1. Maximum detection depth: ferrous metal: 100mm, non-ferrous metal: 80mm, copper wire: 40mm, foreign matter: 20mm/38mm2. Measurement accuracy: about 5mm3. Unit selection: m/inch/ft4. Measuring range (without reflector): 0.05-40m5. Measuring time: 0.3-4 seconds6. Laser type: 620-670nm7. Self-closing laser: 20 seconds8. Storage data: 30 sets of data9. Automatic shutdown time: about 5 minutes10. Screen: 1.8 inch color screen11. Power supply: built-in 300mAh lithium battery12. Working temperature: 0-40 degrees13. Storage temperature range: -20 to 60 degrees14. With single-function buzzer alarm function without data15. Real voice, real-time broadcast for detecting metal (steel bars, copper pipes) and cables hidden in walls, ceilings and floors16. Large-capacity lithium battery, USB chargingPacking list: 1x multi-function instrument, 1x USB data cable, 1x user manual, 1x lanyardSpecification: Package Weight One Package Weight 0.28kgs / 0.63lb One Package Size 19cm * 11cm * 6cm / 7.48inch * 4.33inch * 2.36inch Qty per Carton 50 Carton Weight 15.00kgs / 33.07lb Carton Size 40cm * 57cm * 32cm / 15.75inch * 22.44inch * 12.6inch Loading Container 20GP: 365 cartons * 50 pcs = 18250 pcs40HQ: 848 cartons * 50 pcs = 42400 pcs