Features Hige Quality: The audio generator module is integrally formed with a glossy shell without burrs and smoothly installation. The generator shell is made of ABS material, which can resist oxidation and corrosion and increase the service life. Sub-tone Function: The RF signal generator increase the analog sub-tone digital sub-tone function, strong anti-interference ability, signal transmission is not interfered. Add analog consonant and digital consonant functions. Easy to Operate: Small in size and light in weight, it can be operated with one hand, allowing the operator to reduce wrist fatigue. The accuracy is very high. The actual receiving sensitivity can be tested. Note: Please note that the colors of the buttons will be sent randomly, and make sure you will not mind before ordering. The frequency is 7 digits, such as 439.6000MHZ will display 4396000KHZ. Signal strength ‑70‑‑132dBm is valid, other values are invalid. Audio modulation is about 800Hz, other values are invalid. Wide Application: The RF signal generator applicable to FM commissioning. Widely used in aviation, wireless communication, automotive electronics, manufacturing and other fields. Specification: Item Type: Signal Generator Material: ABS Frequency: 0.5MHZ‑470MHZ Signal Strength: -70-132dBm Built-in 800Hz audio modulation The new model adds analog sub-tone digital sub-tone function. Use 8--12V DC power supply Package List: 1 x RF Signal Generator 1 x Bracket 1 x User Manual Package List 1 x RF Signal Generator 1 x Bracket 1 x User Manual