Please Note: Our last order from Sparkfun for 2017 will be Friday, 8 December 2016 and this stock will arrive Wednesday, 13 December 2017.
Although backorders can still be placed online after this, we can only import the stock again Tuesday, 2 January 2018.
Riecktron wishes you a Merry Christmas and Happy New Year for 2018. Thank you for your support the past 11 years.

Flex / Force


Piezo Element
Piezo elements come in handy when you need to detect vibration or a knock. You can use these for tap or knock sensors pretty easily by reading the voltage on the output. They can also be used for a very small audio transducer such as a buzzer. Documents: Datasheet (7BB-20-6L0) Arduino Tutorial ..
R29.50 (inc VAT)
Flex Sensor 4.5"
A simple flex sensor 4.5" in length. As the sensor is flexed, the resistance across the sensor increases. Patented technology by Spectra Symbol - they claim these sensors were used in the original Nintendo Power Glove. I love the Nintendo Power Glove. It’s so bad! The resistance of the flex sensor changes when the metal pads are on the outside of the bend (text on inside of bend). Connector is 0.1" spaced and bread board friendly. Check datasheet for full specifications. Documents: Datasheet (FS7548) ITP Sensor Workshop Hookup Guide Bildr Tutorial ..
R326.00 (inc VAT)
Force Sensitive Resistor - Small
This is a small force sensitive resistor. It has a 0.16" (4 mm) diameter active sensing area. This FSR from Interlink Electronics will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR, its resistance will be larger than 1M?, with full pressure applied the resistance will be 2.5k?. Two pins extend from the bottom of the sensor with 0.1" pitch making it bread board friendly. These sensors are simple to set up and great for sensing pressure, but they aren’t incr..
R118.50 (inc VAT)
Flex Sensor 2.2"
A simple flex sensor 2.2" in length. As the sensor is flexed, the resistance across the sensor increases. Patented technology by Spectra Symbol - they claim these sensors were used in the original Nintendo Power Glove. I love the Nintendo Power Glove. It’s so bad! The resistance of the flex sensor changes when the metal pads are on the outside of the bend (text on inside of bend). Connector is 0.1" spaced and bread board friendly. Check datasheet for full specifications. Note: Please refrain from flexing or straining this sensor at the base. The usable range of the sensor can be flexed wi..
R178.00 (inc VAT)
FlexiForce Pressure Sensor - 1lb.
This is a piezoresistive force sensor from Tekscan. The harder you press, the lower the sensor’s resistance. Pressing lightly, the resistance changes from infinite to ~300k. The sensor itself is thin and flexible, but the resistance does not change while being flexed. Resistance changes only when pressure is applied to the round area at the end of the sensor. Used as a presence sensor (someone standing), weight sensor, pressure sensor (impact testing), etc. The overall length is about 8.5". Sensor comes with 0.1" spaced, reinforced, breadboard friendly connector. This sensor comes in three..
R504.00 (inc VAT)
FlexiForce Pressure Sensor - 25lbs (1" area)
This is a piezoresistive force sensor from Tekscan. The harder you press, the lower the sensor’s resistance. Pressing hard, the resistance changes from infinite to ~50k. The sensor itself is thin and flexible, but the resistance does not change while being flexed. Resistance changes only when pressure is applied to the round area at the end of the sensor. Used as a presence sensor (someone standing), weight sensor, pressure sensor (impact testing), etc. The overall length is about 2.25". The sensor comes with a 0.1" spaced, reinforced, breadboard friendly connector. This sensor ranges from..
R593.00 (inc VAT)
Geophone - SM-24
Need to put your finger on the pulse of the Earth? Did I just blow your mind? A geophone works by translating ground movement into voltage, which can easily be read by a microcontroller. The SM-24 geophone element is designed to offer the highest performance in seismic exploration based upon field-proven I/O Sensor technology. Low distortion, combined with excellent specifications, provide high-fidelity data. Basically, it’s a super low frequency microphone for the ground. Perfect for all of your 2-D & 3-D seismic exploration needs with bandwidth from 10 Hz up to 240 Hz Features: Tight s..
