Specification Brand : Irfora BulletPoint : 10KG Calibration Weight with 500g Test Weight This calibration weight set includes one 10KG (~22 lbs) cast iron weight and one 500g chrome weight. The 10KG weight is finished with black paint. On its side there is a removable brass plug for weight adjustment. This weight set may be used for calibrating scales with 10kg, 20kg, or 25kg capacity. Check your scale's manual before ordering. Use the 500g weight to test your scale after calibration. Calibration only guarantees correct reading at the calibration point. Testing your scale with a different weight after calibration is important. These weights have tolerance equivalent to OIML M1. Items Included One 10 kg cast iron calibration weight One 500g standard weight BulletPoint1 : Professional Manometer: it can test the differential pressure of areas and s, wind velocity of line. It has wide pressure and +/-0.1% accuracy. BulletPoint2 : Clear Display: 2.7-inch LCD screen with backlight display for easy reading. BulletPoint3 : 12 Selections of Measuring Unit: hpa, kpa, mmHg, psi, mbar, bar, ozin2, inHg, Kgcm2, inH2O, ftH2o, cmH2O. BulletPoint4 : Other Features: Max./Min. value measurement function, data record, data hold and function. BulletPoint5 : User-friendly Prompt: low battery indication, Hi and Lo over indicator. Color : Red ExternallyAssignedProductIdentifier : 9438847132829 ExternallyAssignedProductIdentifier1 : 0787388429691 ExternallyAssignedProductIdentifier2 : 787388429691 IncludedComponents : inc ItemName : Irfora AS511 Digital Differential Pressure Gauge -39.98~39.98KPA Manometer Dual Port Air Gas Pressure Tester with LCD Backlight Display Supports Temperature & Humidity Measurement 12 Units Data ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : manometers Manufacturer : Irfora Material : Material ModelName : LINKANRUO ModelNumber : LINKANRUO NumberOfItems : 1 PartNumber : LAKUSE22913-1 ProductDescription : Specifications: Model: AS511 / AS511B (Optional) AS511: Differential Pressure Measuring : -39.98~39.98KPa Maximum Permanent Load Pressure : -79.96~79.96KPa Pressure Resolution: 0.01KPa Accuracy: ±1%FS, maximum error: ±400Pa AS511B: Differential Pressure Measuring : -206.8~206.8KPa Maximum Permanent Load Pressure : -413.6~413.6KPa Pressure Resolution: 0.1KPa Accuracy: ±1%FS, maximum error: ±2.08KPa Measurement Selection Rate: 0.5 seconds Unit: hpa, kpa, mmHg, psi, mbar, bar, ozin2, inHg, Kgcm2, inH2O, ftH2o, cmH2O Temperature Measurement : -10~60℃ Humidity Measuring : 5~99%RH Temperature Accuracy: ±2℃ Humidity Accuracy: ±5%RH Storage Environment: -10~70℃ / -4~140℉ Power Supply: 3 * 1.5V AAA battery (NOT included) Material: ABS Item Size: 167 * 65 * 30mm / 6.57 * 2.56 * 1.18in Item Weight: 141g / 4.99oz Package Weight: 305g / 10.77oz Package Size: 24.8 * 9.3 * 5.3cm / 9.76 * 3.66 * 2.09in