Due to the excellent security system we have. you can rest assured us for all the transactions made, be it online or offline. We make sure that no third part is involved in between. In order to attain maximum client satisfaction, we strictly check the product quality on several counts prior to final dispatch. General: CALSYS 1700BB calibration source is a highly stable standard Black Body Furnace for calibrating non contact IR thermometer for the wide temperature range of 500 το 1700 ο C. The unique feature of this Black Body Furnace is large temperature controlled black body target with a diameter of 29 mm which offer large view area for IR Thermometer.