Set-Up Drawing for Tachometers using (T)1A3-4 senders
Set-Up Drawing for Tachometers using (T)1A9-X senders

Wiring Schematic for Tachometer with DB-9 Connector
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3-1/8" Tachometers
2-1/4" Tachometers
External Hourmeter
------- Magneto pickup T/N1A9-x Spec. sheet-------TSU 1A3-4 sender Spec. sheet (goes to mechanical port, replacing mechanical cable)
Walter Lom Tach sending unit
Lycoming & Continental engines Tach sending unit
90° engine end tach adapter @ Chief Aircraft (right click and copy/paste link in new tab)
90° tach sender adapter for Lycoming & Continental engines (if there is too tight space around the mechanical port)



Electronic Tachometers

2 1/4" Aircore - 270° Movement 3 1/8" w/Hourmeter - Aircore 270° Movement

2 1/4" Aircore - 270° Movement

3 1/8" Dual - Aircore 180° Tachometers

2 1/4" Aircore 270° Movement 1 1/4" Aircore 270° Movement

1 1/4", 2 1/4" & 3 1/8" Aircore Propeller tach for Rotax912/914 engines, connects to tach coil, calibrated to Propeller RPM, not Engine RPM! Custom color marking available, internal light optional! Hourmeter can be set to count engine time or flight time and preset to any numbers ---(must be done at UMA facility)!---Standard setting 800rpm & above. White or Antique yellow dial with black numbers available, per request!


3-1/8" Tachometers with Built-in Hourmeter (starts @ 1800rpm and above)
Part # Application Signal Source RPM Range Dial Marking
19-811-102 Lycoming/Continental Mech. Tach port 1A3-4 TSU 0-3500B&W
19-811-112 Lycoming/Continental Mech. Tach port 1A3-4 TSU 0-3500 GA 500-2700, RR 2700
19-811-101* Lycoming/Continental  Magneto pickup T1A9-(1 or 2) 0-3500 B&W
19-819-106Jabiru 12 Pole Mag/GeneratorLighting Coil0-3500B&W
19-819-206Rotax 503/582/618 using DCDITach Output0-7000B&W
19-819-201Rotax 912/914Tach Output0-7000B&W
19-819-206Rotax 377/477, Hirth, Bosch Mag/GenLighting Coil0-7000B&W
19-819-206Any 12 Pole Mag/GeneratorLighting Coil0-7000B&W
19-819-205Any 10 Pole Mag/GeneratorLighting Coil0-7000B&W
19-819-106Any 12 Pole Mag/GeneratorLighting Coil0-3500B&W
19-819-105Any 10 Pole Mag/GeneratorLighting Coil0-3500B&W
19-819-202Ignition (2 Pulses per rev)(-)Ignition Coil0-7000B&W
19-816-10x P-Lead connection (x=1 for 4cyl & C for 6cyl) Slick P-Lead 0-3500 B&W
19-819-203Ignition (3 Pulses per rev)(-)Ignition Coil0-7000B&W
19-819-204 Ignition (4 Pulses per rev) (-)Ignition Coil 0-7000 B&W
19-819-40D Rotec radial engine (7 cylinders)(3.5 Pulses per rev) 1 0-4000 B&W
19-81H-F1S Prop tach, 2.43:1 ratio, for Rotax 912/914 engines Signal Coil 0-3000 GA585-2250,YA2250-2350,RL@2350

*19-811-101 for 4 cylinder engines 19-811-10C for 6 cylinder engines

19-811-XXX require sending units:

N1A9-2D: Dual Bendix mag pickup
T1A9-1: Slick mag pickup (single mag)
T1A9-2: Bendix mag pickup (single mag)
1A3-4:  TSU (picks signal up from tach drive port)


Weight: 9.0 Oz. Case:ABS Valox 420 Plastic
Mounting Information 

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2-1/4" Tachometers (pin#4 for external hourmeter, starts@1800 rpm and above-standard setting)
Part # Application Signal Source RPM Range Dial Marking
19-511-102Lycoming/Continental Mech. Tach port 1A3-4 TSU 0-3500B&W
19-511-112Lycoming/Continental Mech. Tach port 1A3-4 TSU 0-3500GA 500-2700, RR 2700
19-511-101*Lycoming/Continental  Magneto pickupT1A9-(1 or2) 0-3500B&W
19-519-106Jabiru 12 Pole Mag/Generator Lighting Coil 0-3500B&W
19-516-10x P-Lead connection (x=1 for 4cyl & C for 6cyl) Slick P-Lead 0-3500 B&W
19-519-206Rotax 503/582/618 using DCDI Tach Output 0-7000B&W
19-519-201Rotax 912/914 Tach Output 0-7000B&W
19-519-206Rotax 377/477, Hirth, Bosch Mag/Gen Lighting Coil 0-7000B&W
19-519-206Any 12 Pole Mag/Generator Lighting Coil 0-7000B&W
19-519-205Any 10 Pole Mag/Generator Lighting Coil 0-7000B&W
19-519-106Any 12 Pole Mag/Generator Lighting Coil 0-3500B&W
19-519-105Any 10 Pole Mag/Generator Lighting Coil 0-3500B&W
19-519-202Ignition (2 Pulses per rev) (-)Ignition Coil 0-7000B&W
19-519-203Ignition (3 Pulses per rev) (-)Ignition Coil 0-7000B&W
19-519-204Ignition (4 Pulses per rev) (-)Ignition Coil 0-7000B&W
19-519-40D Rotec radial engine (7 cylinders)(3.5 Pulses per rev) 1 0-4000 B&W
19-51H-F1S Prop tach, 2.43:1 ratio, for Rotax 912/914 engines Signal Coil 0-3000 GA585-2250,YA2250-2350,RL@2250

*19-511-101 for 4 cylinder engines and 19-511-10C for 6 cylinder engines

19-511-XXX require sending units:
T1A9-1:  Slick mag pickup (mounts to the vent hole)
T1A9-2:Bendix mag pickup (mounts to the vent hole)
T1A3-4: TSU (mounts to the existing tach drive port)

For 1 1/4" Tach change 3rd digit in part # to 2 ie. 19-219-201 Weight:2.0 Oz. Case:ABS Plastic (1 1/4" uses Aluminum case)
Mounting Information 

NEW from UMA: Direct replacement for your old mechanical gauge below!


Minature Hourmeter (0-9,999.99)(starts counting when power ON)
Part # Voltage Resolution
13-300-10 (sq) 5-35 VDC 1/100 Hr
13-400-10 (round) 5-35 VDC 1/100 Hr

Weight 2 1/4": 9.8 Oz. Case: Plastic
Weight Minature: 1.8 Oz. Case: Plastic
Mounting Information: 2 1/4"Minature

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