Test & measurement instruments

Bluetooth Battery Monitor 0-120 V 100-600 A | KL-F Coulomb Counter

Mcooh  |  SKU: INS10-BM7030
$59.24 USD
Free standard shipping to supported destinations. Taxes calculated at checkout.
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Description

Know Your Battery—Anywhere, Anytime

Stop guessing State of Charge. The KL-F Bluetooth Battery Monitor measures voltage, current and coulomb count up to 120 V / 600 A, pushing live data to your phone so you can protect expensive LiFePO4, AGM or lead-acid banks in RVs, solar cabins, boats and forklifts.

Key Features

  • 0–120 V, 100 A · 400 A · 600 A Options—choose the shunt that fits your system.
  • Coulomb Counting & SOC %—accurate amp-hour tracking for true capacity insight.
  • Bluetooth + Free App—configure alarms, view historical curves, push OTA firmware.
  • Smart Protections—relay-driven cut-off for over-voltage, under-voltage, over-current, over-temp.
  • Color-Code Current Flow—green = charging, blue = discharging at a glance.
  • Self-Calibration & 0.4 W Stand-By—long-term accuracy without draining the pack.

Typical Use Cases

  • Off-grid & RV solar systems—balance charge/discharge cycles on LiFePO4.
  • Marine & yacht house banks—avoid deep-discharge damage while cruising.
  • Golf-cart / forklift conversions—monitor high-amp lithium upgrades.
  • Telecom backup & UPS cabinets—24 V / 48 V SLA or LFP strings.
  • DIY powerwalls & battery labs—log AH / WH for cell testing.

Technical Specifications

Model KL110F KL140F KL160F
Voltage Range 0–120 V (self-power 10–80 V)
Current Range 0–100 A 0–400 A 0–600 A
Resolution 0.01 A 0.1 A 0.1 A
Accuracy Voltage ±2 % + 3d; Current ±5 % + 10d
Bluetooth Range ≈ 10 m / 33 ft
Sampling Rate 1 Hz
Protections OVP, UVP, ±OCP, OPP, TEMP
Power Draw ≈ 0.4 W

Package Contents

  • KL-F Battery Monitor Display
  • Matching Shunt (100 A / 400 A / 600 A)
  • 4-pin & 3-pin Cables
  • Temperature Sensor Probe
  • Ring Terminals & Mounting Screws
  • User Manual (EN)