• Rotary switch for single 2 1/4" indicator
• Indicator fits in box or can be mounted remotely
• Installation Instructions 

ALCOR Instruments and Probes

Don't waste your money on cheap instruments and probes. There is a big difference!

Increase engine life and enhance safety through proper monitoring

• Faster responding probes than low dollar alternatives
• Temperature compensated gauges for accuracy all year round at any altitude
• Single gauges monitor one cylinder, dual gauges for twin engine aircraft monitor one cylinder per engine. Add a selector switch to make an economical full engine analyzer. Lighted gauges and custom dials also available!

Alcor: A name you can trust

• Over 50 years experience - Designed, manufactured and supported in the USA
• Generous warranty: 3 years for gauges, 5 years for grounded probes, 1 year for ungrounded probes
• FAA-PMA/STC approved for all aircraft with reciprocating engines

Simple installation

• No power required from the aircraft (lighted gauges require power)
• Works even with an electrical failure
• Great for homebuilt or antique aircraft with no electrical system
• Gauges include all mounting hardware
• Standard 2 1/4" or 3 1/8" gauge sizes

Save with complete kits!