor Detector
Aliexpress UK
The item features a laser eye detector for a 360-degree laser detection and is easy to install. Relative speed sensing auto shutdown feature will render your detector undetectable by currently available radar detector-detectors.
eBay
Black Metal Detector Handheld Metal Detection Outdoor Gold Finder Portable Scanner Depth Wall Detector Safe Checking
Aliexpress UK
Included Components LD-8 Universal Rotary Laser Receiver Detector with Rod Clamp. ✔️ BETTER ACCURACY: AdirPro Rotary Laser Detector boasts a working range of 100 feet. ✔️ WIDE COMPATIBILITY: Our Universal Rotary Laser Detector is compatible with any Red Rotary Lasers.
eBay
Beach Sand Scoop Shovel Metal Detector Sand Scoops Treasure Detecting Metal Detector Hunting Stainless Steel Tool Hex
Aliexpress UK