KASUNTEST Digital Lux Meter Photometer-Auto Ranging Light Meter 0.1 to 200000 Lux w/Max Min Avg,Hold,Backlight,Time and Units Function

KASUNTEST Professional Sound Level Meter Digital Noise Tester with Data Logger Function Range:30 to 130dB with Large LCD Display and Backlit

KASUNTEST Professional Sound Level Meter Digital Noise Tester Range:30 to 130dB with Large LCD Display and Backlit