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Detector: 24 biggest discounts on AliExpress

We picked 24 detector from AliExpress with real orders and good reviews. Prices go from $1.15 to $1209, the average rating is 4.7 stars and the most popular one has 181.6k orders. Every product opens on AliExpress, where you pay with buyer protection.

Updated: 2026-11

  1. 1Fetal Doppler Heartbeat Detector for Baby, Heart Beat Monitor, LCD Backlight Pulse Meter, -72%Fetal Doppler Heartbeat Detector for Baby, Heart Beat Monitor, LCD Backlight Pulse Meter, No Radiation$28.76 $103★ 4.6 · 95 soldView on AliExpress →
  2. 22026 XINGCE X5-AI Skin Analyzer 11 Spectrum Facial Detector AI Aging Acne Pigment Tester S-70%2026 XINGCE X5-AI Skin Analyzer 11 Spectrum Facial Detector AI Aging Acne Pigment Tester Salon Skin Machine$1209 $404710k soldView on AliExpress →
  3. 32026 XINGCE X5-AI Skin Analyzer 11 Spectrum Facial Detector AI Aging Acne Pigment Tester S-70%2026 XINGCE X5-AI Skin Analyzer 11 Spectrum Facial Detector AI Aging Acne Pigment Tester Salon Skin Machine$712 $2390★ 5.0 · 3.8k soldView on AliExpress →
  4. 4Tuya Zigbee Temperature Humidity Moisture Detector Smart Soil Tester Moisture Sensor Phone-66%Tuya Zigbee Temperature Humidity Moisture Detector Smart Soil Tester Moisture Sensor Phone$5.78 $17.14★ 4.5 · 10k soldView on AliExpress →
  5. 52 Pack Tuya Smart WiFi Smoke Detector With Real-Time APP Alerts Wireless Fire Sensor Alarm-66%2 Pack Tuya Smart WiFi Smoke Detector With Real-Time APP Alerts Wireless Fire Sensor Alarm$14.63 $42.49★ 4.9 · 10k soldView on AliExpress →
  6. 6Fish Tank Thermometer LCD Digital Aquarium Temperature Water Meter Aquarium Temp Detector -65%Fish Tank Thermometer LCD Digital Aquarium Temperature Water Meter Aquarium Temp Detector Fish Alarm Pet$1.15 $3.25★ 4.5 · 2.6k soldView on AliExpress →
  7. 7Fish Tank Thermometer Aquarium Adsorbable Digital Display Temperature Detector LCD Screen -64%Fish Tank Thermometer Aquarium Adsorbable Digital Display Temperature Detector LCD Screen Display Celsius$1.15 $3.16★ 4.5 · 181 soldView on AliExpress →
  8. 81pc Motion Sensor Night Light - Wireless LED Detector Lamp for Bedroom, Staircase, Closet,-63%1pc Motion Sensor Night Light - Wireless LED Detector Lamp for Bedroom, Staircase, Closet,$2.84 $7.61★ 4.5 · 181.6k soldView on AliExpress →
  9. 9Tuya Zigbee WiFi Human Presence Sensor MmWave Radar Detector With Luminance Sensor For Sm-63%Tuya Zigbee WiFi Human Presence Sensor MmWave Radar Detector With Luminance Sensor For Sm$8.10 $21.80★ 4.6 · 5k soldView on AliExpress →
  10. 10Tuya Zigbee Water Sensor Flood Leak Detector Water Linkage App Alarm Sensor for Kitchen/Ba-63%Tuya Zigbee Water Sensor Flood Leak Detector Water Linkage App Alarm Sensor for Kitchen/Ba$5.36 $14.43★ 4.7 · 4k soldView on AliExpress →
  11. 11395nm UV Pen FLaslight,Blacklight Flashlight w/ Clip Portable Detector for Hotel/Pet Urine-61%395nm UV Pen FLaslight,Blacklight Flashlight w/ Clip Portable Detector for Hotel/Pet Urine$1.99 $5.15★ 4.9 · 88.4k soldView on AliExpress →
