Waterproof Interval Timer A&D (A&D Company, Limited) A&D AD-5709TL

Setting range: Maximum 99 minutes 50 seconds, minimum 10 seconds Number of timers: Up to 8 timers can operate sequentially. Timer function: Countdown (until the set alarm time), count-up (when started from 00 minutes 00 seconds) Alarm duration: Buzzer sounds for 5 seconds/30 seconds, red LED light flashes for approximately 30 seconds. Buzzer volume: Approximately 65dB / distance 15cm Number of repetitions: Can be set from 1 to 999 times. Permanent repetition can also be set. Waterproof performance: IPX7 equivalent Power source: 1 x CR2032 lithium battery Accessories: Instruction manual, battery (for monitoring)