Large Digit Countdown Timer control Good for hearing impaired

Good for hearing impaired

and develop healthy ways to recognize

The optical smoke alarm is based on the EI smoke alarm system

1 x User Manual

Large Digit Countdown Timer control Good for hearing impairedMain Features: Electronic timing part avoids repeated mechanical presses, with a stop every 5 seconds for quick adjustment Easy to stick to metal surfaces such as blackboard and refrigerator Electronic timing design, silent running Three position volume with large flashing digits 00: 00~99: 55 adjustable range, support counting up and down, simpler timing Specifications: Brand: BaseusColor: BlackMaterial: ABSWorking Temperature: 0C~50Voltage: 4. 5V(