Solution needed. What is the range of wireless cameras ? (any extender)

Hello, We are looking for a security camera solution for our business. Item #11. Name: Security camera 2. Quantity: 25 (24 outdoor, 1 indoor) prefer solar 3. Video quality: 1080p is enough, nightvision 4. Camera features: Wire-free, durable (harsh weather condition, 4 season, windy) What is the temperature range? Here it reaches even -40 degrees celsius to 40 degree celsius in summer. Item #21. Name: Recorder 2. Quantity: 1 Item #3 1. Name: Signal Extender 2. Quantity: Please specify since we know we need signal extenders for sure. Please find the attached picture for range reference. It needs to at least cover 300-400m for its signal