21. Important informationSafety◆ Before using this product, please read andunderstand all instructions. Damage caused byfailure to follow the instructions is not coveredby the warranty.◆ Use only the accessories/components specifiedby the manufacturer.◆ Please use alkaline batteries or lithium polymerbatteries that are specifically recommendedfor this product, or use batteries of the samespecifications and type.◆ Do not forcibly disassemble the product totrigger an alarm or damage the product.◆ Do not scrape the fingerprint sensor withsharp objects, as this may cause permanentdamage.◆ Do not expose products to places that havewater leakage or splashing.◆ Do not expose the product to corrosivesubstances to prevent damaging the protectivecover.◆ Do not hang objects on the handle in case itmight affect the use of the lock.◆ Please use a soft cloth soaked in water toremove fingerprints/dirt left on the surface ofthe assembly.◆ Do not remove the batteries during setting upand operating.◆ Please follow the assembly instructions toinstall the product and keep the relevant sealedstickers properly.◆ Please change the default master PIN codeimmediately after completing the installation andtroubleshooting, properly store the mechanicalkeys, and do not disclose the PIN codes to others.◆ Please replace all batteries immediately whena low battery alarm appears.Caution◆ Do not place the batteries near ignitionsource to avoid explosion.◆ Do not use any power supply that doesnot meet the safety requirements to powerup the product.◆ Do not connect the 2 poles of the batteriesto metals to avoid a short circuit that maycause an explosion.◆ Please make sure installation or anycomponent replacement is performed byPhilips, a Philips authorized service centeror professional technicians.◆ Do not use accessories or partsmanufactured by others or not expresslyrecommended by Philips. The use ofsuch accessories and parts may void thewarranty.Disposal of usedproducts and batteries◆ You can have your locks taken back atauthorized Philips service centers. You willreceive appropriate compensation if yourproducts meet our conditions.◆ Please familiarize yourself with the localcollection system for electronic products.◆ Please follow local regulations and do notdiscard used products and batteries intoordinary household waste.◆ Please familiarize yourself with the localregulations for recycling batteries. Properdisposal of batteries can help preventnegative effects on the environment andhuman health.