Compel Groupgroup

Industrial & Machinery

1899 products available

Looking for industrial machinery parts that hold up in daily use? Compel stocks hydraulic fittings, pneumatic fittings, lifting equipment and automation components for plant, workshop and site maintenance.

The range runs from hydraulic pipe benders and high-pressure diaphragm pumps to recovery winches, pallet wrappers and CNC spares. We supply maintenance crews and machine builders who need machinery parts on spec and on time. Every product ships fast worldwide, with trade pricing and Pro discounts on repeat volumes.

1899 products in Industrial & Machinery

SGP41 Air 5V Measurement Gas Sensor, a multi-pixel TVOC/eCO2 Formaldehyde Carbon Dioxide Detector Tester, model GY-SGP41.

Gas Sensors

Multi-Pixel Gas Sensor | SGP41 Formaldehyde & VOC | 5V Air Detector

TBS-06442SENS-00292
$10.99
MICS-5524 air quality gas sensor module detecting CO, H2, CH4, and ethanol.

Gas Sensors

Quality Gas Sensor | Detects CO, H2, Methane | MICS-5524 Module

TBS-06449SENS-00298
$15.99
A MQ-7 carbon monoxide gas sensor detection module with a black sensor and green circuit board.

Gas Sensors

Sensor Module | MQ-7 Carbon Monoxide Detection | For Arduino Projects

TBS-06448SENS-00297
$10.99
D9 PM2.5 laser dust particle gas sensor module for indoor air quality detection in purifiers.

Gas Sensors

Gas Sensor for Air Quality | PM2.5 Laser Particle Detection Module

TBS-06441SENS-00291
$44.95
The HC-SR04 ultrasonic sensor module, a compact device for precise distance measurement in smart car applications.

Ultrasonic Sensors

Sensor | HC-SR04 Module | Distance Ranging for Arduino Robot Car

TBS-06403SENS-00263
$7.95
An MQ-2 gas sensor module designed to detect smoke, LPG, butane, and hydrogen for Arduino projects.

Gas Sensors

MQ-2 Gas Sensor Module | Detects Smoke, LPG & Butane | For Arduino Projects

TBS-06440SENS-00290
$4.49
An HC-SR04 ultrasonic sensor module for distance measurement, featuring two transducers and a control board.

Ultrasonic Sensors

HC-SR04 Ultrasonic Sensor | 4-Pin Distance Ranging Module | DIY Electronics

TBS-06437SENS-00287
$5.95
A white rectangular 2.4G WiFi gas sensor with a digital display, designed for detecting combustible gases.

Gas Sensors

WiFi Gas Sensor | App Push Alerts | For Home Combustible Gas Alarm

TBS-06436SENS-00286
$53.99
BME680 4-in-1 sensor module for temperature, humidity, pressure, and high-accuracy gas detection.

Gas Sensors

Gas Sensor | 4-in-1 Air Quality Module | Temp, Humidity, Pressure

TBS-06439SENS-00289
$8.95
45-in-1 Sensors Modules Starter Kit for Arduino Raspberry Pi, including a humidity sensor, better than 37-in-1, with storage box.

Sensor Accessories

Arduino Raspberry Pi Sensor Kit (45pc) | Modules for UNO R3 MEGA2560

TBS-06435ACCS-00606
$47.95
MQ135 gas sensor module for Arduino, designed for hazardous gas detection and air quality monitoring.

Gas Sensors

MQ-135 Gas Sensor Module | Air Quality & Hazardous Gas Detection | For Arduino

TBS-06438SENS-00288
$5.95
A SCD30 air quality sensor module for CO2, temperature, and humidity measurement, with a metallic casing.

Gas Sensors

SCD30 CO2, Temp & RH Module | Air Quality Gas Sensor

TBS-06434SENS-00285
$24.95
A hall effect sensor module for detecting magnetic poles, featuring a red PCB with a small black chip and pin headers.

Hall Effect Sensors

Effect Sensor | Magnetic Pole Discriminator | N/S Pole Detection Module

TBS-06433SENS-00284
$9.95
Five BMP280 atmospheric pressure sensor modules, offering high-precision digital barometric, temperature, and humidity sensing.

Pressure Sensors

Barometric Pressure Sensor Module | BMP280 Temperature | 3.3V-5V I2C

TBS-06402SENS-00262
$7.95
AHT10 high precision digital temperature and humidity sensor module with I2C interface.

Humidity Sensors

Sensor & Temp Module | AHT10 Digital I2C | Replaces DHT11 SHT20

TBS-06401SENS-00261
$7.95
Waterproof 1-meter SHT20/SHT30/SHT40 digital I2C humidity sensor with a stainless steel probe for accurate readings.

Humidity Sensors

Humidity Sensor | SHT40 I2C Probe | 1 Meter Stainless Steel Cable

TBS-06418SENS-00274
$11.99
A strain gauge bending sensor module Y3, a weighing amplifier module with digital sensor and program information for Arduino.

Strain Gauges

Sensor Strain Gauge | Includes Amplifier | Arduino Weighing Module

TBS-06432GAUG-00010
$5.95
XY-MD02 temperature and humidity transmitter module with SHT40 sensor, featuring Modbus RS485 signal output.

Humidity Sensors

Humidity Sensor | RS485 Modbus Transmitter | SHT40 Probe XY-MD02

TBS-06400SENS-00260
$11.99
An ACS758LCB-050B/100B/200B-PFF-T linear current Hall effect sensor module.

