Komal Scientific Co. Supplies Portable Thermo-Hygrograph Machine. Komal Scientific Co. Offers different types of Testing instruments for paint, printing ink, powder coating, adhesive, resin, thinner, pigment etc. Portable Thermo-Hygrograph Machine is suited for laboratory uses. Portable Thermo-Hygrograph Machine records the ambient temperature from -15 degree to 40 degree C and relative humidity [0 to 100% RH] using the hair method. By Portable Thermo-Hygrograph Machine, indication recorded on a paper diagram. Portable Thermo-Hygrograph Machine is a battery operated instrument. Portable Thermo-Hygrograph Machine is available with push-button selection of five time ranges: 1, 7, 31, 62 and 93 days. It offers quartz movement.