Welcome to the store! 1、60~500V AC digital voltage signal indicator, 20~75Hz frequency range, safe and convenient to use. 2、Clear printing and high brightness, easy to identify the working status, with long service life and low energy consumption. 3、Effectively reduce dust inside the indicator light, extending the lifespan for more durable use. 4、Flame retardant material, high durability and environmental protection, solid construction that is good for long-term work. 5、Perfect for electrical, telecommunications, machine tools, ships, printing, and other equipment signal indication and voltage display. Item Type: Voltage Signal Indicator Material: Plastic Model: FSV AD16-22 Voltage Range: 60~500V AC Frequency Range: 20~75Hz 1 x Voltage Signal Indicator Your 100% satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!