White & Silver dialface options now available!

By popular demand, Stack has expanded its range of Professional Stepper Motor Gauges with white and silver dial face options on selected gauges.

The selected white and silver dial face gauges have white LED backlighting and orange illuminated needles.

Wide-band Air-Fuel (Lambda) Gauges
This is the ultimate tuning aid! Dual digital and radial LED displays provide accurate real-time readout of either air/fuel ratio or lambda (user-selectable). A 0-4Volt analogue output can be connected to a data-logger or to an ECU to provide real-time closed-loop feedback for improved mapping. Supplied complete with wiring harness and includes Bosch sensor. User-selectable Air/Fuel or Lambda real time display Programmable Alarm warns of dangerous lean condition Peak Recall of leanest value during last run Suitable for all fuel types with AFR from 6:1 to 20:1 (not recommended for leaded fuel) 0-4 Volt Data Logger or ECU output   The product can be used with the following fuels: Fuels Stoichiometric Air/Fuel Ratio Unleaded Petrol 14.7:1 Methanol 6.4:1 Ethanol 9.0:1 LPG (Propane) 15.5:1 CNG 17.2:1 Stoichiometric Air/Fuel Ratio is the chemically correct ratio where theoretically all the oxygen and all of the fuel are consumed. The mixture is nether rich or lean. Note: The product is suitable for use with Nitrous oxide (where legal).
Wide-band Air-Fuel (Lambda) Gauge
ST3401
ST3402
Manual also available in German, French & Italian.
Includes sensor as standard:

Wide-band Lambda O2 Sensor

This sensor is NOT recommended for leaded fuel or two stroke engines.

Gauge comes complete with wiring harness and associated sensor. Replacement sensors available.

These precision auxiliary instruments combine digital microprocessor accuracy with a high-precision stepper motor needle movement, to provide a new level of accuracy and reliability in 52mm gauges. They combine the durability and readability of 270° mechanical gauges with the easy installation and safe operation of conventional electric gauges.

The 270° dialface together with the new white LED backlighting and illuminated needle ensure excellent readability day or night.

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 White LED through-the-dial backlighting Black dialface with White LED illuminated needle or White dialface with Orange LED illuminated needle

Roll over images below to see illuminated state.

Oil Pressure
Professional Stepper Motor Analogue
ST3301			ST3302
0 -7 BAR			0-100 PSI
M10x1			1/8NPT
ST3351			ST3352
ST3371			ST3372

Fuel Pressure (Low)
Professional Stepper Motor Analogue
ST3303			ST3304
0-1 BAR			0-15 PSI
M10x1			1/8NPT
ST3353

Fuel Pressure (High)
Professional Stepper Motor Analogue
ST3305			ST3306
0 -7 BAR			0-100 PSI
M10x1			1/8NPT
ST3355			ST3356
ST3375

Water Temperature
Professional Stepper Motor Analogue
ST3307			ST3308
40-120°C			100-260°F
1/8NPT			1/8NPT
ST3357
ST3377

Oil Temperature
Professional Stepper Motor Analogue
ST3309			ST3310
40-140°C			140-280°F
1/8NPT			1/8NPT
ST3359
ST3379

Boost Pressure
Professional Stepper Motor Analogue
ST3311			ST3312
-1.0 to +2.0 BAR			30inHg to +30 PSI
T-Fitting			T-Fitting
ST3361
ST3381

Exhaust Gas Temperature
Professional Stepper Motor Analogue
ST3313			ST3314
0-1100°C			0-2000°F
1/8NPT			1/8NPT
ST3363
ST3383

Fuel Level (Programmable)*
Professional Stepper Motor Analogue
ST3315
Programmable
ST3365
ST3385
*The Fuel Level gauge has 7 pre-set and a universal-programmable calibration, to suit all normal tank sensors with a resistance range of 0-280 ohms.

Battery Voltage
Professional Stepper Motor Analogue
ST3316
8 - 18 V
ST3366
ST3386

12 Hour Analog Clock
ST3317
12 hrs
ST3367
ST3387

All gauges come complete with wiring harness and associated sensor except fuel level and voltage gauges.

These low-priced electrical auxiliary instruments feature advanced 90° air-core movements and simple 3-wire installation. Electrical sensors keep hazardous fluids in the engine compartment. White LED backlighting and illuminated needle ensure excellent readability day or night.

52mm diameter 90° sweep No large connectors and tubing coming out the back. Can be mounted in more unusual positions without connections showing. Easier to install in tight areas. Easier to install a great distance from the item being measured. Stops fluids from entering the passenger compartment. Black dialface with White LED illuminated needle or White dialface with Orange LED illuminated needle

Oil Pressure
Electric Gauge
ST3201			ST3202
0 -7 BAR			0-100 PSI
M10x1			1/8NPT
ST3251			ST3252
ST3271

Water Temperature
Electric Gauge
ST3207			ST3208
40-120°C			100-250°F
1/8NPT			1/8NPT
ST3257
ST3277

Oil Temperature
Electric Gauge
ST3209			ST3210
60-150°C			140-300°F
1/8NPT			1/8NPT
ST3259
ST3279

Boost Pressure
Electric Gauge
ST3211			ST3212
0 to 2.5 BAR			0 to 35 PSI
M10x1			1/8NPT
ST3261
ST3281

Battery Voltage
Electric Gauge
ST3216
8 - 18 V
ST3266
ST3286

All gauges come complete with associated sensor (except voltage gauge).

This range of gauges have been specifically designed for vehicles with no or low powered electrical systems.

52mm diameter Black dialface with White LED illuminated needle or White dialface with Orange LED illuminated needle Bronze bourdon tube 270° sweep movement Mechanical gauges do not require 12V power to operate. They make direct physical contact with the item they are reading. They do this through tubing or lines, which eliminates the need for electric signals. Ideal for vehicles that operate on voltages other than 12V, with no voltage at all (magneto applications) or operate on a battery with no generator. Note: 12 volt supply is needed if backlighting required.

Oil Pressure
Mechanical Gauge
ST3101			ST3102
0 -1 BAR			0-100 PSI
M10x1			1/8NPT

Water Temperature
Mechanical Gauge
ST3107			ST3108
50-115°C			120-240°F
3/8BSP			1/8NPT

Boost Pressure
Mechanical Gauge
ST3111			ST3112
-1.0 to +2.0 BAR			-30inHg to +30 PSI
Universal Fitting			Universal Fitting
ST3161			ST3162
ST3181

Customer Application

Yoshihiro Nakahashi's 2006 BMW 320si (E90). Used by permission. More on Flickr.

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