User manual and APP download 1 User manual PC software installation instruction and PC software and Android APP download link http en atorch cn upload 20240617105324 rar 2 IOSAPP search smart life or tuya APP on phone store to download 3 Android APP search smart life or tuya APP at Google play to down load4 More details Click here to openBuilt in WiFi module Remote Control Connect the DT20 meter Wi Fi to 2 4GHz Wi Fi then you can monitor or adjust on your phone through the app at any time anywhere Product parameters ① Voltage range DC 0 420V DC5V independent power supply Capacity range 0 99999AHCurrent range 0 30A 0 1 100A 0 2 200A 0 3 300A 0 4 400A 0 5 500A 0 6 600A optional ② Support the modification of circuits that require additional relays to be fully charged and fully discharged which can protect the battery ③ Support low voltage over voltage over Power prompt or power outage when adding 5V relay circuit Support bidirectional current testing access After the line there is no distinction between the direction of current ④ Support shunt selection 100A 200A 300A 400A 500A 600A optional Attention This product is a bidirectional current test When discharging the current displays a symbol When charging the current displays a symbol The capacity test is cumulative and you need to hold down the and keys to reset zero the capacity Enter charging or discharging to test the capacity and the test result is the discharge cap