Different commercial Wireless Sensor networking systems use IEEE 802.15.4 as a basis for their media access control mechanisms. IEEE 802.15.4 is a physical and media access layer standard for low rate WPANs (LR-WPAN). Various experimental Wireless Sensor Networks have been deployed in IGCAR with the different type of sensors. WSN Network monitoring and analyzer tools are useful during the software development phase to assist in network design and during deployment phase for assessment of RF environment and traffic analysis. During various development and deployment experiments, we have developed different network debugging and analyzer tools. In this paper, the hardware and software details of these tools have been presented along with implementation specifics. These tools were used during site survey assessment phase and were found very useful. Application specific uses are also described in this paper.