1 20~75Hz Frequency meter, flame retardant, high durability and environmental protection, firm construction. 2 Easy to identify the working state, having long life and low energy consumption, clear printing and high brightness. 3 Dust can be effective prevented from getting into the indicator lamp interior due to the enclosed shell design. 4 AD16-22DHZ of the model, great for electricity, other equipment signal indicating and frequency displaying. 5 Made of high strength plastic, has good impact resistance, more safe and convenient in usage and installation.
What's in the box
1 x Frequency Meter