R1,453.00 (inc VAT)
Load Cell - 200kg, S-Type (TAS501)
This S-Type load cell (sometimes called a strain gauge) can translate up to 200kg of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response and proportion to the strain (e.g., pressure or force) applied to the form. With this gauge you will be able to tell just how heavy an object is, if an object’s weight changes over time, or if you simply need to sense the presence of an object by measuring strain or load applied to a surface. Each straight bar load cell is made from an alloy steel and is capable of reading a capacit..
R1,186.00 (inc VAT)
Load Sensor - 50kg
This load sensor, sometimes called a strain gauge, is the same one found in digital bathroom scales (you know, the ones you use in January for your New Year’s resolutions, and then forget about a month later). This sensor can measure up to about 110 pounds. Check the video below for a simple explanation on how these work and how to use them. Documents: Specifications Getting Started with Load Cells HX711 Breakout Hookup Guide Load Sensor Tutorial (NerdKits) ..
R207.50 (inc VAT)
Piezo Vibration Sensor - Large
This basic piezo sensor from Measurement Specialties is often used for flex, touch, vibration and shock measurements. A small AC and large voltage (up to +/-90V) is created when the film moves back and forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with solderable crimp pins. Features: Flexible PVDF Piezo Polymer Film Wide dynamic range Laminated for higher voltage output 0.1" breadboard friendly leads Documents: Datasheet (LDT0-028K) Technical manual ..
R59.50 (inc VAT)
Piezo Vibration Sensor - Small Horizontal
The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and ‘tap’ inputs from a user. A small AC and large voltage (up to +/-90V) is created when the film moves back an forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with machine pins that allows for horizontal mounting. We’ve seen this used as great musical inputs. Features: Flexible PVDF Piezo Polymer Film Wide dynamic ra..
R66.50 (inc VAT)
Piezo Vibration Sensor - Small Vertical
The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and ‘tap’ inputs from a user. A small AC and large voltage (up to +/-90V) is created when the film moves back an forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with solder pins that allows for vertical mounting. Features: Flexible PVDF Piezo Polymer Film Wide dynamic range Laminated for higher voltage output Breadboard ..
R66.50 (inc VAT)
SoftPot Membrane Potentiometer - 200mm
These are very thin variable potentiometers. By pressing down on various parts of the strip, the resistance linearly changes from 100Ohms to 10,000Ohms allowing the user to very accurately calculate the relative position on the strip. Can be used as an accurate positional indicator for CNC head positioning, variable user input (volume level input for example), straight user input (multiple button areas translate to given resistance levels), and many other applications. Unit comes with adhesive backing. Connector is 0.1" spaced and bread board friendly. However the connector does not fit nice..
R230.00 (inc VAT)
SoftPot Membrane Potentiometer - 500mm
These are very thin variable potentiometers. By pressing down on various parts of the strip, the resistance linearly changes from 100Ohms to 10,000Ohms allowing the user to very accurately calculate the relative position on the strip. Can be used as an accurate positional indicator for CNC head positioning, variable user input (volume level input for example), straight user input (multiple button areas translate to given resistance levels), and many other applications. Unit comes with adhesive backing. Connector is 0.1" spaced and bread board friendly. Note: These potentiometers work great ..
R400.50 (inc VAT)
SparkFun OpenScale
The SparkFun OpenScale is a simple-to-use, open source solution for measuring weight and temperature. It has the ability to read multiple types of load cells and offers a simple-to-use serial menu to configure calibration value, sample rate, time stamp and units of precision. Simply attach a four-wire or five-wire load cell of any capacity, plug the OpenScale into a USB port, open a terminal window at 9,600bps, and you’ll immediately see mass readings. The SparkFun OpenScale will enable you to turn a load cell or four load sensors in a Wheatstone bridge configuration into the DIY weigh scale ..