  12. 12Tuya 2 in 1 Zigbee Mini PIR Motion Detector + Bright Lux Light Passive Infrared Security B-60%Tuya 2 in 1 Zigbee Mini PIR Motion Detector + Bright Lux Light Passive Infrared Security B$6.20 $15.54★ 4.5 · 5k soldView on AliExpress →
  13. 13Zigbee 24G Mmwave Radar Presence Sensor Human Detector Motion/Static Detection For Tuya Z2-58%Zigbee 24G Mmwave Radar Presence Sensor Human Detector Motion/Static Detection For Tuya Z2$3.68 $8.74★ 4.9 · 10k soldView on AliExpress →
  14. 14Tuya Smart WiFi Smoke Sensor Fire Protection Smoke Detector 85dB Sound Security System Fir-58%Tuya Smart WiFi Smoke Sensor Fire Protection Smoke Detector 85dB Sound Security System Fir$8.30 $19.79★ 4.9 · 10k soldView on AliExpress →
  15. 15Zigbee Work with Tuya PIR Motion Sensor Infrared Detector Mini Smart Human Body Sensor Rem-58%Zigbee Work with Tuya PIR Motion Sensor Infrared Detector Mini Smart Human Body Sensor Rem$2.84 $6.80★ 4.9 · 5k soldView on AliExpress →
  16. 164MP HD 5G WiFi PTZ Camera Auto Tracking Cry Detector Home Indoor Security CCTV Surveillanc-58%4MP HD 5G WiFi PTZ Camera Auto Tracking Cry Detector Home Indoor Security CCTV Surveillance Cameras Baby$11.85 $28.20★ 4.4 · 544 soldView on AliExpress →
  17. 17MUFASHA Non-Contact Voltage Detector Electrical Pen AC Voltage Tester Smart Breakpoint Fin-58%MUFASHA Non-Contact Voltage Detector Electrical Pen AC Voltage Tester Smart Breakpoint Fin$4.94 $11.80★ 4.7 · 10k soldView on AliExpress →
  18. 18Aoyan Zigbee 3.0 Mini PIR Motion Sensor Human Motion Infrared Detector Security Alarm Work-57%Aoyan Zigbee 3.0 Mini PIR Motion Sensor Human Motion Infrared Detector Security Alarm Work$2.84 $6.66★ 4.9 · 10k soldView on AliExpress →
  19. 19Zigbee Temperature Humidity Moisture Detector Smart Soil Tester Moisture Sensor Phone App-57%Zigbee Temperature Humidity Moisture Detector Smart Soil Tester Moisture Sensor Phone App$5.78 $13.39★ 4.9 · 5k soldView on AliExpress →
  20. 20Tuya Zigbee Water Sensor Flood Leak Detector Water Linkage App Alarm Sensor for Kitchen/Ba-57%Tuya Zigbee Water Sensor Flood Leak Detector Water Linkage App Alarm Sensor for Kitchen/Ba$4.10 $9.50★ 4.9 · 10k soldView on AliExpress →
  21. 21ANENG A3005 Digital Multimeter Pen Testers Professional AC/DC Voltage Meter Live Zero Line-57%ANENG A3005 Digital Multimeter Pen Testers Professional AC/DC Voltage Meter Live Zero Line Detector Buzzer$8.13 $18.99★ 4.8 · 982 soldView on AliExpress →
  22. 225in Display Wireless Infant Monitoring Device Digital Zoom Baby Safety Camera Built-in Tem-57%5in Display Wireless Infant Monitoring Device Digital Zoom Baby Safety Camera Built-in Temperature Detector$49.20 $114★ 4.9 · 10.7k soldView on AliExpress →
  23. 231-10pcs HC-SR501 Adjust IR Pyroelectric Infrared PIR Motion Sensor Detector Module For Ard-57%1-10pcs HC-SR501 Adjust IR Pyroelectric Infrared PIR Motion Sensor Detector Module For Ard$1.78 $4.10★ 4.9 · 5k soldView on AliExpress →
  24. 24PIR Motion Sensor E27 Bulb Socket Lamp Base AC110-220V Human Body Detector Home Automation-56%PIR Motion Sensor E27 Bulb Socket Lamp Base AC110-220V Human Body Detector Home Automation Auto On Off Light S$4.40 $9.99★ 4.8 · 72 soldView on AliExpress →

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