Test & measurement instruments

KH Series 120 V Bluetooth Battery Coulomb & Capacity Monitor | 100 A-600 A

Mcooh  |  SKU: INS10-BM7024
$101.56 USD
Free standard shipping to supported destinations. Taxes calculated at checkout.
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Description

See Your Battery’s True State-of-Charge—Anywhere

The KH Series Bluetooth Battery Coulomb Meter delivers laboratory-grade Amp-hour (Ah) & Watt-hour (Wh) tracking for any 0-120 V battery bank. View data on the 2.4″ HD color screen or in the free mobile app—complete with real-time curves and exportable history.

Key Advantages

  • 📊 Comprehensive Metrics — Voltage, current, power, capacity %, elapsed time & temperature updated every 1 s.
  • 📱 Bluetooth App Control (10 m) — Rename devices, set alarms & download logs to CSV for analysis.
  • ⚡ High-Current Options — Choose 100 A, 400 A or 600 A pure-copper shunt versions.
  • 🔒 Multi-level Protection — Over-/under-voltage, over-current, over-temperature with user-defined recovery delays.
  • 🔌 Wide Chemistry Support — Lead-acid, LiFePO4, NCM, LTO & custom packs.
  • 🛠️ Open RS-485 Protocol — Integrate up to 99 meters into PLC, BMS or Home-Assistant projects.
  • 🌙 Ultra-Low Standby 0.4 W — Won’t drain seasonal batteries.

Where It Excels

  • RV & camper van solar systems
  • Off-grid cabin / boat house energy storage
  • Golf carts, e-bikes & small EV conversions
  • Forklifts & warehouse AGVs
  • Marine house battery banks & trolling motors
  • DIY powerwalls / server-rack LiFePO4 projects

Technical Specifications

Model KH110F KH140F KH160F
Current Range 0-100 A 0-400 A 0-600 A
Voltage Range (ext. supply) 0-120 V
Voltage Range (self-powered) 10-120 V
Accuracy ±1 % FS
Sampling Rate 1 Hz
Comms Bluetooth 4.2 + RS-485 (open protocol)
Standby Draw < 0.4 W
Operating Temp -20 – 50 ℃

What’s In the Box?

  • Display module ×1
  • Shunt & measuring module ×1
  • Sampler & cables (5 m) ×1 set
  • External temperature probe ×1
  • User manual & open-source protocol sheet ×1

FAQs

Does it work with 48 V LiFePO4 packs?

Yes—any battery between 10-120 V is supported. Simply enter the rated capacity in the app.

How do I reset Amp-hour counting?

Hold the OK button for 3 s or tap “Clear Data” in the app dashboard.

Can I view data in Home-Assistant?

Absolutely. Use the open RS-485 protocol or a Bluetooth BLE MQTT bridge to stream live values.