ที่ใส่แบตเตอรี่แบบ D-Cell 10 ชิ้น สำหรับเพิ่มแรงดันไฟฟ้า เหมาะสำหรับการทดลองวงจรในโครงการ STEM Education ในห้องปฏิบัติการของโรงเรียน

7'' Video Baby Monitor With 4X Zoom Camera No WiFi Two Way Audio Night Vision 5000mAh Battery Protection Surveillance Video Cam

Dekco 2/4/6/8pcs Solar WiFi Camera 3MP 100% Wire-Free 5000mAh Battery Two-way Audio Security Camera Wireless PTZ CCTV Camera

Waterproof Mini Amplifier Microphone Speaker High Sensitive Two Way Audio Input/Output Mic for CCTV Security Camera DVR System

Woolink 2PCS 2K WiFi Security Cameras Outdoor Wireless Solar Surveillance Camera Two Way Audio Waterproof Motion Human Alert

Color Night Vision 4MP Dual Lens Dual Screen Wifi Solar PTZ IP Security Camera Outdoor 4G Wireless CCTV Surveillance Camera 4MP

JOOAN 5MP 3MP WiFi IP Camera Ai Tracking Two-way audio Home Security Smart Baby Monitor

Hikvision Compatible 4K PoE IP Camera 8MP Dual Lens 180° Panoramic Wide Angle Full-Color Human/Vehicle Detection Two-Way Audio

Electronic Automatic Smart Door Lock 3D Face Recognition Fingerprint Keyless Password Wifi Camera Rfid Card Home Lock With tuya

8MP 4K Wifi PTZ IP Camera Outdoor 5X Optical Zoom Speed Dome Camera Auto Tracking Color Night Vision Metal Security Camera CamHi

Jaxcam 5MP Wifi Tuya Smart Life Camera Monitoring Via Infrared Mobile Phone Night Vision 360°Tracking PTZ Surveillance Camera

2PCs Mini WiFi camera 4MP 2K HD ICsee Surveillance Camera with Magnetic Base Night Vision Two Ways Audio Home Security Security

4K 8MP WiFi PTZ Camera Dual Lens Dual Screen Outdoor IP66 Waterproof Ai Human Auto Tracking Wireless Home Surveillance Camera

LII AUDIO A2 Crossover Baffle System Crossover Two-way Speaker Woofer 300HZ Left And Right Second-Order Frequency Divisi (1Pair)

JBL CLIP4 Portable Bluetooth Speaker, Upgraded Sound Quality, Superior Audio Performance to CLIP3 for Outdoor Music Enjoyment

SOTAMIA 2Pcs 3 Inch Portable Audio Speaker 4 Ohm 8 Ohm 20W Full Range Sound Speaker Rubber Edge Loudspeaker DIY Home Audio

SmarDeer IP66 Outdoor Waterproof Smart Lock,3D Facial & Palm Vein Recognition Door Lock,Tuya WiFi Keyless Entry Security Lock

JOOAN 5K WiFi PTZ Camera Outdoor Three Screen AI Tracking Night Vision Waterproof Security CCTV Surveillance

Yoosee 8MP Dual Lens 2 Screen WiFi Camera PIR Human Detection Auto Tracking IP66 Waterproof Outdoor Security CCTV Surveillance C

Outdoor Dual Lens 4K 8MP POE PTZ IP Camera Home Security Camera Video CCTV Surveillance Onvif ICSEE Camera Dual Lens Dual-Screen

XMEYE 8CH NVR Kit 4K 5XZOOM Auto Focus 8MP Ai Face Detect Security Camera Two Way Audio Waterproof Video Surveillance Camera Set

WIFI Support Tuya App Narrow Waterproof Facial Recognition Fingerprint Lock RFID Card Code Keyless Video Call Electronic Lock

Tuya 5G Wifi IP Camera Outdoor 5MP Metal Bullet Waterproof Wireless Surveillance Auto Tracking Color Night Vision Security Cam

5MP 2.4G/5G Wifi Mini Camera 2400mAh Battery Night Vision Motion Detection Two-Way Audio Wireless Home Security Camera O-Kam Pro

2K HD WiFi Window Security Camera 2.4G Wireless Indoor Surveillance Cam Two Way Audio Night Vision Motion Detection Support 128GB SD Card Easy Adhesive Installation Home Monitor Camera

4K 8MP PTZ Wireless Surveillance Vedio 4G SIM/Wifi Камера 30X Zoom Two Way Audio Humanoid Tracking Array Laser IR 100M

SeeTong SO-NY415 Sensor 4K 8MP Security Surveillance Vedio POE Камера 5X Optical Zoom Two Way Audio IR&Color Night Version

5MP 2.4G/5G WIFI Indoor PTZ Security Camera With 5X Zoom Two Way Audio Human Detection O-Kam Pro App Compatible For Baby Home

8MP Wifi Surveillance Camera PTZ Wireless IP Camera 8X Zoom AI Human Tracking Two-way Audio Color Night Vision Security Cam CCTV

Baofeng SW-9 Walkie Talkie AM/FM/LSB/SW Full Band Receiver Type-C Charging 10W 1000CH NOAA Bluetooth Audio Program Radio Two Way

Srihome 3MP HD Outdoor Wi-Fi POE Camera IP66 Weatherproof Camera Color Night Vision Audio Bullet Camera SH035

SriHome 5MP UHD 2.4/5G WIFI IP Camera Smart Home Indoor Wireless Surveillance Audio Cam Automatic Tracking Security Baby Monitor

8MP Wifi PTZ IP Camera Outdoor Dual Lens Dual Screen Color Night Vision CCTV Security Surveillance Camera Wireless Icsee IP Cam

5MP Wireless WiFi Indoor Surveillance Camera Night Vision PTZ Two-way Voice Security Protection HD Smart Home P6 Slite Robot Cam

SeeTong SO-NY415 Sensor 4K 8MP Surveillance Vedio POE Security Камера 3.6mm Two Way Audio IR&Color Night Version

Hikvision 8MP IP Camera DS-2CD2387G3-LIS2UY/SRB Smart Hybrid Light ColorVu 2-Way Audio Turret Camera Red Blue Light Audio Alarm

ANNKE WCD1012 10MP Dual Lens PTZ Camera 2.4G 12X wifi security camera Color Night Vision 1/2/4 PCS outdoor surveillance camera