# Gravity: Throw-in Type Liquid Level Transmitter

**Type:** Product page · **SKU:** KIT0139 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-throw-in-type-liquid-level-transmitter.html ([markdown](https://core-electronics.com.au/gravity-throw-in-type-liquid-level-transmitter.html.md))

This throw-in type liquid level transmitter adopts high-performance pressure sensing chip, with advanced circuit processing and temperature compensation technology...

## Pricing

- **Price:** $87.50 (inc GST) — $79.55 AUD, exc GST
- **Quantity discounts:** 6+ $75.56 (exc GST) · 12+ $72.38 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 5 today, and up to 700 more in 8–12 days.

## Description

This "throw-in" type liquid sensor adopts a high-performance pressure sensor, complete with temperature compensation. You could use this pressure data to determine the depth of liquid above the sensor, and therefore the volume of liquid in a container

The shell of the sensor is made of stainless steel, a naturally anti-corrosive and easy-to-clean material. It can be directly placed in liquids like water, oil or even something thicker!

Since this sensor outputs a fairly obscure current output (yep, not voltage), DFRobot have bundled in their [analog current to voltage converter board](https://core-electronics.com.au/gravity-analog-current-to-voltage-converter-for-4-20ma-application.html) to make this sensor usable with Arduinos or similar microcontrollers

### Specifications

- Cable length: 5m
- Measurement range: 0-5m
- Accuracy: 0.5%
- Output signal: 4-20mA
- Operating voltage: 12-36V
- Operating temperature: -20°C - 70°C
- Material: 316L stainless steel
- Ingress protection: IP68
 
### Usage Notes:

- Make sure you connect the power supply exactly as shown in the diagram on the Product Wiki
- The workings of this sensor are fairly fragile. Make sure you don't disassemble or drop the device, or puncture its diaphragm with any sharp objects
- This sensor requires a pre-heating period of about 30 minutes with the power supply connected before accurate readings can be made
 
### Documents and Resources

- [Product Wiki](https://wiki.dfrobot.com/Throw-in_Type_Liquid_Level_Transmitter_SKU_KIT0139)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/k/i/kit0139-family.jpg)