Frequency range: 100kHz - 1GHz. Covering shortwave, FM to microwave bands, the PB-1000 is a powerful assistant compatible with everything from basic shortwave experiments and RF circuit debugging to microwave equipment repair. High impedance, low load: Extremely high impedance and extremely low capacitance ensure minimal "load effect" on the circuit under test during testing, making it particularly suitable compatible with online signal detection of high-frequency sensitive circuits, maximizing the reproduction of the circuit's true state without affecting its normal operation. Retractable probe: The probe tip features a flexible telescopic design, ensuring good contact with the test point while effectively preventing damage to the probe or circuit board due to accidental slippage. Detection capability: Enables online tracking and qualitative detection of RF signals. Maximum detectable voltage: 5Vp-p. Typical output: With an input of 0dBm RF power, the output DC voltage is approximately tens to one hundred millivolts (facilitating level indication when used with a standard multimeter). Product Model: PB-1000 Frequency Range: 100kHz - 1GHz Input Impedance: Greater than 1kOhms ( 50MHz) Input Capacitance: Less than 5pF ( 50MHz) Detection Voltage Range: Maximum 5Vp-p 0dBm Output Reference: Approximately tens to one hundred millivolts (DC) Probe Design: Retractable tip Total Probe Length: Approximately 11-12 cm Main Body Length: Approximately 8 cm Main Body Material: External plastic protective layer, comcompatible withtable to hold Output Interface (Default): SMA female connector (The product printed words may vary depending on the batch, but this does not affect use) Color: As Shown Material: Metal Package Contents: 1 x PB-1000 RF Voltage Probe Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.