> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# MagnetoPot Linear Potentiometer - 50mm (Male Pins)

**Type:** Product page · **SKU:** SEN-27312 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-magnetopot-linear-potentiometer-50mm-contactless-motion-tracking.html ([markdown](https://core-electronics.com.au/sparkfun-magnetopot-linear-potentiometer-50mm-contactless-motion-tracking.html.md))

The MagnetoPot is simple, yet elegant in its ability to track motion in a contactless manner. A magnet on the inside of a cylinder, or a magnet on the...

## Pricing

- **Price:** $59.55 (inc GST) — $54.14 AUD, exc GST
- **Quantity discounts:** 5+ $52.51 (exc GST) · 25+ $51.43 (exc GST) · 100+ $49.26 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 17 and Aug 24.

## How to buy

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## Description

## Product Overview

The MagnetoPot is simple, yet elegant in its ability to track motion in a contactless manner. A magnet on the inside of a cylinder, or a magnet on the opposing side of a motion device will guide the built-in magnetics of the MagnetoPot for position location through a potentiometric output.

The MagnetoPot is a sealed potentiometer, in the membrane potentiometer tradition, yet it does not require a wiper/actuator to connect the collector and the resistor. Instead, the MagnetoPot is controlled by an outside magnet, which attracts the magnetic forces within the MagnetoPot to connect to the linear resistor and give linear potentiometer feedback.

The wiper inside the sealed pot is magnetic or ferromagnetic, and will only perform if connected with an exterior magnet.

As opposed to a magnetically-based Reed Switch, which gives simply “open” or “close” signals, the MagnetoPot gives the full linear travel of a hydraulic or pneumatic cylinder.

In liquid level applications, the MagnetoPot can attach to the outside of a liquid tank and give position of the magnet inside the float. No water ingress, no wearing of the part by environment, because the MagnetoPot is outside of the tank.

## Features & Specs

- Resistance - Standard: 10k Ohms (lengths >300mm = 20k Ohms)
- Resistance - Custom: 5k to 500k Ohms
- Resistance Tolerance: ±20%
- Effective Electrical Travel: 8 to 1200mm
- Resolution: Depends on the exterior magnet strength and distance to the MagnetoPot
- Power Rating: 0.50 Watt continuous, 1 Watt Peak
- Dielectric Value: No affect @ 500VAC for 1 minute
- Independant Linearity: ±5% (±1% available)
- Hysteresis: 3mm\*
- Life Cycle: >1 million
- Height: 3.50mm (0.138")
- Actuation Force: 0.09 to 0.11 lbs pull force at desired distance (pull force rating is for the exterior magnet using a test plate of cold rolled steel).

\*Please note that the hysteresis is directly affected by the drive magnet size, strength, and distance from the internal magnet.

## Documentation

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/MagnetoPot-Series-Datasheet-v2019a_32147affd0f.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/E/SEN-27312-1.jpg)