A home-made and home-developed sensor network was proposed and developed in this paper for indoor air quality monitoring. The network consists of a base station connected to internet and several autonomous nodes equipped with different sensors to measure temperature, humidity, light and air quality. A specific program made with Labview is created to configure and supervise the operation and the measurements of the network. The communication between nodes and host is based on the standard IEEE 802.15.4 (Zig-Bee protocol) using the XBee module of Maxstream and the communication between host and PC is performed through an USB interface.