YF-20 Sound Level Meter

Used for testing noise levels in almost any environment including factories, offices and homes. Range: 40 to 120dB. Features include: Double analogue scale, battery self-test, single switch operation and can be user calibrated. Supplied with carry case and 9V battery.

Digital Light Level Meter

TM-201
Functions:range 200 200,000 lux, 20 2,000 foot candles.
Data hold, max hold and zero adjustment features.
1.5m flexible sensor cable.