Digital Light/ LED Light Meter -PT620L Light Meter Digital Illuminance Meter Handheld Ambient Temperature Measurer, Range up to 200,000 Lux, Luxmeter with 4 Digit Color LCD Screen Range:1000/10000/200000 LUX;100/1000/20000 FC
Temperature & Humidity Meter -PT618 Digital Temperature Humidity Meter Professional Psychrometer Thermo-Hygrometer with Dew Point & Wet Bulb Temperature, Color LCD Backlight,