Easy to fit with P Mags. Works well.

Mike W Verified Purchase

Flight Data Sys Electric Tachometer T-30

Excellent little Tachometer! High quality material. Solid aluminum box (CNC). High quality workmanship. Easy to install. Works like a champ. Beautiful LCD display. Big numbers, easy to see it in day time and night (back illuminated). Highly recommend! I am very happy with it!

Lewis M Verified Purchase

Flight Data Sys Electric Tachometer T-30

excellent product..

Easy to install and set up with my electronic mag. Settings were quick and only had to adjust once to get the RPM fluctuation stabilized to my liking. Additional features are nice, I like the timer once the RPM hits 300.

Excellent product, easy install. I built the harness on the bench to simplify install in the RV8.

Installation was very easy. Installed in the existing tachometer opening. Wiring was straight forward and quick. I did run a second shielded wire for my Right Pmag. Installation and setup instructions were spot on for my installation.

Pleased with the features that this tachometer offers, plus it worked flawlessly using the resistance values recommended for Slick Magneto operation.

I love it compared to cable driven tach. Like its other features. Also like its price. Install was no worse than any other item on an airplane, it always seems that one must tear the airplane apart to make a relative simple adjustment. My unit worked with the min. resistors provided, my luck. I too would have been miffed if I needed to switch. At least no canopy, just windshield and sheet metal to gain access. I hope it continues to work. In general I like to avoid soldered joints. Been there/done that with P-leads/hot mags. before.....

Excellent unit. It removes the tach cable and huge head and replaces it with a small unit that just measured rpm by two wires to the back of the magneto switch (plus power). Highly recommended.

Very easy install work right off the hop I like the mag monitor and over speed alarm nice product for the price

Barry G Verified Purchase

Flight Data Sys Electric Tachometer T-30

Quick and easy to install. Worked as advertised and appreciated the ability to configure. Only frustration is that the left input is not configured and I could only stop the flashing temporarily, hence the four stars (in the manual is says it will stay off until another input is detected).

Humphrey B Verified Purchase

Flight Data Sys Electric Tachometer T-30

Just found out from Flight Data Systems that this will not work with 2-stroke engines that have a tachometer output of 6 pulses per cycle. This includes the Hirth 3203 as well as the Rotax 582.

Easy to see display. Worked first try with the suggested resistor setup. You will need shielded wire and 6-32 mounting screws. I am happy with the display, operation, and price.

My airplane has a gremlin that messes with tachs. I replaced mechanical tachs couple of times but they go haywire after 100 hrs or so. Replace with T30 on bendix mags at 197 TT, worked great, started acting up around 250 TT, jumpy readings, 1000 rpm, 3600 rpm ! (O360). I have changed resistors multiple times, worked through all the settings. Now, with correct values, it reads 2x rpm. I have decided it US, and going back to mechanical. Good Tach but only lasted 100 hrs.

If I could, I'd give this unit 5 stars for operation, but 2 stars for ease of installation. I built an entire airplane and installed all the avionics myself, but found the installation of the T-30 difficult. First, it has to be connected to the ignition switch (or the mags themselves) via shielded wire (not provided). On my aircraft, gaining access to the ignition switch involved removing both the canopy and the glareshield. Then, isolation resistors must be soldered between the ignition switch and the shielded wire to the T-30 - a tedious job. The factory-recommended resistors didn't work on my aircraft with Bendix mags and the T-30 display was jittering all over the place and was totally unusable. After contacting tech support, they recommended that I install more resistance in the lines, which I did. That involved removing the unit from the panel - again - and soldering the resistors in series with the shielded cable. The T-30 is working fine now - rock solid readings - but it took me a couple of weeks to get it right. It seems to be a good tachometer once you get it working.

Note: This unit is not compatible with the Tach2 adapter for a SureFly electronic mag and a Slick mag--at least in my RV. After spending several hundred dollars on a professional avionics technician who tested the Tach 2 and the T-30, and did everything Flight Data System and SureFly suggested, the T-30 simply wouldnt work. After months of frustration, I gave up and installed a mechanical tach. However, Flight Data did make good on their promise to provide a full refund, and they worked with me to try to solve the problem.

As much as the Unit cost it should have had instructions, I sent it back to the vender, My A&P said he did not have time to got search the web for instructions on hook it up

Malcolm D Verified Purchase

Flight Data Sys Electric Tachometer T-30