Note that the latter two test modes require an app. Item model number ‏ : ‎ TOPDON BT20 Car Battery Tester. The BT20 is TOPDON's entry-level wireless 12V battery tester. Manufacturer ‏ : ‎ TT TOPDON.

Type: AUTO DIAGNOSTIC SCANNER, Battery System Tester
Brand: TOPDON
Manufacturer Part Number: Topdon AB101 BT100
Volt: 12 Volt
Warranty: 1 Year
Set or Single Item: Single Item
Voltage: 8V~16V
Features: LCD Display, Multi-Language Interface, Battery Test, composed of battery analyzer and test cable, Battery Test Result
Accessories: Clamps, User Manual
Display: 1.2” Backit
SOH: State of Health
SOC: State of Charge
Voltage test range: 12V
Battery Test Type: AGM, Flooded, Lead-Acid, Gel, VRLA
Testing range（CCA）: 100-2000CCA
Testing voltage: 12V
Battery Standard: CCA/CA/BCI/MCA/DIN/IEC/EN/SAE/JIS/GB
Ripple test: YES
12V Battery Test: YES
12V Cranking Test: YES
12V Charging test: YES
Data retrieve: No limit in APP
LCD display: 1.2'' Backlit
Notice for BT20: it needs an APP on a phone or tablet to do charging&cranking test
APP Name: BatteryLab
UPC: 850028162750