Stop Guessing Your Battery’s State of Charge
The KM-F WiFi Battery Monitor delivers live voltage, current and coulomb data for packs up to 100 V / 600 A. Check your LiFePO, AGM or lead-acid bank from anywhere—perfect for RVs, off-grid solar cabins, boats and forklifts.
Key Features
- WiFi + Bluetooth Dual Mode — view real-time data locally or over the cloud via free iOS/Android app.
- Coulomb Counting & SOC% — accurate amp-hour tracking eliminates range anxiety.
- Selectable Shunts 50 A · 100 A · 400 A · 600 A — one meter fits multiple systems.
- Smart Alarms & Relay Output — protect against over/under-voltage, over-current and low capacity.
- Data Logging — on-board memory stores settings & history even after power loss.
- Low Stand-by (0.9 W) — won’t drain your battery bank.
Typical Use Cases
- RV & camper solar battery monitoring
- Marine house banks—prevent deep discharge on long passages
- Golf-cart / forklift lithium upgrades
- Telecom UPS & backup systems (24 V / 48 V)
- DIY powerwalls & battery labs
Technical Specifications
| Model | KM105F | KM110F | KM140F | KM160F |
|---|---|---|---|---|
| Voltage Range | 10 – 100 V DC | |||
| Current Range | 0 – 50 A | 0 – 100 A | 0 – 400 A | 0 – 600 A |
| Resolution | 0.001 A | 0.01 A | 0.1 A | 0.1 A |
| Voltage Accuracy | ±0.5 % + 0.02 V | |||
| Current Accuracy | ±1 % + 0.1 A | |||
| Sampling Rate | 5 Hz | |||
| Bluetooth Range | ≈ 10 m (open field) | |||
| WiFi Range | ≈ 10 m (router required) | |||
| Stand-by Power | 0.9 W | |||
Package Contents
- KM-F Display Unit
- Matching Shunt (50 A / 100 A / 400 A / 600 A)
- 5 m Communication Cable
- Temperature Sensor Probe
- Ring Terminals & Screws
- User Manual (EN)
Why Buy from MCOOH?
- 🚚 Free worldwide shipping & 30-day returns
- 🛠️ 1-year warranty • lifetime tech support
- 📦 Ships within 3 business days