EI’s products are the only ones we recommend to our customers.
- Customer
Hugo T. from Florida
- Aircraft
Cessna 177B
- EI Instrument
MVP-50P, CGR-30, UBG-16, EAC-1, EC-1, EC-1P, EC-2, TC-1P, C-1, C-2, C-4, C-6, CC-1P
8am–4:30pm PST M–F
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An Engine Monitor is only as good as its probes. That’s why Electronics International (EI) has taken the development of its probes, connectors, and accessories very seriously. EI has been designing and manufacturing probes for over 30 years. All of our probes have been designed in-house by our engineering team. Our team has studied, tested and designed temperature probes since the 1970′s. They have written research documents such as The Pilots Manual – Leaning and Diagnosing Engine Problems and Accurate CHT Measurements. Just as an Engine Monitor is only as good as its probes, a probe is only as good as its connector. That’s why EI’s engineering team developed EI’s proprietary OLC-2 connector. The OLC-2 connector greatly increases reliability and reduces installation errors as compared to traditional type connectors. Whether you’re looking for a reliable and accurate CHT, EGT, TIT or various other probe types, EI has what you need. With more than a half million probes sold and tested you can count on EI’s reliability.

| Model |
P-102-18 |
P-102-14 |
P-102-12 |
P-102-3/8 |
| Type | Gasket | Gasket | Gasket | Piggy Back |
| Used With | 18 mm Sparkplug | 14 mm Sparkplug | 12 mm Sparkplug | Primary CHT Probe (or Tanis Heater) |
| Max Operating Temp | 700°F | 700°F | 700°F | 700°F |
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P-102-3/8 CHT Probe
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$128

Type
Piggy-Back
Used With
Primary CHT Probe (or Tanis Heater)
Operating Temp Range
-80°F to 700°F Max.
Certifications
FAA, TSO’d, PMA’d
Configuration
Type K, Ungrounded
EI’s products are the only ones we recommend to our customers.
Very complete and thorough packaging. Well-prepped wiring harnesses. Quick and efficient turnaround time. Great communication throughout the process.
Your (customer) service is excellent!
. . . looks really good! Friends have these installed and give very good reviews.
I have worked with and installed a few of your competitors’ and your systems. EI instruments’ ease of use and installation make these systems my go-to choice and number one recommendation to customers.
Great to have all 6 egt’s, installation was straightforward. [I chose E.I. because of] price and availability.
Much better quality with the bezel and buttons and knobs [vs. competition]. Also much easier to navigate and add fuel.
I really appreciate the quality of communication about my order. The instrument offers the right functionality (being a primary instrument) in the right form factor for my application.
I like how the kits ship with everything needed for install and the wire labeling was very helpful.
The OPT-1 is more readable than the factory Cessna oil pressure/temp gauges.
[I chose EI because of its] reputation [and the] quality and appearance of the instrument.
EI shines in providing excellent customer support and its products are reliable, affordable and of high quality.