N s dimple thermometers offers pneumatic type, round chart, temperature/ pressure recorders with single/ double pen for recording variation in temperature/ pressure in any process industry. These recorders are offered in two models namely 9 dx with 9" chart size and 10 dx with 10 1/2" chart size. The accuracy of both types of models is +/ 1 percent fsd. These are available in temperature ranges from -20 to 6000 c and pressure is from 1 to 1000 kg/cm2. All standard ranges of temp & pressure are available . The recording is done on the round graph paper with the help of high quality fine fibre tip pen. The chart clock has 24 hr revolution everyday. The chart clock is accessible in two versions one opera table on ac 220v 50hz and another with battery back up. Both models have provision for panel flush mounting or surface mounting.