• Triple LCD displays three DC voltage (mV) channels
  • DC voltage range:
    • 300mV: ±(0.5% + 0.2mV accuracy)
    • 3000mV: ±(0.5% + 2mV)
  • date/time stamps
  • Data sampling rates: 2, 5, 10, 30, 60, 120, 300, 600 seconds or Auto
  • Approx. 2.7M readings using 4GB SD memory card

What's in the Box

  • Six AAA batteries
  • SD memory card,
  • Univeral AC Adaptor with multi-plugs
  • 3 input connect sockets
  • Mounting bracket


Extech SD910 DC Voltage Data Logger allows technicians to easily monitor and record DC mV values from 3 external sensors, transducers, and other sources using one meter. It also stores the time and date of when readings are taken. The logger features a large triple LCD display and records data on an SD card in an Excel®-ready format for easy transfer to a PC for analysis, trending, and archiving.