• Check that the device is switched OFF.
• Open the batteries compartment, insert three 1,5 V AAA LR03 batteries into the compartment, comply with + and – indications then to close the case.
• Do not mix used and good batteries. For an optimal use of your device, it is advised to use good quality alkaline batteries.
• Do not use rechargeable batteries.
  

Important informations about batteries

x3 AAA LR03 (1,5 V)

Always use high quality batteries
The use of bad quality batteries can cause this unit to malfunction. Please verify the quality of the batterie before contacting the SPORT-ELEC Customer Service Hotline.