R533.50 (inc VAT)
Tilt Sensor - AT407
This AT407 basic tilt switch can easily be used to detect orientation. Inside the can is a ball that make contact with the pins when the case is upright. Tilt the case over and the balls don’t touch, thus not making a connection. There are numerous uses for these basic sensors, but keep in mind you might need to use some debouncing code, as the sensor isn’t immune to small vibrations and such. Documents: Datasheet GitHub (Firmware) ..
R29.50 (inc VAT)
Vernier Sensor - Dual-Range Force Sensor
This is the Vernier Dual-Range Force Sensor, a great general purpose apparatus that can be used to measure the push and pull of different objects and forces. This Vernier sensor is perfect when used as a replacement for a hand-held spring scale or when mounted on a dynamics cart to track and read collisions. Studying friction, some simple harmonic motion, and centripetal force information have never been easier to read. Each Dual-Range Force Sensor has a resolution range of between 0.01 Newtons to 50 Newtons, and all the hardware you will need to start measuring the push and pull of almost an..
R3,230.50 (inc VAT)
4-Way Tilt Sensor - RPI-1031
This tilt sensor can be used to detect multiple orientations. Inside the sensor are infrared emitters which are either reflected or not, depending on the orientation of the sensor. By reading the output of the various pins you can easily determine the orientation of the sensor and your project. Documents: Datasheet Product Page ..
R59.50 (inc VAT)
HotPot Membrane Potentiometer - 100mm
When you need to track movement in a volatile environment, HotPot provides a thin and sealed form-factor with operating temperature tolerances of -40 to +85C. The HotPot is the preferred product for industrial and outdoor applications. By pressing down on various parts of the strip, the resistance linearly changes from 100Ohms to 10,000Ohms allowing the user to very accurately calculate the relative position on the strip. Can be used as an accurate positional indicator for CNC head positioning, variable user input (volume level input for example), straight user input (multiple button areas tra..
R237.00 (inc VAT)
HotPot Rotary Potentiometer
When you need to track movement in a volatile environment, HotPot provides a thin and sealed form-factor with operating temperature tolerances of -40 to +85C. The HotPot is the preferred product for industrial and outdoor applications. By pressing down on various parts of the rotary dial, the resistance linearly changes from 100Ohms to 10,000Ohms allowing the user to very accurately calculate the relative position on the rotary. Can be used as an accurate positional indicator for rotational items, variable user input (volume level input for example), straight user input (multiple button areas ..
R230.00 (inc VAT)
Load Cell - 200kg, Disc (TAS606)
This disc load cell (sometimes called a strain gauge) can translate up to a whopping 200kg of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to, and proportional of, the strain (e.g. pressure or force) applied to the disc. With this gauge you will be able to tell just how heavy an object is, if an object’s weight changes over time, or if you simply need to sense the presence of an object by measuring strain or load applied to a surface. Disc load cells are a bit easier to mount than bar-style load cells, making ..
R1,267.50 (inc VAT)
Load Cell - 50kg, Disc (TAS606)
This single disc load cell (sometimes called a strain gauge) can translate up to 50kg of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to, and proportional of, the strain (e.g. pressure or force) applied to the disc. With this gauge you will be able to tell just how heavy an object is, if an object’s weight changes over time, or if you simply need to sense the presence of an object by measuring strain or load applied to a surface. Disc load cells are a bit easier to mount than bar-style load cells, making them ..
R1,267.50 (inc VAT)
SoftPot Membrane Potentiometer - 100mm
These are very thin variable potentiometers. By pressing down on various parts of the strip, the resistance linearly changes from 100Ohms to 10,000Ohms allowing the user to very accurately calculate the relative position on the strip. Can be used as an accurate positional indicator for CNC head positioning, variable user input (volume level input for example), straight user input (multiple button areas translate to given resistance levels), and many other applications. Unit comes with adhesive backing. Connector is 0.1" spaced and bread board friendly. Note: These potentiometers work great ..
