> **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

# Gravity: Analog Water Pressure Sensor (1MPa)

**Type:** Product page · **SKU:** SEN0257 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-analog-water-pressure-sensor.html ([markdown](https://core-electronics.com.au/gravity-analog-water-pressure-sensor.html.md))

This is a water pressure sensor adopts DFRobot Gravity 3-pin interface. It supports standard 5V voltage input and 0.5~4.5V linear voltage output. It is compatible...

> ⚠ Measurement range is 0 -> 1MPa despite sticker indicating 1.6MPa

## Pricing

- **Price:** $34.75 (inc GST) — $31.59 AUD, exc GST
- **Quantity discounts:** 6+ $30.01 (exc GST) · 12+ $28.75 (exc GST)

## Availability & dispatch

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

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=SEN0257:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/SEN0257:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This is a water pressure sensor that adopts the DFRobot Gravity 3-pin interface. It supports standard 5V voltage input and 0.5~4.5V linear voltage output. It is compatible with multiple Arduino controllers. Use with a [DFRobot Gravity IO Expansion Shield](https://core-electronics.com.au/io-expansion-shield-for-arduino-v7.html), the water pressure sensor can be plugged into an Arduino board, wiring-free. Put it with [Solenoid Valve](https://core-electronics.com.au/12v-solenoid-valve-1-2.html), [Water Turbine Generator](https://core-electronics.com.au/water-turbine-generator-5vdc.html) and other sensors, you can build a smart water control system.

As we sometimes get asked - we have no info suggesting this will work in air-only setups. The manufacturer indicates water/liquid use.

Briefly speaking, this water pressure sensor is a stethoscope for a water pipe. It will help you to diagnose whether there is water, and how strong the water pressure is.

### Applications

- Support water pressure detection of living environmental water systems, such as houses, gardens and farms.
- Support water pressure detection of the outdoor environment, such as rivers, lakes and sea.
- Support water pressure detection of tanks;
- Support liquid level detection in special situation detection in specified liquid;
 
### Specifications

- Medium: liquid/gas without corrosion
- Wiring: Gravity-3Pin (Signal-VCC-GND)
- Pressure Measurement Range: 0~1 Mpa
- Input Voltage: +5 VDC
- Output Voltage: 0.5~4.5 V
- Measurement Accuracy: ~0.5% 55°C)
- Threadably: G1/4
- Adapter: G1/2 to G1/4
- Waterproof Level: IP68
- Operating Temperature: -20~85°C
- Response Time: <2.0 ms
- Quiescent Current: 2.8 mA
- Normal Operating Pressure: ≤2.0 Mpa
- Damaged Pressure: ≥3.0 Mpa
- Service Life: ≥10’000’000 times (10 million)
- Cable Length: 1 m
 
### Documents

- [Product wiki](https://www.dfrobot.com/wiki/index.php/Gravity:_Water_Pressure_Sensor_SKU:_SEN0257)
 
### Shipping Contents

- Gravity: Analog Water Pressure Sensor x1
- G1/2 to G1/4 Connector (mounted) x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/s/e/sen0257-001-900x600.jpg)