Measures sound, light, temperature & humidity

The ADT-22 Compact 4-in-1 Multi-function Environment Meter measures Sound Levels, Light Levels, Humidity and Temperature.
This hand-held meter is extremely easy to use with a single rotary switch controlling all measurement functions.
The ADT-22 environment meter is supplied with a protective rubber boot, a K-Type temperature probe and a battery.
·Electret condenser microphone for sound level measuring with selectable A & C frequency weighting at fast time weighting
·Cosine corrected silicon diode sensor for Lux level with 4 selectable ranges 20, 200, 2000 & 20,000 Lux
·Semiconductor sensor for humidity measurements in %RH and ambient temperature in °C/°F
- Issued at 4 points :1 point Sound 94dB, 1 point K-Type Temperature 23°C, 1 point Humidity 35% @20C & 1 point Light 350 Lux.
Technical Specifications
ADT-22 Compact 4 in 1 Multi-Function Environment Meter
Sound Lux Humidity Temp Temp (K-Type)
Range 35~100dB 20~20,000 25~95%RH -20~+200°C -20~+1300°C (K-Type)
Resolution 0.1dB 0.01/0.1/1 Lux 0.1% 0.1°C 1.0°C
Accuracy ±3.5dB ±5%rdg +10digits ±5%RH ±3%Rdg 1°C ±3.5%Rdg 2°C
Power 9V PP3 battery
Dimensions 120 x 60 x 40mm
Weight 280g