5 คู่/ล็อต NO และ NC สองประเภท ชนิดมีสาย คอนแทคแม่เหล็ก สำหรับเซ็นเซอร์ประตูหน้าต่าง ระบบเตือนภัย

Invisible Illuminator 940NM Infrared 60 Degree 48 LED IR Lights for CCTV Security 940nm IR Camera Night Vision Cctv Fill Light

1000pcs Holographic Sealing Stickers，Tamper Proof Void Security Label，Warranty Serial Number Sticker，Customized Logo,50mmx10mm

2000 Pcs，Hologram Tamper Proof Stickers，Void Warranty Security Label，Unique Serial Number，Custom Logo，20x10mm

2MP WiFi Camera 2.4G Security Surveillance PTZ Night Vision Motion Detection Home Security Camera with 2 Antennas for Child

Zuru Surprise Toy Mini Brands Kawaii Anime Figure By Zuru Miniature Toys Mystery Blind Box Original Collectible Gift Toys

Men Work Gloves Soft Cowhide Driver Hunting Driving Farm Garden Welding Security Protection Safety Mechanic Glove Durable

RJ45 + DC 12V Power Lan Cable 5M/10M/15M/20M/30M 2 in 1 Network Extension Cable For IP Security Camera System

K2N ULAC K2S Anti-Theft Combination Lock Telescopic Helmet & Suitcase Lock Changeable Combination Security Lock Travel

10M/32.8Foot BNC Cable BNC+DC Power Video Extension Cable for CCTV DVR Camera Video Power Supply Security Surveillance Accessory

Mini X5 Camera Wireless 1080P Surveillance Security Video Cam Night Vision Motion Detect Camcorder Mini Cam Monitor Smart Home