The TEK2312 is a 4 in 1 meter which tests, Lux Light levels, Sound, Humidity, and temperature, with a 40 Megohm resistance range and offers the facility of a PC interface.
Features include:

• Light Lux from 0.1 up to 40,000 Lux
• Sound up to 130dB
• Humidity up to 95% RH
• Temperature 0.1°C to 750°C
• Resistance to 40 Megohms
• 3¾ digit, 4000 count LCD
• PC Interface, software included
• Auto power off
• Low battery indication
• Rubber housing, Pocketsize