Cool Science Glass Ball Lamp - Touch the glass exterior to manipulate the colorful electric lighting to dance around the fingertips,demonstrating the concepts of voltage, current and lightning in a fascinating way | Great Decoration - Evil dragon and magic ball with lightning,let the party more atmosphere, and if you put them in your or your kid's room, it will be a fun night light or tabletop decoration | Safety - Environmentally friendly resin and glass, 8W low power, will not cause any damage to your health and safety | Perfect Gifts - For kids of all ages, for your children or grandchildren, and they won't get bored until the next birthday | Buy with Confidence - We have upgraded the process and updated the packaging, so it's not easy to go wrong, and we offer a 180-day warranty and 7/24 quick-response manual customer service, so just add it to your shopping cart and buy with confidence. I believe it will bring you different fun

The tester supports (720p, 960p, 1080p) CVI, TVI, AHD HD coaxial camera, support (CVBS) analog camera, audio signal input test: test sound is normal, it also comes with DC 12V 1A output port, can give Camera power supply | The tester supports VGA input, supports 1024 * 768, 1289 * 1024 resolution, requires VGA to enter the menu to select VGA mode | PTZ control: RS485 control, Baud 1200 ~ 115200bps, compatible with PELCO-D / P protocol. UTP cable / BNC cable test with indicator light, test distance up to 100-150 meters | 5-inch high-definition screen display, hand-held hook, easy and convenient, long-life lithium-ion polymer battery, can be used normally after charging for 4 hours, USB 2.0 interface provides 5V / 1A emergency power output, it can even be used as emergency mobile power (Only for Android phones) | The portable travel bag is packaged so that you can carry it on your hand, and you can place your pen and mobile phone, bid farewell to clunky boxes, and make your work easier.We are the original manufacturer of the tester, with quality assurance, one year replacement, and can customize the customer's brand, we can help you OEM for free (if you need to customize your own brand, please tell us your needs by e-mail)