Sensors and Interfaces

Sensors & Interfaces

Stack provide a wide range of sensors and specialist interfaces to meet the vast majority of Motorsport requirements. We only offer sensors that have passed our rigorous testing program, and have proven suitable for Motorsport Applications.

Digital Sensors and Interfaces
These sensors and interfaces, used in conjunction with our “E” Input Expansion Modules, provide continuous analogue averaging of the input signal (no digital sampling whatsoever) over the sampling period (5mSec to 1 Second). This gives the following significant benefits over conventionally sampled analogue inputs:

Recorded/ displayed values are the true average value for the sampled period - there is zero sampling error
Inherently eliminate potential for aliasing errors
Enables slow recording rates for high frequency inputs without loss of information - e.g. Suspension movement, which has a typical frequency response of 1-2 kHz, can be recorded at 10Hz for measuring pitch and roll
Up to 15 bit resolution (0.003%) and <0.5% total error over the whole operating range of a sensor

Our range of digital sensors and sensor amplifiers include:

5mV to 20V differential input amplifiers
K-Type Thermocouple Interface
Absolute Pressure Sensors
50mm to 200mm Linear Displacement Transducers

Solid State 0-5 Volt Output Sensors
These sensors typically offer 1% accuracy - over their whole operating range - and are ideal for monitoring chassis and engine parameters where Digital Signal Processing is not required. The range of sensors includes:

0-3.5 bar, 0-10 bar, 0-100 bar Pressure Sensors
-30 to 150 deg C Temperature Sensors
50mm to 200mm Linear Displacement Sensors
+/- 5g Accelerometer

Automotive Sensors
We also supply a range of automotive spec. pressure, temperature and rotary displacement sensors suitable for measuring basic engine condition and driver inputs. This range includes:

0-2bar, 0-10 bar Pressure Sensors
-20 to 30 deg C, 0 to 150 deg C Temperature Sensors
120 degree, 360 degree Rotary Throttle & Steering Position Sensors

Quick Find Sensor Listing

STSensor	Description	Thread	Output
ST453	Pressure Sensor (Absolute) 0-3.5 Bar	1/8^th NPTF (M)	0-1Khz
ST464	Thermocouple Interface 0-200°C		0-1Khz
ST483	V to F Interface 0-5v in		0-1Khz
ST492	Pulse Amplifier		0-1Khz
ST657	1ch Thermocouple I/F K-Type 0-200°C		0-5 Volt
ST658	1ch Thermocouple I/F K-Type 200-1100°C		0-5 Volt
ST659	4ch Thermocouple I/F K-Type 200-1100°C		0-5 Volt
ST663	Thermocouple I/F K-Type 0-200°C		0-40Khz
ST664	Thermocouple I/F K-Type 200-1200°C		0-40Khz
ST669	Wheel Speed Sensor for Karts
ST670	Proximity Sensor M8	M8 x 1 (M)	0-2Khz
ST693	Lambda Oxygen Sensor + ST682 I/F	M18 x 1.5 (M)	0-40Khz
ST697	H.T. Pickup
ST739	Pressure Sensor (Absolute) 0-2 Bar	1/8^th NPTF (M)	0-5 Volt
ST740	Pressure Sensor (Absolute) 0-3.5 Bar	1/8^th NPTF (M)	0-5 Volt
ST741	Pressure Sensor (Gauge) 0-2 Bar	M10 x 1 (M)	Resistive
ST742	Pressure Sensor (Gauge) 0-2 Bar	1/8^th NPTF (M)	Resistive
ST744	Pressure Sensor (Gauge) 0-10 Bar	M10 x 1 (M)	Resistive
ST745	Pressure Sensor (Gauge) 0-10 Bar	1/8^th NPTF (M)	Resistive
ST746	Pressure Sensor (Gauge) 0-10 Bar	1/8^th BSPT (M)	Resistive
ST747	Pressure Sensor (Gauge) 0-10 Bar	1/8^th NPTF (M)	0-5 Volt
ST749	Brake Pressure Sensor 0-100 Bar	1/8^th NPTF (M)	0-5 Volt
ST751	Pressure Sensor 0-200 Bar	¼ BNC (F)	0-5 Volt
ST760	Fluid Temperature Sensor -20 +150°C	1/8 BSP (M)	Resistive
ST761	Fluid Temperature Sensor -20 +150°C	M14 x1.5 (M)	Resistive
ST762	Fluid Temperature Sensor -20 +150°C	M10 x1 (M)	Resistive
ST764	Fluid Temperature Sensor -20 +150°C	1/8^th NPTF (M)	Resistive
ST765	Air Temp Sensor -20°C +80°C	M10x1.25 (M)	16.5k – 315W
ST766	Thermocouple Probe 3mm		K-Type
ST767	Rubbing Brake Thermocouple		K-Type
ST769	Fluid Temperature Sensor -30 +150°C	M6	0-5 Volt
ST770	Throttle Position Sensor (5v supply pin 3)		0-5 Volt
ST771	Rotary Steering Sensor 340° (5v pin 3)		0-5 Volt
ST778	Kart Rotary Steering Sensor 340° (5v pin 3)		0-5 Volt
ST779	Kart Throttle/Brake Position Sensor 105°		0-5 Volt
ST791 (691)	5G Accelerometer		0-5 Volt
ST793 (993)	Lambda Oxygen Sensor	M18 x 1.5 (M)	0-1 Volt
ST970	Throttle Position Sensor (5v supply pin 2)		0-5 Volt
ST972-3	Linear Position Sensor 0-50,100mm		0-5K Ohms
ST974	Linear Position Sensor 0-200mm		0-10K Ohms
ST976	String Pot 317.5mm		0-10K Ohms
ST978	Rotary Steering Sensor 340° (5v pin 2)		0-5K Ohms
ST979	Throttle Position Sensor 105°		0-5K Ohms
ST982-4	Voltage Sensor Interface 0-1,5,20 volts		0-40Khz
ST990	Air Temperature Sensor	M10x1.25 (M)	0-5 Volt
ST991	Fluid Temperature Sensor -30 +150°C	M6	0-5 Volt
ST994	1 Ch Lambda Sensor		0-5 Volt
ST995026	K-Type 0-5volt 400F 1ch Thermocouple I/F		0-5 Volt
ST995027	K-Type 0-5volt 2000F 1ch Thermocouple I/F		0-5 Volt
ST995028	K-Type 0-5volt 2000F 4ch Thermocouple I/F		0-5 Volt

