Warning !

Zeenko offers laboratory-grade RF test equipment at an incredible value and with exceptional portability. However, please note that these devices are intended solely for general commercial engineering and standard laboratory use, and strict adherence to laboratory operating procedures is required to protect them from accidental damage! We cannot guarantee their performance for uses beyond this scope, such as in military, medical, aviation, aerospace, or maritime applications.

To ensure that your device is not damaged due to accidental operation, please note the following:

1. Do NOT exceed the maximum input power. Permanent damage to the instrument may occur.
The device port is labeled with a maximum allowable input. Please ensure that the input signal does not exceed the maximum allowable input power. If you are unsure of the input signal amplitude, adding an attenuator with a high attenuation factor can protect your device. Some wireless charging devices may emit high-power signals; please avoid close proximity to these devices. Please avoid placing test equipment with attached antennas near active radio transmitters.

2. AVOID STATIC DISCHARGE
Although we have made every effort to incorporate electrostatic protection measures, portable devices can only provide CAT I-level electrostatic protection to ensure the accuracy and sensitivity of RF measurements. Wearing the necessary antistatic equipment or grounding yourself before operating the equipment can effectively reduce the risks associated with static electricity. Please discharge any static electricity from the device under test before connecting it. Bare metal antennas can accumulate a significant amount of static electricity when rubbed against the air; be sure to ground and discharge the bare metal antenna before connecting it to the test instrument. Since portable devices do not have a reliable ground connection, and the inner conductor of an SMA connector may make contact first during connection, the potential difference between different devices could cause damage to the equipment. Making contact with the outer conductor of the SMA connector before connecting to the device under test can eliminate the potential difference between the devices and reduce the risk of electrostatic discharge.