88598 4 channel K thermometer SD card data logger

*Super big LCD portable/wallmount SD card logger
*4 channel k type thermocouple to use at once
*Unlimited manual memories and Unlimited autologging memories in SD card
*Hold function,Max/Min,offset,Low battery indicator
*Beeper and LED alarm are both available
*One button press to display T1-T2
*Programmable temperature High/Low alarm limit
*Over-range indication with error messages
*Blue backlight function works in dark area
*20 mins auto power off to save power