Frequency Transducer compatibility

[Keith_J]

Temperature has no effect on the reading of the meter because the transducer's output is current which is the same all along the circuit. Now if the output were voltage, there would be thermal drift as the resistance of each element in the circuit.

 

[derf]

These are hard to beat for $20. They don't match the other components.
But, sometimes function before fashion is appropriate.

Diesel Generator easy voltage and frequency meter | eBay

The pic shows two, one reading V and one Hz. You only need one and you push the button to toggle between V and Hz.

 

[Isaac-1]

I agree they are nice, by chance I was just looking at mine today, only bad thing about them is they are a bit too dim to read in direct sunlight. One nice thing if you take them apart the input range marked on the circuit board goes up to 300V or so.

Ike

p.s. never mind they used to come in a plastic case with a standard plug adapter.