Non-contact Flexible Liquid Level Sensor

SKU: SEN0508 Brand: DFRobot

This non-contact capacitive liquid level sensor uses flexible substrate with light and thin design. With temperature-resistant and waterproof 3M adhesive...

$17.10 AUD, inc GST

$15.55 AUD, exc GST

Available with a lead time
Expect dispatch between May 20 and May 27

Quantity Discounts:

10-25 $15.08 (exc GST)
25+ $14.76 (exc GST)

This non-contact capacitive liquid level sensor uses a flexible substrate with a light and thin design. With temperature-resistant and waterproof 3M adhesive tape on the back, it can be easily attached to surfaces of any kind of non-conductive container whose thickness is less than 5m.

The sensor outputs digital high/low level (low when liquid detected) and adopts 3-pin DuPont connector, which can be widely used in water tank detection, beverage machine, water pipe level detection, scientific experiment test tube level detection and other scenarios.

Working Principle

The intelligent liquid level sensor uses the sensing capacitance of water to detect the presence of liquid. When there is no liquid approaching the sensor, the sensor has a certain static capacitance due to the distributed capacitance. When the liquid level slowly rises close to the inductor, the parasitic capacitance of the liquid will be coupled to the static capacitor, causing the final capacitance of the inductor to become larger. The changed capacitance signal is then input to the control IC for signal conversion, which will change. The capacitance is converted into the amount of change of an electrical signal, and then a certain algorithm detects and judges the degree of the change. When the amount of change exceeds a certain threshold, the liquid level is considered to reach the sensing point.

Features

Light and thin design
Can be attached to surfaces of non-conductive containers

Specification

Working Voltage: 2.5~5.5VDC
Working Current: 5V290uA 3V235uA
Output: low (liquid detected), high level(no liquid detected)
Detection Distance: 5mm
Hysteresis: ±0.25%FS
Protection Level: IP62
Working Temperature: -30~85°C
Weight: 2g

Documents

Product wiki

Parts List

Flexible Non-contact Liquid Level Sensor x1

Product Comments

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Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$6+ for Standard Post (typically 6+ business days, tracked)
$10+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$11+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

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