Specification BatteriesIncluded : 1 BatteriesRequired : 1 Brand : Synergy Digital BulletPoint1 : ACCURATE MEASUREMENT SOUND: Sound level meter tester is an instrument used to measure environmental noise. With digital technology, it can accurately measure the strength and frequency of sound. BulletPoint2 : WORKING PRINCIPLE: The Decibel meter's microphone will collect sound from the environment and convert them into electrical signals.The AD converter will convert the electrical into digital signals, which will then be transmitted to a digital processor for processing and analysis. BulletPoint3 : WALL MOUNTED: Wall mounted decibel meter is wall mounted with mounting holes, can be mounted on the wall, convenient and does not take up space. BulletPoint4 : HIGH ACCURACY: Wall hanging type decibel noise measuring has high accuracy, wide measuring range, easy to use and portable. The processor calculates the strength and frequency of the noise and displays the results on the screen. BulletPoint5 : WIDELY USED: Sound level meter tester can be widely used in industrial noise monitoring, environmental noise assessment, building construction noise monitoring and other fields. Color : Black CompatibleDevices : Remotes ExternallyAssignedProductIdentifier : 6259850455001 IncludedComponents : No ItemName : Synergy Digital Trotec BL30 Data Logger Battery Combo-Pack Includes: 2 x COMP-4-SAFT Batteries ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 1 ItemTypeKeyword : industrial-data-loggers Manufacturer : Synergy Digital Material : PP MeasurementAccuracy : 0.1mm ModelName : Diydeg7b2a9zixou ModelNumber : AK117662 NumberOfItems : 1 NumberOfLithiumIonCells : 1 PartNumber : AK117662 ProductDescription : Synergy Digital Data Logger Batteries, Compatible with Trotec BL30 Data Logger, (Lithium, 3.6V, 1200 mAh), Replacement for Eternacell B9696T Battery, combo-pack includes: 2 x COMP-4-SAFT Batteries ProductSiteLaunchDate : 2017-03-17T16:57:08.452Z RecommendedUsesForProduct : Radio Reusability : Single Use Size : 24cm SupplierDeclaredDgHzRegulation : waste UnitCount : 1 UnspscCode : 26111702 Voltage : 3.6 volts