- Easy to use
- Measures sound light temperature amp humidity
- 1999 count large LCD display
- uses 1x 9V battery included The 4 in 1 multi-function environment meter has been designed to combine the functions of sound meter light meter humidity meter amp thermometer into one easy to use instrument with scores of practical applications in schools offices factories homes etc. Specifications Sound Meter Low 35-100d B High 65-130d B Frequency weighting ACResolution 0.1d B Light Ranges 20.00 200.0 2000 Lux 20000 Lux x 10 Lux Resolution 0.1 Lux Temperature Ranges Low-20deg C-200deg C-4deg F-200deg F High-20deg C-750deg C-4deg F-1440deg F Resolution 0.1deg C 0.1deg F Humidity Ranges 25-95 RHResolution 0.1 RHMeasurement rate 1.5 times per second nominal MAX HOLD amp DATA HOLD functions OL over range indication Low battery indication Type K thermocouple included Photo detector included Humidity probe included Carry case included Powered by 1 x 9V battery included