"Wireless waterproof design: SLB bicycle computer has high wireless anti-interference performance, and you should use it even on rainy days
Backlight: When any button is pressed from 6 pm to 8 am, the backlight will turn on. Evening makes your bike more convenient
Automatic wake-up: when receiving a signal, the built-in steel ball switch will shake. When any signal is input or any button is pressed, this cycle computer will automatically wake up
Multifunctional: It can measure speed, distance and riding time, and can also serve as a bicycle speedometer and odometer.
Suitable for all types of bicycles: please note that the distance between the sensor and the receiver should not exceed 60cm, and the distance between the transmitter and the magnet should not exceed 3mm, otherwise the signal may not be obtained

SD-548C: wireless, no backlight, automatic wake-up
SD-546C: wireless, with Green backlight, automatic wake-up

Material :Engineering plastics, electronic components

Display:LCD display

Size:46mm*45mm*19mm

Weight:about 100G

List:
meter head,
watch base,
wireless transmitter,
magnet,
cable tie,
manual