# Grow Moisture Sensors (pack of 3)

**Type:** Product page · **SKU:** PIM520 · **Brand:** [Pimoroni](https://core-electronics.com.au/brands/pimoroni-australia) · **GTIN:** 769894016336
**Page:** https://core-electronics.com.au/grow-moisture-sensors-pack-of-3-1.html ([markdown](https://core-electronics.com.au/grow-moisture-sensors-pack-of-3-1.html.md))

A trio of Grow soil moisture sensors, for use with Grow HAT Mini or other devices.

## Pricing

- **Price:** $25.60 (inc GST) — $23.27 AUD, exc GST
- **Quantity discounts:** 10+ $22.35 (exc GST) · 25+ $21.65 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Sep 01 and Sep 07.

## Description

These **capacitive moisture sensors** work using Pulse-Frequency Modulation (there's more info on that in our [Grow tutorial](https://learn.pimoroni.com/tutorial/hel/assembling-grow)). They're a lot less vulnerable to corrosion over time than old school resistive sensors, as there are no exposed electrodes. There's a handy indicator line to show you how far they can be pushed into the soil, and they even have a little area so you can label them with plant names (we think 'Pete' is a great plant name).

It's possible to use Grow moisture sensors on their own with non-Raspberry Pi devices (like Arduino), as long as they're capable of monitoring pulses on an IO pin in the range of ~2Hz up to ~30Hz accurately.

**Moisture sensor specifications:**- Capacitive moisture sensors with [Pulse-Frequency Modulation](https://en.wikipedia.org/wiki/Pulse-frequency_modulation) output.
- Male JST SH 3P connectors (if you need compatible cables, we sell them separately [here](https://core-electronics.com.au/jst-sh-3-pin-connector-for-grow-moisture-sensor-pack-of-3-1.html))
- [Pinout](https://core-electronics.com.au/attachments/localcontent/moisturesensorpinout_44612e62196.png)
- Dimensions: 99mm x 10mm x 5mm (including connector)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/P/I/PIM520-1.jpg)