Tekpower TP8229 Auto-Range 5-in-1 Multi-functional Digital Multimeter,Lux,Sound Level and More,Better Mastech MS8229 DMM + Lux Meter + Humidity Meter + Sound Level Meter + Thermometer 20%-95% RH 40-100 dB 40000 LUX -4-1832F 0-200 KHz 0-100 uF LED / Sound Warning shows you where to plug the test leads Built-in Temperature & Humidity Sensors show you the environmental temperature and humidity Blue LED Back-lit LCD display