The M2 DC State of Charge Monitor is a must - have for accurately measuring and monitoring your battery's charge. It supports programmable shunt ratios. Key features include an auto - dimming, bright OLED display that's super easy to read, and it's a breeze to adjust. All models come with a 92dB alarm and an isolated MOSFET relay. Specifications: It can measure current and voltage. The function range is from 8 to 70V up to 5000A (500A with the included shunt). Alarms cover high current, high/low voltage, and low battery situations. The display size is 55mm x 28mm, with an input voltage of 7 - 70V DC. Maximum power consumption is 1.00Watt, and minimum is 0.3 Watt. WARNING: This product may expose you to chemicals like di(2 - ethylhexyl)phthalate (dehp), known in California to cause cancer, birth defects, or other reproductive harm. Visit P65Warnings.ca.gov for more info. Owner's Manual (pdf).


Using this Blue Sea M2 DC State of Charge Monitor is straightforward. First, connect it to your battery according to the included instructions. Once connected, the auto - dimming OLED display will show you the battery's state of charge clearly. You can easily adjust the settings to suit your needs. When it comes to alarms, if there's a high current, high or low voltage, or low battery, the 92dB alarm will go off to alert you. As for maintenance, keep it clean and dry. Avoid exposing it to extreme temperatures. And always follow the safety warnings. If you have any questions about the chemicals it may contain, check the P65Warnings.ca.gov website for details.