Specification Brand : LYWS BulletPoint1 : Working power supply: DC8-24V, 40mA BulletPoint2 : Display mode: 0.56"LED,4 Digital. BulletPoint3 : measurement range: 10-9999RPM BulletPoint4 : Measuring Accuracy: ±0.1, reading ±1 word. BulletPoint5 : Measuring Accuracy: ±0.1, reading ±1 word. Display refresh rate: >3 times/sec Color : Red ExternallyAssignedProductIdentifier : 7436829254035 ExternallyAssignedProductIdentifier1 : 0788601200226 ExternallyAssignedProductIdentifier2 : 788601200226 Hazmat : 9 ItemName : LYWS 4 Digital LED Display Tachometer RPM Gauge Speed Meter Tester 10-9999 RPM with Hall Proximity Sensor Switch & Bracket (Red) ItemPackageDimensions_Height : 13.3096 centimeters ItemPackageDimensions_Length : 3.302 centimeters ItemPackageDimensions_Width : 7.2898 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : industrial-tachometers Manufacturer : LYWS Material : Stainless Steel ModelNumber : XJ-087 NumberOfItems : 1 PartNumber : LYWS-A1973 ProductDescription : Specifications: Working power supply: DC8-24V, 40mA Display mode: 0.56"LED,4 Digital. measurement range: 10-9999RPM Measuring Accuracy: ±0.1, reading ±1 word. Display refresh rate: >3 times/sec Overrange display: the first one shows "1" or "-1", and the latter three do not show Physical dimension: 79x43x26mm Precautions: 1.Connect the plug correctly according to the wiring diagram 2.Should avoid strong electromagnetic interference and it is better to use shielded wire or double stranded wire for measuring conductors 3.The counting signal of the counter and the switch of the zero clearing signal input or the circuit shall be as close as possible to the terminal of the counter to make the signal line as short as possible 4.Avoid with other such as: high voltage wires or power wires and so on with same tube or twisted trace line, in order to avoid unnecessary interference.If necessary, please use the shielded wire, shielding layer connect the"+" of the count terminals 5.It is not recommended to use a mechanical switch or micro switch because they have a relatively short life span and can be counted by mistake after long time. If you have to, please try better quality ones, strongly suggest a magnetic control switch Package Included: 1 x Tachometer 1 x Hall NPN proximity sensor 1 x Bracket 1 x Magnet 1 x Cable ProductSiteLaunchDate : 2019-06-04T07:00:00.000Z Size : -30inHG-0Psi Style : Lower Mount SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 41112802