Stack’s Pro-Control range of Professional Stepper Motor Analogue Gauges brings total control and driver awareness of critical engine functions.
The Pro-Control series has all of the features of the Professional Analogue Gauges plus:
- Peak “tell-tale” Memory - Max temps, Min pressures
- Configurable max and min full dial alarm warnings
- Configurable Pro-Control output for activating accessories eg. fans, pumps, etc (requires relay)
- Temperature gauges with built-in “fan controller”
- Pressure gauges with built-in “pump controller”
- 0-5 Volt analogue output for data logger or ECU (except EGT and Fuel Level gauges)
- Configurable backlight colour
- Black dialface when powered off
Key Features:

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- 52mm diameter
- Fast, smooth stepper motor needle drive
- 270° full sweep movement for excellent readability
- Remotely mounted solid-state sensors keep hazardous fluids in the engine compartment
- Better than 2% accuracy
- All-electronic design for maximum reliability
- 7 Colour LED through-the-dial backlighting
- 7 Colour LED illuminated needle
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Full-dial alarm warning

User-configurable minimum and maximum alarms can be set, with one of seven different colours assigned to each.
As soon as an alarm level is exceeded, the full dialface changes colour. If the level exceeds the alarm by more than 10%, the dialface flashes rapidly to further alert the driver.
With a choice of 7 user-selectable LED backlighting colours ( red, green, yellow, blue, purple, turquoise and white) the user can choose the optimum colour for maximum visibility and readability of the gauge, day and night.
Pro-control feature *eg. built-in fan controller)

The Pro-Control feature activates low and high outputs whenever the user-defined alarm levels are exceeded. Pro-control outputs can be used to switch a relay to activate cooling fans, pumps, lamps, alarms, ignition kill etc.
Peak Recall
Press and hold the PEAK button to recall on the dial the highest temperature or lowest pressure or voltage since the memory was last reset.
Unrivalled accuracy
Precision stepper-motor needle movements and solid-state sensors ensure better than 2% accuracy.
Sensors & Wiring Harness Included
All Stack 52mm Professional gauges come complete with wiring harness and associated solid-state sensor (except for Fuel Level and Battery Voltage gauges).
Oil Pressure |
Pro-Control Professional Stepper Motor Analogue |
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ST3501 |
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0 -7 BAR |
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0-100 PSI |
M10x1 |
1/8NPT |
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Fuel Pressure (low) |
Pro-Control Professional Stepper Motor Analogue |
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ST3503 |
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0 -1 BAR |
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0-15 PSI |
M10x1 |
1/8NPT |
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Fuel Pressure (high) |
Pro-Control Professional Stepper Motor Analogue |
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ST3505 |
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0 -7 BAR |
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0-100 PSI |
M10x1 |
1/8NPT |
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Water Temperature |
Pro-Control Professional Stepper Motor Analogue |
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ST3507 |
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40-120°C |
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100-260°F |
1/8NPT |
1/8NPT |
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Oil Temperature |
Pro-Control Professional Stepper Motor Analogue |
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ST3509 |
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40-140°C |
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140-280°F |
1/8NPT |
1/8NPT |
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Boost Pressure |
Pro-Control Professional Stepper Motor Analogue |
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ST3511 |
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-1.0 to +2.0 BAR |
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-30inHg to +30 PSI |
M10x1 |
1/8NPT |
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Note: This gauge does not feature 0-5 Volt analogue output for data logger or ECU. |
Note: This gauge does not feature 0-5 Volt analogue output for data logger or ECU. |
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Exhaust Gas Temperature |
Pro-Control Professional Stepper Motor Analogue |
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ST3513 |
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0-1100°C |
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0-2000°F |
1/8NPT |
1/8NPT |
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Note: This gauge does not feature 0-5 Volt analogue output for data logger or ECU. |
Note: This gauge does not feature 0-5 Volt analogue output for data logger or ECU. |
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Fuel Level (Programmable) |
Pro-Control Professional Stepper Motor Analogue |
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ST3515 |
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Programmable |
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Note: This gauge does not feature 0-5 Volt analogue output for data logger or ECU. |
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Battery Voltage |
Pro-Control Professional Stepper Motor Analogue |
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ST3516 |
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8-18 V |
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Customer Application

The above installation of Pro-Control gauges is from Studie AG's project car Z4 (see above). Often called "The Coolest Tuning Shop in the World", the company is run by Yasuaki "Bob" Suzuki, a BMW aficionado. He has tuning centers in several cities, including Kobe, Sendai with the headquarters is in Yokohama City. However, Studie recently opened a new showroom and workshop facility in Tokyo. The gauges are supplied in Japan by 3D Design.
Specifications
ST3501 |
Oil Pressure 0-7
bar (M10x1) |
ST3502 |
Oil Pressure 0-100PSI (1/8NPT) |
ST3503 |
Fuel Pressure 0-1 Bar (M10x1) |
ST3504 |
Fuel Pressure 0-15 PSI (1/8NPT) |
ST3505 |
Fuel Pressure 0-7 Bar (M10x1) |
ST3506 |
Fuel Pressure 0-100 PSI (1/8NPT) |
ST3507 |
Water Temperature 40-120°C (1/8NPT) |
ST3508 |
Water Temperature 100-260°F (1/8NPT) |
ST3509 |
Oil Temperature 40-140°C (1/8NPT) |
ST3510 |
Oil Temperature 140-280°F (1/8NPT) |
ST3511 |
Boost Pressure -1.0 to +2.0 Bar (Uni) |
ST3512 |
Boost Pressure -30inHg to +30 PSI (Universal T-Fitting)) |
ST3513 |
Exhaust Gas Temp. 0-1100°C (1/8NPT) |
ST3514 |
Exhaust Gas Temp. 0-2000°F (1/8NPT) |
ST3515 |
Fuel Level (programmable) |
ST3516 |
Battery Voltage 8-18 V |




Where to buy Stack
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