REED Instruments R4700SD Digital Environmental Meter with Data Logging - Temperature, Humidity, Light & Air Quality Monitor for HVAC, Laboratories & Industrial Use

Measures air velocity/temperature, relative humidity, light, and contact temperature

Air velocity is measured in m/s, ft/min, km/h, mph or knots, Light levels are measured in foot-candles or lux, Temperature is measured in °C or °F

Data hold and Min/Max functions

Real-time data logger with integrated SD memory card

Includes Data Logging Environmental Meter, Multi-Function Probe, Hard Carrying Case, and Batteries