미세하게 누설되는 압축공기 찾는법
미세하게 누설되는 압축공기 찾는법
이걸 이용해서 만능 가스누설 탐지기를 만들어도 될 것 같습니다.
https://youtube.com/clip/UgkxnUlWLajfhlS2qwEvSOcKPZpRyIA30PCK?si=FxfF8kAqWE-khnBk
D88 Wireless bluetooth headset user's manual
D88 Wireless bluetooth headset user's manual Product model: D88 Bluetooth version: Bluetooth V5.49+BR+ EDR+BLE Supportmode:a2dp\avctp\avdtp\avrcp\hfp \spp\smp\att\gap\gatt\rfcommisdp\12capprofile Sensitivity:-90dBm Signal distance: 210 meters (without any large obstaclesin an ideal environment) Battery specifications: headset 3.7V/60mA, charging box, 3.7V/2000mA Play time: about 6 hours Talk time: about 6 hours Standby time: about 250 hours. Charging time: Charge the charging case for approximately 2-3 hours Headphone charging takes about 2-3 hours. Number of times the charging box charges the headset: 10 times for a single headset Functional operating instructions 1. power on Take the earphone out of the charging box and turn it on automatically; Auricular organ shape State, press and hold the earphone multi-function touch area for 2 seconds to power on. 2. Shut down Long press the multifunctional touch area of the earphone for about 3 seconds to turn off the earphone. Or put it...
