Introduction In a city like Delhi, where temperature fluctuations can range from scorching summers to cold winters, maintaining a stable environment for temperature-sensitive products is a challenge. For pharmaceutical companies, food distributors, and healthcare providers, even a few degrees of variation can cause massive losses. That’s why smart data loggers are now becoming essential tools for cold chain monitoring across Delhi NCR. From vaccine transportation to food storage, these temperature & humidity data loggers in Delhi ensure that every product stays within the right temperature range — every minute, every mile. What is a Cold Chain and Why Does It