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M655 – Five Function Indicator

Price range: $341.00 through $712.00

M655 Features

2 1/4″ STANDARD MOUNT OR FRONT MOUNT
OUTSIDE AIR TEMPERATURE (°F)
OUTSIDE AIR TEMPERATURE (°C)
PRESSURE ALTITUDE
DENSITY ALTITUDE
AIRCRAFT VOLTAGE
VOLTAGE ALARM (NOT ON NVG UNIT)
DEVIATION ALARM (NOT ON NVG UNIT)
SUNLIGHT READABLE DISPLAY
FAA-PMA APPROVED

Frequently Bought Together

Model Type

Clear

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Description

M655-1		MODEL 655-1 O.A.T. C & F/ PRESSURE & DENSITY ALT/ DC VOLTAGE/ (FRONT MOUNT) (TEMP. PROBE INCLUDED) VOLTAGE & DEVIATION ALARM
M655-2		MODEL 655-2 O.A.T. C & F/ PRESSURE & DENSITY ALT/ DC VOLTAGE (REAR MOUNT) (TEMP. PROBE INCLUDED) VOLTAGE & DEVIATION ALARM
M655-2-NVG		MODEL 655-2-NVG O.A.T. C & F/ PRESSURE & DENSITY ALT/ DC VOLTAGE (REAR MOUNT) (TEMP. PROBE INCLUDED) NVG GREEN A
655-PROBE		PROBE-7FT-RB TEMP PROBE 7FT RED/BLK TWISTED (ANALOG) 301,303,307& 655 , NOTE: UNITS WITH "D" IN THE SERIAL # USE A DIGITAL PROBE

Density Altitude: -10,000 to 30,000 ft.
Pressure Altitude: -1,000 to 62,700 ft.
Temperature Range: -55°C to +100°C, -67°F to +212°F
Accuracy: +/- 1% of full scale

Voltage Range: 10 to 32 Volts
Input Voltage: 14 to 28 Volts
Input Current: .35 Amps max.
Weight: 5 ounces
Warranty: 1 year

M655 with Digital Probe Brochure/Manual (PDF)
M655 Legacy unit with Analog Probe Brochure/Manual (PDF)
Electrical (PDF)
12 Pin White Molex Electrical (PDF)
Overall Dimensions (PDF)
Continuing Airworthiness (PDF)
Temp. Probe Digital 12ft Part # D307PS (PDF)
Temp. Probe Analog 7ft Part # 655-Probe (PDF)
NARCO MOD 5 (PDF)

INSTALLATION ELIGIBILITY

Beech Models 35, A35, B35, C35, D35, E35, F35, G35, H35, J35, K35, M35, N35, 35-33, and 35-A33

Frequently Asked Questions

Q: The "P" is flashing on my unit, what is wrong?

A: The unit is not seeing code or an incorrect code. Measure data lines. Is there a transponder present? If there is no transponder present, you need to provide pull up resistors to all the data lines. Bring all data lines up to 5 volts through a 27k to 100k resistor.

Q: Do I have to wire up pin 12, D4?

A: Only wire this pin if your aircraft goes over 33,000 ft.

Q: My unit locks up on startup and I can't change modes. If I cycle master switch, unit will again work fine. What is wrong?

A: Some older 655 units have a micro-processor that will lock up if unit drops to 11 volts. You can either send unit in for modification, or put the 655 on avionics master and turn on after engine start.