The BTM-4208SD is a 12-channel temperature logger that can monitor multiple temperature points simultaneously and directly store measured data and time information to an SD card. Data can be imported into Excel for analysis without dedicated software, greatly improving data management efficiency. It supports multiple thermocouple types including K, J, T, E, R, and S, making it suitable for laboratories, process monitoring, and equipment testing. Built-in large backlit display, maximum/minimum value recording, data hold, and auto logging functions, combined with long-term data storage capability, make temperature monitoring easier and more reliable.
 
Product Introduction
* 12 channels Temperature recorder, use SD card to save the data along with time information, paperless. * Realtime data logger, save the 12 channels Temp. Measuring data along the time information ( year, month, date, minute, second ) into the SD memory card can be downloaded to Excel; extra software is unnecessary. Users can make further data or graphical analyses by themselves. * Channels no. : 12 channels ( CH1 to CH12 ) temperature measurement. * Sensor type : Type J/K/T/E/R/S thermocouple. * Auto datalogger or manual datalogger. Data logger sampling time range: 1 to 3600 seconds. * Type K thermometer: -100 to 1300 ℃. * Type J thermometer: -100 to 1200 ℃. * Page select, show CH1 to CH8 or CH9 to CH12 in the same LCD. * Display resolution: 1 degree/0.1 degree. * Offset adjustment. * SD card capacity: 1 GB to 16 GB. * RS232/USB computer interface. * Microcomputer circuit provides intelligent function and high accuracy. * Jumbo LCD with green light backlight, easy reading. * Can default auto power off or manual power off. * Data hold to freeze the measurement value. * Record function to present the max. And min. reading. * Power by UM3/AA ( 1.5 V ) x 8 batteries or DC 9V adapter. * RS232/USB PC COMPUTER interface.
Measurement Specification
Measuring Range : -200 to 1,800°C
Accuracy : ±(2% + 0.8 °C)
Resolution : 0.1)
Type of Thermocouple : K、J、E、T、R、S ype
Sampling rate : 2 Sec.
Product Features
Logs : 86,000 set
Sampling Time of Display : Approx. 1 second.
Data logger sampling time range : 1 to 3600 seconds.
Offset : -100 to 100
UNITs : °C／°F
MEASURING DISPLAY : 8 Channel Display
MAX, MIN and HOLD mode for all channels. :
POWER INDICATOR :
Backlight :
Product Information
Operating Environment : 0 to 50°C / lower than 80 %RH without dew.
Storage Environment : -10 to 40°C / lower than 70 %RH without dew.
Elevation Limitation : Lower than 1,000 meters
Power Supply : 8pcs AA battery
Battery work : 3 months
Dimension : 225×125×64 mm
Weight : 944 g
Accessory : Battery, Manual,K-type Thermocouple x 12pcs
Software : Windows 10 support 32/64 system，capable fit with Windows 7 and Windows XP 32 bit