Lap Timing System

ST543

Infrared Lap Timing System receiver only

ST544

Infrared Lap Timing System trackside beacon only

ST546

Infrared Lap Timing System receiver & beacon

ST918041

Master Beacon Decoder Key

Temperature Sensors

ST663

-100C to +200C K-Type Thermocouple Amplifier with DSP Interface

ST664

200-1200C 'K' Type Thermocouple Interface with DSP Interface

ST464

200-1200C 'K' Type Thermocouple Interface with Low Freq DSP Interface (for use on Pulse Inputs)

ST657/
ST658

1 channel K-Type Thermocouple Interface
0-200°C 0-5V / 0-1100°C 0-5V

ST659

4 channel K-Type Thermocouple Interface
0-1100°C 0-5V

ST760*

150 ºC Fluid Temp. Sensor (1/8 BSPT)

ST761*

Analog Fluid Temperature Sensor only (M14)

ST764*

300 ºF Fluid Temp. Sensor (1/8 NPTF)

ST765

Air Temp Sensor
-20°C +80°C
M10x1.25 (M)

ST990

Air Temp Sensor
M10x1.25 (M)

ST991

-20 to 150 deg C temperature sensor
(M6x1)

Pressure Sensors

ST452-109

0-5 Bar Absolute Pressure Sensor with Low Freq DSP Interface (0.5% FS Total Error Band over -20C to +80C) Dash-3 Pressure Fitting (e.g. Boost)

ST453

0-3.5 Bar Absolute Pressure Sensor with Low Freq DSP Interface (1.5% FS Total Error Band over -20C to +80C) 1/8NPT Pressure Fitting (e.g. Boost)

ST740

0 to 3.5 bar/ 50 psi boost sensor (1/8"NPTF) (replacement only)

ST741

0-2 bar Fluid Pressure Sensor (M10)

ST742

0-30 psi Fluid Pressure Sensor(1/8 NPTF)

ST744

0-10 bar Fluid Pressure. Sensor (M10)

ST745

0-150 psi Fluid Pres. Sensor (1/8 NPTF)

ST746

0-150 psi Fluid Pres. Sensor (1/8 BSPT)

ST747

10 bar/150 psi pressure sensor

(M10)
(1/8 NPTF)
(1/8 BSPT)

ST749

Brake pressure sensor
(1/8 NPTF)

Pulse Sensors

ST492

Pulse Amplifier (e.g. Gearbox Sensor Amplifier)

ST669

Magnetic Speed Sensor

ST670

Proximity Speed Sensor

Displacement Sensors

ST667

Linear Potentiometer with DSP Interface 150mm/6" (e.g. Suspension)

ST672

Linear Potentiometer with DSP Interface 50mm/2" (e.g. Suspension)

ST673

Linear Potentiometer with DSP Interface 100mm/4" (e.g. Suspension)

ST674

Linear Potentiometer with DSP Interface 200mm/8" (e.g. Suspension)

ST970

Rotary Potentiometer 120Deg (e.g.Throttle angle)

ST970/483

Throttle Sensor (for spindle w/flat) with low frequency DSP Interface

ST972

Linear Potentiometer 50mm/2" (e.g. Suspension)

