24/48V Model 803RB2448BCJ301O Mounting Hardware and Instructions included The Model 803 Installation Kit includes a pre-assembled mating connector with 5" terminated wires The Model 803 fits into a dash-panel cutout measuring 21/16" (52 mm) Overall Dimensions: diameter 51.46 mm; thickness 68 mm maximum ' Gauge Features Multicolor 10-bar LED displays state of charge (5 green, 3 yellow, 2 red LEDs). Flashing red LED signals "energy reserve" alarm at 70% discharged. Double flashing red LEDs signal "empty" alarm at 80% discharged. Normally closed relay opens at 80% discharge for lift lockout. This holding relay only lock out at of a lift cycle. Recognizes improperly battery. Keyswitch activated LED display ( gage electronics are energized as long as they remain connected to the battery). Wide range adjustable discharge profile. Dual reset methods in each gage: Open Circuit Reset for vehicles that exchange batteries and Charge Tracking Reset for vehicles whose batteries remain connected to the gage during recharge. Hour Meter Features Monitors use-time throughout the equipment's lifespan. Records and displays up to 99,999.9 hours on its LCD, rolls over and continues to count and display. Hour meter LCD remains on as long as battery is connected. Stores latest total in EEPROM nonvolatile memory, without need of power. Operates and displays in temperatures from -40˚C to +65˚C under harsh conditions of vibration, shock, moisture and dust. Fitment For: For 803 Color: Black Material: Metal+ABS Package Contents: 1x Battery Meter & Hour Meter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.