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300A Battery Monitor with Shunt 2.4" TFT LCD Coulomb Meter

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±1% HIGH-PRECISION COULOMB COUNTING Built on the 2nd-gen CZSOC system with a 16-bit ADC, CZ212 measures real remaining capacity (SOC) by counting charge in/out, not by guessing from unstable voltage. Enjoy stable, linear, jump-free percentage readings trust what you see, whether on a golf cart or in an RV.
REAL-TIME SOC, VOLTAGE, CURRENT, POWER & TEMPERATURE One glance shows remaining capacity (Ah + %), voltage, current (discharge shown as -), power (W/kW auto-switch), temperature (°C/°F), and auto-calculated remaining time in hours & minutes. Know exactly when to charge no more sudden power loss mid-trip.
PROGRAMMABLE HIGH/LOW VOLTAGE & 20% LOW-CAPACITY ALARMS Set custom voltage thresholds (0.1-500V); when exceeded, the buzzer sounds and the reading flashes red. The low-capacity alarm triggers at 20% SOC. Together they help prevent over-charging and deep-discharging, protecting your battery investment.

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300A SHUNT, WIDE SYSTEM COMPATIBILITY Includes a 300A/75mV external shunt with acrylic base. Works with 12V-100V systems and Lithium, LiFePO4, Lead-Acid, Gel and AGM batteries ideal for RVs, boats, golf carts, solar setups and forklifts.
1-TIME SETUP & LOW-POWER CONSUMPTION Set your battery capacity once (long-press UP to sync 100% SOC on a full battery); no repeated calibration needed. 10-level brightness, auto screen-off (<100mA current), standby 1mA, and settings/data memory survive power-off.