• Extech BT100: Battery Capacity Tester


Identify wire pairs, check continuity & test telephone line polarity.

The EN100 is a Compact Hygro-Thermo-Anemometer with Light Sensor. 11-in-1 Environmental Meter for indoor and outdoor conditions. Built in light sensor measures light level. Auto-rotating display depending on selected function. Also measures Air Velocity, Air Flow, Temperature, Humidity, Wet Bulb, Dew Point, Heat Index, Wind Chill, Barometric Pressure and Altitude. Complete with built-in multiparameter sensors, wrist strap, and CR2032 battery.


  • On-line testing without shutting down battery.
  • Built-in datalogger stores up to 999 tests.
  • Simultaneously measures battery resistance and voltage.
  • PC software for downloading readings to a PC.

For complete specs please download the product datasheet (not available for some accessories)

Thumb File Name File Size Action
BT100data.pdf 129.99KB
BT100_UM.pdf 429.48KB

Extech BT100: Battery Capacity Tester