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Old 12-14-2011, 03:00 PM
Leonard_Smith_nz Leonard_Smith_nz is offline
Join Date: Feb 2005
Posts: 63
Default TMX O-360 + Micromonitor: Oil Temp Sensor


I have this particular combination in my aircraft. After 5 years of faultless use the oil temperature sensor is playing up.

I'm almost 100% certain that I bought the sensor from Ron at Rocky Mountain Instruments, but I've not been able to get hold of him. I would appreciate if someone could assist with the identification of this particular part and possibly provide suggestions as to where it can be procured.

Image attached for clarification


Leonard Smith
ZK-VRV (RV6: TMX O-360, Sensenich FP 85", VFR)
New Zealand
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Old 12-14-2011, 05:59 PM
Eric Petersen Eric Petersen is offline
Join Date: Oct 2007
Location: Minnetonka, Minnesota
Posts: 16
Default MicroMonitor Oil Temp Sensor

It has been a long time since I did this, but I think it is a sensor that the builder assembles using the part listed below.

Excerpt from Rocky Mountain Web site:
"Outside Air Temp or Oil Temp Sensor

This is an integrated circuit sensor AD590-JH. part number AD590JH. No other sensor compatible."

My assembly manual is at the hangar 35 miles away. I will look for it on my next visit. Hope this helps some...

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Old 12-14-2011, 06:16 PM
Eric Petersen Eric Petersen is offline
Join Date: Oct 2007
Location: Minnetonka, Minnesota
Posts: 16
Default Oil Temp Sensor Assembly Instructions

I found the Sensor assembly instructions on page 10 of the MicroMonitor Installation Manual on the Rocky Mountain web site ( Good luck!

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