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ECOWITT WS3900 - Care and Maintenance

ECOWITT WS3900
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Manufacture: Shenzhen Fine Offset Electronics Co., Ltd.
Address: 4/F, Block C, JiuJiu Industrial City, Shajing Town, Baoan Distri
ct, Shenzhen City, China
8. Care and Maintenance
When batteries of different brands or types are used together, or new and
old batteries are used together, some batteries may be over-discharged
due to a difference in voltage or capacity. This can result in venting,
leakage, and rupture and may cause personal injury.
Do not mix Alkaline, Lithium, standard, or rechargeable batteries.
Always purchase the correct size and grade of battery most suitable for
the intended use.
Always replace the whole set of batteries at one time, taking care not to
mix old and new ones, or batteries of different types.
Clean the battery contacts and also those of the device prior to battery
installation.
Ensure the batteries are installed correctly with regard to polarity (+ and
-).
Remove batteries from products during periods of non-use. Battery
leakage can cause corrosion and damage to this product.
Remove used batteries promptly.
For recycling and disposal of batteries, and to protect the environment,
please check the internet or your local phone directory for local recycling
centers and/or follow local government regulations

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