Inexpensive options for EGT / CHT for O-540

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Skylark23

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Skylark
I've recently got a share in a Cherokee 235 with a O-540. We only have a JPI fuel flow monitor and a stock single cylinder EGT gauge. What are some inexpensive options to add EGT and CHT for all 6 cylinders?

Buy a second hand JPI EDM 700 or a new 730? What are some good options that won't break the bank? We do have extra panel space.
 
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Used insight GEM
 
Insight G2. $3,000 installed, including 6 EGTs, 6 CHTs, voltage meter, carb temp, OAT, and FF.
 
The monitor is the cheap part. Chasing the numbers is where the money gets spent.

Pay attention to what models are approved for primary replacements, and also what the cost is to re-issue an STC permission letter to authorize its use. A deal on used equipment isn’t always a deal.
 
When you find what you think are excessive variance in CHT and/or EGT between cylinders. Let alone when one of the senders goes wonky and you pay a mechanic to inspect a cylinder. You’ll find out.
 
Another option:

Six Cylinder EGT / CHT Combination Kit

www.aerospacelogic.com www.aerospacelogic.com

Simple, clean, and easy to use.

I installed their 4-cyl CHT-only gauge in my Warrior. Did install myself (under supervision). EGT probes will complicate install.
 
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