User Manual
Extech HD450 Heavy Duty Datalogging Light Meter is a device used to measure the intensity of light. It can measure 40,000Fc or 400,000 Lux of light intensity and automatically stores 16,000 readings or manually stores/recalls 99 readings. The device also features peak mode, relative mode, max/min and data hold functions.
Application Note
The Extech 407228 Rugged pH/ORP/Temp Kit features a large 1.4-inch (36mm) LCD display that can show pH or mV and temperature (°C/°F) simultaneously. The meter has easy 2-point calibration (pH 7) and slope (pH 4 or pH 10) adjustments, along with a low battery indicator, Min/Max/Avg, auto-off and data hold. It has a built-in RS-232 PC interface and can be optionally equipped with the 407001 Data Acquisition Software and 380340 Datalogger. The kit includes the meter, mini pH electrode (60120B) with 39-inch (1m) cable, temperature probe (850188), protective holster with stand, and case.
