User manual IROX TIME-ON 81

[. . . ] When handled properly, this unit is engineered to give you years of satisfactory service. [. . . ] Do not clean the unit with alcohol containing detergent, abrasive or corrosive materials. Abrasive cleaning agents may scratch the plastic parts and corrode the electronic circuit. Do not subject the unit to excessive: force, shock, dust, temperature, or humidity. Such treatment may result in malfunction, a shorter electronic life span, damaged batteries, or distorted parts. Timer buzzer alarm can be stopped by either pressing MIN, SEC or START/STOP buttons. After timer buzzer alarm stops, press START/STOP button once to recall pre-set timer and timer will count down for another lap. Press START/STOP button second time can start timer and timer will count down for another lap. Follow the arrow direction to open the battery cover at back side of timer. [. . . ] The timer can clip onto a thin board or shirt pocket, using the plastic clip at rear of timer. [. . . ]