Count dates greater than or equal to another date. =COUNTIF(B2:B10,>=6/1/2014) Count the number of cells in the range B2:B10 with a date greater than or equal to 6/1/2014. Count dates greater than or equal to a date in another cell, minus x days. =COUNTIF(B2:B10,>=&B2-7) Count the number of cells in the range B2:B10 with a date greater than or equal to the date in B2 minus 7 days.
A polygraph is a machine, or a test using said machine, which measures the changes in a person's body, such as pulse, breathing rate, and skin temperature.It is used as a lie detection test.It is based on the principle that when lying, one will become nervous and have an increased pulse and need for air. polygraph is a machine, or a test using said machine, which measures the changes in a person's body, such as pulse, breathing rate, and skin temperature.
At PCE Instruments you will find both contact and non-contact thermo-hygrometers as well as devices for measuring and recording temperature. There are thermometers to measure different temperature ranges between -200 and 1800ÂºC. Measurement of temperature is done in many different sectors.We also offer thermometers that can indicate temperature in ÂºC, K (Kelvin) and ÂºF, such as the PCE-8 80 thermometer, as well as others that are water resistant.A wide range of thermal elements and type-K sensors are available for thermometers. FLUKE 61 Thermometers (Infrared Thermometer for non-contact and accurate measurements, range -18 ... +275 C). - PCE-777 Thermometers (Temperature testers to measure large distances, up to +260 C, relationship measurement). - FLUKE 62 Thermometers (Infrared Thermometer with a backlit display, range -30 ...