These films contain a mixture of two dyes namely, 2,6 dichloro phenol indophenol sodium salt (DCP) and cresol red (CR) indicator with different concentrations of chloral hydrate in poly (vinyl alcohol). The color of this film changes in two steps, i.e. from green to yellow and finally to red color. Due to irradiation, first the bleaching reaction for DCP takes place in the absorbed dose range up to about 17 kGy, followed by the transformation of CR to its acidic form due to the presence of chloral hydrate in the dose range up to 50 kGy. The response of these films can be modified by changing the chloral hydrate concentration and the ratio of the two dyes. As a result, these films can be used as a dosimeter in the two dose ranges. The dosimetric parameters, e.g. dose response, effect of relative humidity and temperature during irradiation on response as well as pre- and post-irradiation stability of these films are investigated.