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 LiFePO4, 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
Free Shipping
Under normal circumstances we offer free shipping on all orders, you will see the free shipping option in your cart at checkout. There is no choice of carrier for free shipping, but typically we will ship your order will likely ship using either USPS or FedEx. Full Shipping Policy
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.). Full Returns Policy
When Will My Order Ship?
For Standard Shipping, we aim to pack and ship out your order within 3 business days. During special periods, such as heavy order processing or local inventory shortages that require deployment, please expect it to take an additional day or two for processing.
We ship five days a week, Monday through Friday. Sometimes our mail pickup comes in early afternoon, so tracking for orders shipped later that day may not update until the following business day.
You will receive a shipment confirmation with tracking information via email when your order has shipped. Once you receive this email, we cannot change or cancel your order.
Can I Change The Shipping Address On My Order?
Please contact us immediately via email if you realize that you gave us the wrong shipping address — if it hasn't shipped yet, we might be able to correct it before it goes out the door.If your order ships to the address provided and is returned to us as undeliverable, then you are responsible for paying the cost of shipping again to resend it to you. If you decide you do not want your order reshipped, we'll refund you for the products less the original shipping charges, once your order returns to our warehouse. We'll reach out to you to coordinate your options before re-shipping.
If your order ships to an incorrect address provided at the time the order is placed and is not retrievable, we are not responsible and cannot offer reimbursement.
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