R163.00 (inc VAT)
Softpot Rotary Potentiometer
These are very thin variable potentiometers. By pressing down on various parts of the rotary dial, the resistance linearly changes from 100Ohms to 10,000Ohms allowing the user to very accurately calculate the relative position on the rotary. Can be used as an accurate positional indicator for rotational items, variable user input (volume level input for example), straight user input (multiple button areas translate to given resistance levels), and many other applications. Unit comes with adhesive backing. Connector is 0.1" spaced and bread board friendly. Note: These potentiometers work gre..
R148.00 (inc VAT)
Wiper/Actuator -  1N to 3N Force
This is a small wiper/actuator that is used to provide adequate and even pressure on the surfaces of the potentiometers. Unit provides 1-3N of force. Specifications: M614 Threads One thread per 1mm 14mm length ..
R89.00 (inc VAT)
Force Sensitive Resistor - Long
This very long force sensitive resistor - over 2 feet - has a sensing area of 0.25x24". This FSR from Interlink Electronics will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR its resistance will be larger than 1M?. This FSR can sense applied force anywhere in the range of 100g-10kg. Two pins extend from the bottom of the sensor with 0.1" pitch making it bread board friendly. There is a peel-and-stick rubber backing on the other side of the sensing area to mo..
R496.50 (inc VAT)
Liquid Level Sensor - 8"
The eTape Liquid Level Sensor from Milone Technologies is a great way to measure the level of a liquid. It has a resistive output that varies with the level of the fluid. It does away with clunky mechanical floats, and easily interfaces with electronic control systems. The sensor’s envelope is compressed by the hydrostatic pressure of the fluid in which it is immersed. This results in a change in resistance that corresponds to the distance from the top of the sensor to the surface of the fluid. The sensor’s resistive output is inversely proportional to the height of the liquid: the lower the l..
R949.00 (inc VAT)
Load Cell - 10kg, Straight Bar (TAL220)
This straight bar load cell (sometimes called a strain gauge) can translate up to 10kg of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to, and proportional of, the strain (e.g. pressure or force) applied to the bar. With this gauge you will be able to tell just how heavy an object is, if an object’s weight changes over time, or if you simply need to sense the presence of an object by measuring strain or load applied to a surface. Each straight bar load cell is made from an aluminum-alloy and is capable of read..
R155.50 (inc VAT)
SoftPot Membrane Potentiometer - 50mm
These are very thin variable potentiometers. By pressing down on various parts of the strip, the resistance linearly changes from 100Ohms to 10,000Ohms allowing the user to very accurately calculate the relative position on the strip. Can be used as an accurate positional indicator for CNC head positioning, variable user input (volume level input for example), straight user input (multiple button areas translate to given resistance levels), and many other applications. Unit comes with adhesive backing. Connector is 0.1" spaced and bread board friendly. Note: These potentiometers work great ..
R118.50 (inc VAT)
SparkFun Load Sensor Combinator
The SparkFun Load Sensor Combinator is a bare PCB that combines four load sensors into a standard four-wire Wheatstone bridge configuration. If you open up an electronic bathroom scale, you’ll find a large rat’s nest of wires. The Load Sensor Combinator was created to combine the 12 wires found in a bathroom scale into the standard four-wire Wheatstone bridge configuration. This version of the SparkFun Load Sensor Combinator features a few changes that you specifically asked for! We updated the silk on the breakout to read “C/+/-” instead of “R/W/B” and moved the temperature sensor connector ..
