1. 2.49KPa digital pressure manometer, with USB port2. Large LCD, data hold3. With differential mode and record mode4. Reset and data adjustment5. Low battery indication and automatic power off6. 4 x AAA battery(Not Included)Specification: Package Weight One Package Weight 2.00kgs / 4.42lb One Package Size 30cm * 20cm * 10cm / 11.81inch * 7.87inch * 3.94inch Qty per Carton 10 Carton Weight 21.00kgs / 46.30lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 10 pcs = 3810 pcs 40HQ: 885 cartons * 10 pcs = 8850 pcs