BattMan Pro Battery Monitor - 12/24VBattery monitor, 12/24 V DC with large, splash-proof display (IP65) and power bar. Displays remaining time and stores special battery status events.An affordable battery monitor that does exactly that: providing critical information about the status of your battery bank under all circumstances. Moreover, it will warn you when your battery bank is empty. Also displays the remaining time until your battery needs to be charged and stores special battery status events.General Specifications: Number of battery outlets: 2; service (fully), starter (voltage) Display/read-out: Voltage, current, amp-hours, battery capacity in % Languages on display: Universal Built-in depth: 72.5 mm/2.9 inch Dimensions: 64 mm, depth 79 mm Dimensions shunt, height x width x depth: 87 x 45 x 35 mm/3.4 x 1.8 x 1.4 inch Weight: 0.15 kg/0.3 lb Technical Specifications: Max. Ah capacity: 9999 Ah Supply voltage: 9-35 V Voltage range: 0-35 V Current consumption (backlight off): 8 mA/12 V, 6 mA/24 V Current consumption (backlight on): 30 mA/12 V, 18 mA/24 V Voltage resolution: 0.1 V Voltage accuracy: 0.3% Shunt specification: 500 A/50 mV (service set) Current measurement range: 0-500 A Current accuracy: 0,4 % Battery alarm contact: Yes, potential free Remaining time indication: Yes Historical data: Yes MasterBus compatible: No Connection cable (6-wire) necessary: Yes Modular cable necessary: No WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Owner&';s Manual (pdf)