Overview
The FNIRSI C1 is a specialized USB-C power meter that bridges the gap between portability and professional diagnostics. Unlike standard testers that use bulky USB-A ports, the C1 is a “straight-through” Type-C design. It features a high-definition 1.3-inch colour LCD and uses a dedicated 16-bit ADC chip to deliver $0.00001$ resolution. Whether you are a developer working on PD (Power Delivery) firmware or a hobbyist checking your phone’s charging speed, the C1 provides elite-level data in a pocket-sized form factor.
Key Features
Native USB-C Design: Male-to-Female Type-C ports ensure minimal signal loss and support for high-wattage Power Delivery.
Bluetooth Data Logging: Connect to the mobile app or PC software to record charging curves and analyze battery performance wirelessly.
PD Protocol Specialist: Advanced triggering and detection for PD 2.0/3.0, PPS, QC 2.0/3.0, FCP, and SCP.
Bi-Directional Testing: Can measure current in both directions—perfect for testing power banks that both charge and discharge through the same port.
Cable E-Marker Reader: Instantly identify the chips inside your USB-C cables to see if they actually support 100W or high-speed data.
Independent Power Supply: Features a Micro-USB “HID” port to power the tester independently, allowing you to measure from $0V$ without the tester shutting down.
Technical Specifications
| Feature | Specification |
| Voltage Range | 4.00V – 24.00V (Res: 0.00001V) |
| Current Range | 0.00A – 6.50A (Res: 0.00001A) |
| Power Range | 0W – 156W |
| Display | 1.3 Inch TFT Color LCD |
| Interface | Type-C (Male) to Type-C (Female) |
| Data Ports | Bluetooth (App) + Micro-USB (PC HID) |
| Offline Record | 10 Groups of Capacity Data |


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