G618 is a handheld RF inspection tool with three separate antennas, a ten-level LED display and a rotary sensitivity control. It gives sound and vibration feedback while searching for active radio transmissions. The supplied specifications list a 1MHz–8GHz frequency range and a 1500mAh rechargeable battery. An RF alert is a lead for closer inspection, not proof that a particular device is present.
| Model | G618 |
|---|---|
| Listed RF range | 1MHz–8GHz |
| Antennas | Three separate RF antennas |
| Signal display | Ten-level LED bar |
| Alerts | Sound and vibration |
| Sensitivity | Rotary adjustment |
| Battery | 1500mAh rechargeable |
| Listed working time | 10–15 hours |
| Size | 187 × 51 × 20 mm |
Use separate antennas during an RF sweep
The G618 source sheet assigns its three antennas to 300–700MHz, 700–2700MHz and the 5.8GHz band. Fit the antennas as directed and start with a known active transmitter to learn how the LED bar reacts. The device may respond to ordinary phones, routers and other active equipment; move or switch off nearby sources when narrowing an unexpected signal.

Follow the signal with the LED bar
The ten-level display rises as the received signal strengthens. Walk slowly, compare readings from more than one direction and turn down sensitivity near a likely source. The control knob is visible at the bottom of the housing. Recheck any strong reading at close range before treating it as a device location.

Choose sound or vibration feedback
G618 lists a buzzer and vibration alert alongside the LED bar. The buzzer is useful when the display is out of view; vibration provides feedback during a quieter sweep. Neither alert identifies the transmitter type. The device depends on an active signal, so a physical inspection remains necessary for wired or powered-off equipment.

Battery and supplied parts
The product specification lists a 1500mAh rechargeable battery and ten to fifteen hours of operation. The supplied package list names a detector, charging cable and user manual. Confirm the antenna count, charging connector, cable and manual language on the approved sample before confirming a bulk order.

Wholesale price
Reference prices below follow the supplied G618 cost and agreed quantity bands. Share the order quantity, destination and required packaging when asking for a quote. Shipping is quoted separately.
| Order quantity | Reference unit price (USD) |
|---|---|
| 5–49 units | US$27.89 per unit |
| 50–199 units | US$27.36 per unit |
| 200–499 units | US$26.82 per unit |
| 500+ units | US$26.50 per unit |
Frequently Asked Questions
What can the Three-Antenna RF Signal Detector with Vibration Alert – G618 detect?
The Three-Antenna RF Signal Detector with Vibration Alert – G618 responds to active radio transmissions within the listed 1MHz–8GHz range. The separate antennas are intended for different signal bands. It can help narrow a transmitting source, but a switched-off, wired or non-transmitting device will not be found by an RF sweep alone.
How do the G618 antennas and sensitivity control work?
The Three-Antenna RF Signal Detector with Vibration Alert – G618 has three removable antennas and a rotary sensitivity control. The source sheet assigns one antenna to 300–700MHz, one to 700–2700MHz and one to the 5.8GHz band. Start at a useful sensitivity, then reduce it as the indicator rises to narrow a suspected transmitter location.
What alert modes are available on G618?
The Three-Antenna RF Signal Detector with Vibration Alert – G618 lists LED signal indication, an audible buzzer and vibration. The ten-level LED bar provides a visual signal-strength cue as the operator moves. Sound and vibration give additional feedback during a sweep. They indicate a detected transmission, not the identity or legal status of the transmitting device.
How long can the G618 run between charges?
The Three-Antenna RF Signal Detector with Vibration Alert – G618 is specified with a 1500mAh rechargeable battery and a listed operating time of ten to fifteen hours. Actual runtime depends on battery condition and how the sound, vibration and indicators are used. Charge a sample fully and test it under the intended inspection routine before a large order.
What should be checked before a wholesale G618 order?
The Three-Antenna RF Signal Detector with Vibration Alert – G618 is listed with a detector, three antennas, charging cable and user manual. Confirm the supplied contents, alert modes, charging connector, manual language and package on an approved sample. The four USD reference tiers use the G618 cost and agreed quantity multipliers; shipping is quoted separately.