Stay safe and measure twice.
Humidity 40%–70% and Temperature +20°C to +25°C. WET: Humidity above 70%. DRY: Humidity below 40%.
Regular maintenance is essential to ensure the KT 908 operates accurately and reliably. kt 908 instruction manual
If you have lost your physical copy, the is often available from:
Most versions feature a with backlight, a rotary dial for function selection, and two input jacks for test leads (plus a third 20A jack for high current measurements). The device is typically powered by a 9V battery (e.g., 6F22). Stay safe and measure twice
Press in Alarm mode to toggle the alarm icon ( \bell ) or the hourly chime icon.
If you are uncertain about any measurement, consult a qualified electrician or refer to foundational electrical safety courses. DRY: Humidity below 40%
Use to set the correct minute, then press [MODE] to advance to hours, 12/24h format, year, month, and day. Setting the Alarm: Press [MODE] once to enter Alarm mode (indicated by "AL").
again to cycle through hours, 12/24-hour format, month, and day.