JUNCTEK KG-F Series Bluetooth Battery Monitor Tester: Wireless Bluetooth connectivity
For the DIY enthusiast or solar power user who needs to track battery health precisely, this coulomb counter goes beyond basic voltage checks. It offers peace of mind for off-grid setups by letting you monitor energy flow in real time, so you never worry about unexpected power loss.
The 2.4-inch color screen displays voltage and current clearly, even in dim light. Connect via Bluetooth to the mobile app to view real-time curves and export historical data, helping you spot trends like gradual capacity drops. With support for up to 120V and 600A, it handles high-power systems reliably. The 3-meter cable between display and module allows flexible installation, extending to 30 meters if needed.
Use it to optimize charging cycles or set up protection features like over-voltage alerts. This tool turns complex battery management into a straightforward task for your home or project.
Features
- 2.4 inch high definition color screen
- Mobile phone APP for data viewing and parameter setting
- Real-time and historical voltage/current curves
- Historical data export capability
- Supports 0-100A, 0-400A, 0-600A current ranges
- Supports batteries with voltage up to 120V
- Monitors battery voltage, current, power, ambient temperature, electrical energy
- Tracks time required for full charge
- Measures energy during charging and discharging
- Supports over voltage protection
- Supports under voltage protection
- Supports over current protection
- Supports over temperature protection
- Supports over power protection
- Wireless firmware upgrade capability via mobile APP
- 3m 4P co-directional telephone line connection between display and measurement module
- Extendable up to 98.4 feet
- Pure copper shunts and screws
- Wireless Bluetooth connectivity
General specs
- Brand: JUNCTEK
- Model: KG-F Series
- Seller: Banggood
- ID: 2002208
- Cable Type: 4P co-directional telephone line
- Data Logging: Yes
- Display Type: 2.4 inch high definition color LCD
- Model Series: KG-F Series
- Relay Support: Yes
- Voltage Range: 0-120V
- Screw Material: Pure copper
- Material Shunt: Pure copper
- Measurement Power: Yes
- Energy Measurement: Yes
- Graphing Real Time: Yes
- Protection Features: Over voltage protection, Under voltage protection, Over current protection, Over temperature protection, Over power protection
- Bluetooth Connectivity: Yes
- Data Export Historical: Yes
- Temperature Monitoring: Yes
- Cable Connection Length: 3 meters, extendable to 30 meters
- Mobile App Compatibility: Yes
- Current Measurement Ranges: 0-100A, 0-400A, 0-600A
- Battery Capacity Monitoring: Yes
- Firmware Upgradable Wireless: Yes
- Calculation Charge/Discharge Time: Yes
- First listed by seller: 2/23/26
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Banggood
| Date | Price |
|---|---|
| 2/24/26 | $47.43 |
| 2/23/26 | $47.19 |
Shipping options
United States
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
JUNCTEK KG-F Series Wireless Bluetooth connectivity
|
JUNCTEK KL-F Bluetooth mobile app control
|
KEWEISI KWS-303 WiFi remote control via mobile app
|
ATORCH AT24CB W
|
Smart WiFi Energy Meter with Real-Time Power Monitoring Wi-Fi connectivity for remote access
|
RMshebei TUYA ZigBe Mobile phone remote control
|
|
| Brand | JUNCTEK | JUNCTEK | KEWEISI | ATORCH | eWeLink | RMshebei |
| Model | KG-F Series | KL-F | KWS-303 | AT24CB W | TUYA ZigBe | |
| Color | ||||||
| Rating |
|
|
|
|
|
|
| Price | $47.43 | $31.08 | $14.82 | $21.13 | $18.78 | $16.79 |
| Seller | Banggood | Banggood | Banggood | Banggood | Banggood | Banggood |
| Update | Mar 1, 2026 | Mar 3, 2026 | Mar 3, 2026 | Mar 3, 2026 | Mar 3, 2026 | Mar 3, 2026 |
| Voltage Range | 0-120V | 0-120V | AC 100-290V | AC 50-320V | ||
| Current Range | 0-600A | 0-40A | 0-100A | |||
