博茨瓦纳采购需求：室内LED屏幕、室内LED显示屏、室内LED视频墙

I'm looking to source indoor LED display screens that meet specific criteria for a project. The required pixel pitch should be at least 1.875mm, ensuring high resolution and clarity. The cabinet material needs to be durable, with excellent heat dissipation properties, and should provide effective dust and weather protection. Additionally, the screens must function within a storage temperature range of 0°C to +40°C and an operating temperature of -10°C to +40°C, with an operating humidity capacity of 80%. In terms of performance, I need a brightness level of 800cd/m² and support for a 16-bit grayscale. The contrast ratio should be at least 4000:1, and the viewing angle must be a minimum of 140°. Lastly, please confirm that the screens have a minimum Ingress Protection (IP) rating of IP 40, to ensure reliability in various environments. Looking forward to your prompt response with options that meet these specifications.