EKO Instruments Medición de conductividad térmica Unique range of thermal conductivity testers for a quick inspection of materials. HC-10 Portable Thermal Conductivity Tester. Materials tested from the top side. Measures within 60 seconds. HC-121 HC-121 is used to check the performance (Good/non good) of vacuum insulator panels (VIP) by measuring the thermal conductivity by means of heat loss. Volver