This paper presents a ZigBee-enabled RFID along with the capabilities of WSN for an environmental monitoring system. The wireless technology used for communication in the project aims to overcome wiring or cabling problems within a building or structure that has space constraint or dense wiring for data transfer. There are two different analog sensors that are included in the design while the ADC module on-board XBee are conveniently utilized to read the analog output voltages of the sensors and no microcontroller is used. The network topology used is star topology and API frames were used to convert ADC values so that the monitoring software GUI is able to differentiate between each sensor node and convey the right information to the users. The RPSMA WSN module with helical and Wire antenna have the best LOS transmission range with an estimated value of 1.5 km while the PCB antenna has only the transmission range of about 250 m. On the other hand, humidity and temperature analog sensor (CC2A23) have an accuracy of ± 3 % and ± 1.15 °C respectively. It also has a maximum deviation of 7 % when tested in an actual environmental chamber. The sensors are also quite precise with the standard deviation of just under 0.5 % and 0.15 °C. The proposed design in this work is able to combine multiple sensors on a single platform that embeds both the RFID and WSN functionalities to improve the environmental monitoring system.