Hall Effect Sensors

Effect Sensor Module | ACS758 for 50A-200A Circuits | Linear Output

TBS-06399SENS-00259
$5.95
SCD40/SCD41 gas sensor module with I2C communication, precisely measures CO2, temperature, and humidity for environmental monitoring applications.

Gas Sensors

CO2, Temp & Humidity Sensor | I2C Module for Air Quality

TBS-06431SENS-00283
$36.95
A sleek white Tuya smart humidity sensor with a digital display showing temperature and humidity, compatible with Alexa and Google Home.

Humidity Sensors

Humidity Sensor | Backlit LCD Display | Alexa & Google Home Monitor

TBS-06398SENS-00258
$38.95
A rectangular foil strain gauge, a resistive sensor used for measuring strain, with soldering service available for precise application.

Strain Gauges

Strain Gauge | Precision Resistive Sensor | Optional Soldering Service

TBS-06430GAUG-00009
$2.49
Smart 3-pin DHT-11 DHT11 digital temperature and relative humidity sensor module with PCB for Arduino.

Humidity Sensors

DHT11 Temp & Humidity Sensor Module | Arduino DIY Kit

TBS-06397SENS-00257
$5.95
SCD40/SCD41 gas sensor module for CO2, temperature, and humidity sensing via I2C.

Gas Sensors

CO2, Temp & Humidity Module | I2C Gas Sensor 2.4-5.5V

TBS-06429SENS-00282
$56.95
A submersible liquid level sensor, acting as a precise strain gauge for water depth measurement in tanks.

Level Sensors

Submersible Level Sensor | 4-20mA Output | Water Depth

TBS-06417SENS-00273
$83.99
A 50A/100A Hall effect sensor module (ACS758) for linear analog AC/DC current measurement, 3.3V-5V.

Hall Effect Sensors

Effect Sensor Module | 50A 100A AC/DC Linear Current | Arduino ACS758 Chip

TBS-06428SENS-00281
$12.99
Ten precision resistive strain gauges, BF/BHF350-6AA 350 ohm, for pressure sensor load cells.

Strain Gauges

Strain Gauge | 350 Ohm BF350-6AA | For Load Cell Sensor (10pcs)

TBS-06416GAUG-00006
$27.95
BME280 3.3V sensor module for precise temperature and atmospheric pressure readings, featuring a humidity sensor.

Humidity Sensors

Humidity Sensor | 3.3V Breakout Board | Temp & Pressure Module

TBS-06415SENS-00272
$4.49

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Matching Hydraulic and Pneumatic Fittings to the System

Fittings fail at the interface, so start with thread standard and working pressure. Most equipment in our range uses BSP or NPT threads, and mixing the two strips seals. Check the rated bar or PSI of the circuit and buy fittings rated above the relief valve setting, not at it.

  • Confirm thread type and size from the component datasheet before ordering adapters.
  • For pneumatics, quick-release couplings save service time on lines opened often.
  • Use steel fittings for hydraulic pressure lines; brass suits low-pressure air and water.

Sizing Lifting Equipment With a Real Safety Margin

Winches, hoists and lifting stools are rated by working load limit. Size against the heaviest realistic load plus rigging weight, then step up one rating. A 12V or 24V recovery winch rated 3500 to 4500 lb covers most vehicle and trailer work; powered lifting platforms for tile and plastering trades list both load and lift height.

  • Never size a lift at 100 percent of the working load limit; keep at least a 25 percent margin.
  • Match winch voltage to the vehicle system that will drive it.
  • Check duty cycle: intermittent-rated gear overheats in continuous use.

Choosing Automation Components That Integrate Cleanly

Automation components pay off when they match the control voltage and signal type you already run. Proximity sensors, limit switches and relays in this department cover common 12V, 24V and mains-switched circuits, and IP67-rated switchgear survives washdown areas.

  • Standardize on one control voltage across a machine to simplify spares.
  • Pick IP67 or better for anything exposed to coolant, dust or outdoor duty.
  • Keep one spare of every sensor type in the machine; downtime costs more than the part.

Buying guide

Choosing Industrial & Machinery

What is the difference between BSP and NPT hydraulic fittings?
BSP threads seal on a 55-degree flank angle and usually a bonded washer or cone seat, while NPT threads are 60-degree tapered and seal on the thread itself with sealant. They are not interchangeable: an NPT male in a BSP port will bind and leak. Check the equipment datasheet and match the standard exactly.
How do I choose the right working load limit for lifting equipment?
Add the load weight and all rigging, then select equipment whose working load limit sits comfortably above that total, with at least a 25 percent margin. For repeated daily lifts, step up a rating class so the gear never works at its ceiling.
Do you stock replacement machinery parts for CNC and manufacturing equipment?
Yes. The Manufacturing & CNC section covers spares like spindles, couplings, linear components and controller modules, and the Industrial Electrical Components section covers switches, contactors and terminal hardware. If a listing does not show the spec you need, the product Q&A on each page is the fastest way to confirm fit.
Are your pneumatic fittings suitable for compressed air tools?
Yes. Standard quick-release couplings and push-in fittings in the range are rated for typical workshop compressor pressures. Check each listing for the rated bar and the tube diameter, and use thread sealant on tapered threads for a dry-air seal.
Can I get trade pricing on industrial machinery parts?
Yes. Every product shows standard pricing, and Pro members get tiered member pricing up to 25 percent off plus NET-30 terms for registered businesses. Volume needs beyond a listing are handled through the B2B contact on the site.