Input: Mirco USB DC 5V/0.5A
There is one CR2032 button battery inside the Speed/Cadence Sensor which
can last for 6-9months or so. When the bike computer or App can't detect the
sensor and the data displayed is not complete; the battery will be probably
without capacity; you should consider to replace the battery. Please check How
to Install for battery replacement.
Parameter
1. Battery type: rechargeable lithium battery
2. Working hours: 100hours
3. Wireless transmission protocols: Bluetooth BLE4.0 / ANT +;
Speed/Cadence Sensor: BLE 4.0
4. Operation frequency: 2.4G HZ
5. Ambient temperature: -10 — + 40
6. Waterproof grade: IPX5
Safety Claim and Warranty
1. Do not put the wasted battery into the water or uncontrolled natural environment;
do not place the product on fire or in an ultra-high temperature environment.
2. If the product is not used continuously for six months, please charge it at least once,
otherwise it may affect your use.
3. This product is suitable for use in small to medium rain. Do not use the product in
heavy rain or soak in water.
4. Riders too much glance at the screen during the high speed riding or improper
training method will increase the chance of injury. The data generated by M4 is for
reference only.
5. This product was developed in accordance with the EN300328V1.9.1 standard.
Please follow the local laws and regulaons when using it in different regions.
6. The product is guaranteed for one year from the date of sale for non-human damage,
and the accessories are not covered by the warranty. You can contact the after-sales
service center through Meilan global distributors or by writing to Meilan. When
sending for repairs, you need to effectively keep the internal storage information.
Data may be lost during the repair process.
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