7 8 hours working time pqwt water detector

{"cid":"91206881","title":"PQWT S150 Water Detector with 7-8 Hours Working Time 2 Years Warranty and OEM Support Portable Groundwater Finder","imgUrl":"https:\/\/img.chinax.com\/nimg\/9f\/19\/94c90d7f1f9a37324bb5bfd18254-200x200-1.jpg","attrs":{"Price":"$986","Brand Name":"PQWT","Model Number":"PQWT-S150","Minimum Order Quantity":"1","Place of Origin":"Hunan, China","Frequency Range":"Single, Triple, 36 frequency","Power Supply":"3.7v 4000mAh 2*Recharge Lithium Battery","Channel":"8","Measurement Depth":"100\/150m","Accuracy":"more than 92%","Display":"Touch Screen","Working hours":"7-8 Hours","Battery Type":"Rechargeable Lithium","Battery Capacity":"4000mAh","Voltage":"3.7v","Detection Method":"Electrical Resistivity","Portability":"Portable","Operation Ease":"Easy Operation","Mapping Capability":"Automatic mapping","Remote Assistance":"Expert remote assistance"}}