If the output signal is a pulse, what is the pulse rate per liter and duration per pulse?

The current image shows an "F" number of 7, which means 7Hz per liter/min, so 7 pulses per second indicates a flow rate of 1 liter/minute, hence 7 * 60 seconds/minute = 420 pulses per liter (per minute). I have no idea what the duration would be.

Does it prevent back flow or what happens if water does try to go in wrong direction?

It does not have any backflow prevention. It is a little water wheel inside a pipe which has magnets in the vanes of the water wheel. The unit simply counts magnetic pulses as the wheel is moved by the water flow. It would probably register water flow either way but would only be accurate in the forward flow direction. Any domestic water system should have backflow preventers in place to keep drinking water contamination from occuring.

Are the threads npt, bspt or bspp? please understand this is basic info should always be provided without having to specifically ask. thanks.

Hello, thank you for your inquiry. It's BSPT.

If the flow rate is less than 1L/minute, will it not not show any pulses? I'm interested in using this to detect leaks and 1L/min is a lot of water.

I don't know about 1L/min, but I have tried pumping liquid through one using a dosing pump and nothing registered. The water wheel will have some resistance, so a very slow flow might not register.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

1/2" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-30L/min (Pack of 2）

1/2" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-30L/min (Pack of 2）

Product ID: 723152885

⚡DC 5-24V wide voltage

💧1-30L/min flow range

🔩G1/4 inch male thread fit

€ 105.44

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Description

💧 Flow with confidence, measure with precision!

DUAL PACK VALUE - Two flowmeters included to double your efficiency and backup readiness
FOOD GRADE SAFETY - Crafted from ROHS-certified, food-safe plastic for pure, contaminant-free flow
PRECISION FLOW CONTROL - Accurate ±2% measurement for flawless fluid management
VERSATILE COMPATIBILITY - Ideal for coffee machines, water purifiers, beverage dispensers, and smart campus devices
PLUG PLAY INSTALLATION - Lightweight design with secure sealing ring prevents leaks and speeds setup

This 1/2" Water Flow Sensor features a hall effect switch with a 1-30L/min flow range, operating at DC 5-24V and up to 1.75Mpa pressure. Made from food-grade, ROHS-compliant plastic, it ensures safe, leak-proof fluid measurement. Perfect for professional-grade water heaters, coffee machines, and smart beverage systems, it comes as a convenient pack of two for enhanced value and reliability.

Specifications

ASIN	B07RG4KXWJ
ASIN	B07RG4KXWJ
Batteries Included?	No
Batteries Required?	No
Customer Reviews	4.0 4.0 out of 5 stars (19)
Customer reviews	4.0 4.0 out of 5 stars (19)
Date First Available	26 December 2024
Date First Available	26 December 2024
Item Weight	100 g
Item model number	GR-201P2
Item model number	GR-201P2
Manufacturer	GREDIA
Manufacturer	GREDIA
Material	Plastic
Package Dimensions	18.11 x 11.71 x 3.51 cm; 100 g
Package Dimensions	18.11 x 11.71 x 3.51 cm; 100 g
Part number	GR-201P2
Size	G1/2" male thread 2
Style	G1/2" male thread

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

€ 105.44

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Austria.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

View all Trustpilot reviews