R37.00 (inc VAT)
Load Cell - 10kg, Wide Bar (TAL201)
This wide bar load cell (sometimes called a strain gauge) can translate up to 10kg of pressure (force) into an electrical signal. Each load cell is able to measure the electrical resistance that changes in response to, and proportional of, the strain (e.g. pressure or force) applied to the bar. With this gauge you will be able to tell just how heavy an object is, if an object’s weight changes over time, or if you simply need to sense the presence of an object by measuring strain or load applied to a surface. Each wide bar load cell is made from an aluminum-alloy and is capable of reading a ca..
R259.50 (inc VAT)
Force Sensitive Resistor - Square
This is a force sensitive resistor with a square, 1.75x1.5", sensing area. This FSR will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR its resistance will be larger than 1M?. This FSR can sense applied force anywhere in the range of 100g-10kg. Two pins extend from the bottom of the sensor with 0.1" pitch making it bread board friendly. There is a peel-and-stick rubber backing on the other side of the sensing area to mount the FSR. These sensors are simple ..
R222.50 (inc VAT)
Force Sensitive Resistor 0.5"
This is a force sensitive resistor with a round, 0.5" diameter, sensing area. This FSR will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR its resistance will be larger than 1M?. This FSR can sense applied force anywhere in the range of 100g-10kg. Two pins extend from the bottom of the sensor with 0.1" pitch making it bread board friendly. There is a peel-and-stick rubber backing on the other side of the sensing area to mount the FSR. These sensors are simp..
R118.50 (inc VAT)
Piezo Vibration Sensor - Large with Mass
This basic piezo sensor from Measurement Specialties is often used for flex, touch, vibration and shock measurements. A small AC and large voltage (up to +/-90V) is created when the film moves back and forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with solderable crimp pins and a mass attached to the tip. This mass increases the sensitivity to motion. Features: Flexible PVDF Piezo Polymer Film Wide dynamic range Laminated for higher voltage output 0.1" breadboard friendly leads Documents: Datasheet..
R66.50 (inc VAT)
SparkFun Load Cell Amplifier - HX711
The SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the amplifier to your microcontroller you will be able to read the changes in the resistance of the load cell, and with some calibration you’ll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale, process control or simple presence detection. This version of the SparkFun Load Cell Amplifier features a few changes that you specifically asked for! We have separated the analog and digital supp..
R178.00 (inc VAT)
FlexiForce Pressure Sensor - 25lbs.
This is a piezoresistive force sensor from Tekscan. The harder you press, the lower the sensor’s resistance. Pressing hard, the resistance changes from infinite to ~300k. The sensor itself is thin and flexible, but the resistance does not change while being flexed. Resistance changes only when pressure is applied to the round area at the end of the sensor. Used as a presence sensor (someone standing), weight sensor, pressure sensor (impact testing), etc. The overall length is about 8.5". Sensor comes with 0.1" spaced, reinforced, breadboard friendly connector. This sensor comes in three fl..
R519.00 (inc VAT)
FlexiForce Pressure Sensor - 100lbs.
This is a piezoresistive force sensor from Tekscan. The harder you press, the lower the sensor’s resistance. Pressing hard, the resistance changes from infinite to ~300k. The sensor itself is thin and flexible, but the resistance does not change while being flexed. Resistance changes only when pressure is applied to the round area at the end of the sensor. Used as a presence sensor (someone standing), weight sensor, pressure sensor (impact testing), etc. The overall length is about 8.5". Sensor comes with 0.1" spaced, reinforced, breadboard friendly connector. This sensor comes in three fl..
R504.00 (inc VAT)
SparkFun Load Cell Amplifier - HX711
The SparkFun Load Cell Amplifier is a small breakout board for the HX711 IC that allows you to easily read load cells to measure weight. By connecting the amplifier to your microcontroller you will be able to read the changes in the resistance of the load cell and with some calibration you’ll be able to get very accurate weight measurements. This can be handy for creating your own industrial scale, process control, or simple presence detection. The HX711 uses a two wire interface (Clock and Data) for communication. Any microcontroller’s GPIO pins should work and numerous libraries have been w..
R178.00 (inc VAT)

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