ST973

Linear Potentiometer 100mm/4" (e.g. Suspension)

ST974

Linear Potentiometer 150mm/6" (e.g. Suspension)

ST977

Linear Potentiometer 200mm/8" (e.g. Suspension)

ST976

300mm/20" String Potentiometer (0-5V output)

ST983

300mm/20" String Potentiometer with DSP Interface

ST978

Rotary Potentiometer 360Deg (e.g.Steering)

ST979

Rotary Potentiometer Sensor 120Deg (e.g. pedal angle)

ST979/
483

Pedal Angle Sensor with low frequency DSP Interface

Force/Acceleration Sensors

ST791

+/- 5g Accelerometer with 5Hz 5-pole Butterworth Low-pass Filter

ST791/
483

+/- 5g Accelerometer with with 5Hz 5-pole Butterworth Low-pass Filter & Low Freq DSP Interface

Voltage Sensors

ST982	+/-1.0V Differential Voltage Interface with DSP Interface
ST983	+/-5.0V Differential Voltage Interface with DSP Interface
ST984	+/-20.0V Differential Voltage Interface with DSP Interface
ST985	+/-5mV output Strain gauge amplifier with DSP Interface, 300 Ohm bridge
ST985	+/-10mV output Strain gauge amplifier with DSP Interface, 300 Ohm bridge
ST987	+/-20mV output Strain gauge amplifier with DSP Interface, 300 Ohm bridge
ST988	+/-50mV output Strain gauge amplifier with DSP Interface, 300 Ohm bridge

Miscellaneous Sensors

ST483

Low Freq DSP Interface to enable some 0-5Volt sensors to be connected into a digital input

ST697

HT Ignition Pickup

ST766

"K' Type Thermocouple Probe

ST767

Rubbing Thermocouple Probe

ST769

-20 to 150 deg C temperature sensor (M6x1)

ST782

0-200C Infra-red Pyrometer ('K' Type Thermocouple output)

ST995

5Hz GPS Receiver with NMEA Interface

Note: Sensors shown include products from Stack Test & Engineering range as well as Motorsport variants

Operating temperature range	-20ºC to +70ºC (extended range possible)
Mechanical size	151 (160 inc. connectors) x 76 x 20.5 mm
Finish	Hard black anodised aluminium
Weight	300g (approx.) without card
Operating voltage range	6.5 to 20 Volts DC
Reverse/Over-voltage protection	-60 Volts to +60 Volts DC
Power consumption	~3.0 Watts (~250 mA at 12 Volts DC)
Standby battery	Expected life > 5 year
Sealing	IP 67
Humidity	0-100% RH
Vibration	20g 50-2000Hz swept Sin. 12Hr x 3 axis
Radiated Emissions	EN55024B CISPR25
Radiated Immunity	50V/m
Conducted Immunity	DIN40839 Cat IV
Disk Interface	PCMCIA
Maximum address range	32 GB
Disk supply voltage	3.3 Volts
Disk format	IBM PC, FAT-32
File format	MPEG-2, Windows Media Player compatible
Video standards supported	PAL (625 lines), NTSC (525 lines), Composite & S-Video
Video frame rate	PAL 25fps, NTSC 30fps
Video input level	1 Vpp, 75 Ohm, ±10%
Video monitor output	1 Vpp, 75 Ohm, ±10% (includes on-screen display)
Power up to record time	< 2 seconds
Compression Format	MPEG-2
Quality ( /bitrate)	4 user selectable settings: Highest High, Medium, Low
Number of Audio channels	2
Input Level	Mic or Line Level. +3 to -30dBV (adjustable)
Input impedance	>10 K Ohm
Mic bias	3.3 V DC, 1 K Ohm
Audio monitor output	0 dBV (nominal)
Audio monitor output impedance	< 100 Ohm
Digital sampling: Full Res.	720 x 576 (PAL) / 720 x 480 (NTSC)
Digital sampling: Med. Res.	480 x 576 (PAL) / 480 x 480 (NTSC)
Digital sampling: Small Res.	352 x 576 (PAL) / 352 x 480 (NTSC)
Digital sampling: Smallest Res.	352 x 288 (PAL) / 352 x 240 (NTSC)
Record Time (min/GB) Full Res:	55(Highest) 39(High) 30(Medium) 24(Low)
Record Time (min/GB) MedRes:	70(Highest) 48(High) 37(Medium) 30(Low)
Record Time (min/GB) Small Res:	83(Highest) 60(High) 47(Medium) 39(Low)
Record Time (min/GB) Smallest Res:	111(Highest) 83(High) 66(Medium) 55(Low)

Frequently Asked Questions

If you haven't been able to find the information above then we can offer more help here in our FAQ section. Your Stack dealer will be happy to assist you further.

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