TM-747DU / TENMARS เครื่องบันทึกอุณหภูมิ Datalogging Thermometer 4 Channel. Backlit LCD display with maximum readings of 9999..Large display for simultaneous reading of the 4 channels.
TM-223 TENMARS เครื่องวัดแสงยูวี Pocket Size UVAB Light Meter
is ideal for measuring mercury, xenon, metal halide or fluorescent lamps, commonly used for studies in the UVA region, as well as sunlight.