Reverse input protection and indoor safe operation The monitor includes input reverse connection protection. It is intended for indoor use and CE certified. It remains safe and does not overheat even with long term use. Poweroff memory for uninterrupted settings The battery tester features a poweroff memory function, retaining its settings when power is removed so you do not need to reconfigure after outages or reconnections. Wide voltage and battery type compatibility Suitable for 7 to 100 V systems. It supports common configurations including 12 V, 24 V, 36 V, 48 V, 60 V, 72 V, and 84 V. Compatible with leadacid, AGM, and LiFePO4 battery types. Default configuration is for a 12 V leadacid battery. Easy monitoring with adjustable alarms The monitor allows you to set a low voltage alarm and a buzzer alert for timely notifications. Short press M to switch the display between voltage and temperature, enabling quick checks at a glance. 23 practical use scenarios Home solar storage or backup power: monitor a 12 V to 84 V battery bank in an indoor utility area, ensuring safe operation and timely alerts without overheating. Indoor workshop or garage battery management: keep track of voltage and temperature for leadacid, AGM, or LiFePO4 packs used for tools, lights, or small equipment, with memory protection and audible alarms. RV, boat, or offgrid living indoors: manage battery health in a dedicated indoor compartment, using the wide voltage range and multiple battery chemistries supported by the device. Key attributes at a glance Function: reverse input protection, longterm safe operation, poweroff memory, voltage and temperature display Compatibility: 7100 V systems; supports 12/24/36/48/60/72/84 V configurations Battery chemistries: leadacid, AGM, LiFePO*4* Default setup: 12 V leadacid Alarm and display: low voltage alarm with buzzer; M button toggles voltage and temperature display