The R4700SD is a 6-in-1 environmental meter that measures air velocity, air temperature, ambient temperature, relative humidity, light and contact temperature measurements. Has the ability to capture sound level measurements using the R4700SD-SOUND adapter (optional). The R4700SD features Data hold, Max/Min functions, and an easy-to-read backlit LCD display. Using a SD card (max 16GB), a user can manually record up to 99 readings or automatically by selecting a desired sampling rate from 1 to 3600 seconds. Quickly generate an Excel file with raw data, all without the use of software. Optional accessories include a tripod and AC adapter for continuous long-term monitoring.

Features
Measures air velocity/temperature, relative humidity, light, and contact temperature
Measures sound level (dB) with R4700SD-SOUND (sold separately)
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
User selectable sampling rate from 1 to 3600 seconds
Easy-to-read backlit LCD display
Tripod mount for long-term monitoring
Low battery indicator and auto shut off