Frequently Asked Questions about the Tachometer

Please perform a reset operation to completely discharge the capacitor in the HT series digital hand tachometer, and then insert a new battery.

<Operation Procedure>

• Remove the battery.
• Press the measurement switch (button) for a few seconds.
• Insert a new battery
  Please replace all batteries with new ones. Mixing used batteries with new ones can shorten battery life due to the potential difference between the batteries.