MitchElectronics
Continuity Probe
£7.99
20 items in stock
Build your own DIY continuity probe that not only checks for continuity, but does so without damaging sensitive electronic circuits. RoHS compliant, REACH compliant, and perfect for beginners.
- Product Code
- CONTPROBE
- Manufacturer
- MitchElectronics
- Manufacturer Part Number
- CONTPROBE
- Category
- Blue Kits
- Country of Origin
- United Kingdom
RoHS: YesREACH: YesCE: YesUKCA: Yes
Overview
Product Description
The Continuity Probe is a DIY tool used to test the electrical continuity of a wire between two points (hence the name Continuity Probe). If two points have electrical continuity, the Continuity Probe beeps its on-board buzzer, and this helps to quickly determine continuity without needing to read a display. However, what makes this kit special is that it uses a tiny amount of external current with diode protection to prevent damaging external circuits (simply using a battery and a buzzer on its own is a quick way to damage sensitive devices). The low external voltage is too small to damage anything, and the series limiting resistors prevent damage during a short circuit.
To make probing easier, this kit uses pogo-pins which are spring-loaded contacts. Thus, a small amount of pushing force can be provided to ensure proper contact while reducing the risk of mechanical damage to either the probe or the circuit being tested.
To make probing easier, this kit uses pogo-pins which are spring-loaded contacts. Thus, a small amount of pushing force can be provided to ensure proper contact while reducing the risk of mechanical damage to either the probe or the circuit being tested.
Resources
Instructions & Documentation
Technical
Product Specifications
- Assembly
- Kit form
- Prebuilt
No
- Battery Type
- 9V PP3
- PCB Dimensions
- 96mm x 22mm
- Mounting Holes
Yes
- Battery Powered
Yes
- Component Count
- 21
- Battery Included
No
- Operating Voltage
- 5V to 16V
- Operating Frequency
- N/A
- Mounting Hole Details
- 4 x M4 (68mm x 14mm)
In the box
Included With This Product
| Name | Quantity | Reference |
|---|---|---|
| 8 DIP Socket | 1 | U1 |
| 14 DIP Socket | 1 | U2 |
| LM358 | 1 | U1 |
| 4093 | 1 | U2 |
| 100nF Capacitor | 3 | C1, C2, C4 |
| 10µF Capacitor | 1 | C3 |
| 1KΩ Resistor | 2 | R2, R5 |
| 5.6KΩ Resistor | 1 | R7 |
| 10KΩ Resistor | 4 | R1, R3, R4, R6 |
| 1N4148 Diode | 2 | D1, D2 |
| Buzzer | 1 | BZ1 |
| Switch | 1 | SW1 |
| Pogo Pin | 2 | PROBE 1, PROBE 2 |
| PP3 Connector | 1 | BT1 |
| Continuity Probe PCB | 1 | — |
More information
Applications
- As the name suggests, the Continuity Probe is ideal for testing the continuity of electrical circuits, and the small, portable design of the Continuity Probe makes it ideal as a hand tool. The four mounting holes also enable makers to design their own enclosure for the probe, thus making it easier to use. At the same time, the Continuity Probe has been designed to demonstrate important circuit theories such as forward voltage drops of diodes, operational amplifiers in comparator mode, and how gated oscillators can be made using logic gates. Overall, this kit is excellent for those in the educational field looking to teach students how to design and build electronic circuits.
- Education and training – Useful for teaching continuity testing, transistor switching and electrical resistance, while providing practical experience with through-hole soldering, component identification and PCB assembly.
- Project integration – Suitable for projects such as Cable and Harness Tester, PCB Track Checker, Switch and Contact Tester, and other designs where the following function is useful: Portable continuity tester for checking wires, PCB tracks, switches and low-resistance electrical connections
More information
Notes
- Electrical specifications are nominal and may vary with component tolerances, supply voltage, load and operating conditions.
- The product is supplied in kit form and requires soldering and assembly before use.
- Check component values and observe the polarity or orientation of ICs, diodes, LEDs, transistors and electrolytic capacitors before applying power.
- A 9V PP3 battery is not included.