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

Account Cart

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

Help Track order

Account Cart

Voltage Monitor Module, A30-U1 DC 0-99.9V Delay Relay Controller Board for Overvoltage Undervoltage Control Voltage Detection

Voltage Monitor Module, A30-U1 DC 0-99.9V Delay Relay Controller Board for Overvoltage Undervoltage Control Voltage Detection

Product ID: 568483884

Details

Brand
MiOYOOW
Color
black
Item dimensions L x W x H
3.07 x 2.09 x
Power Source
Battery
Style
Compact

⏳1-9 min customizable screen auto-off

⚡0-99.9V precise voltage range

🔄Dual relay trigger modes (ON H / ON L)

€ 52.46

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

Description

⚡ Stay ahead of power risks with smart voltage mastery!

FLEXIBLE RELAY MODES - Choose ON H for discharge or ON L for charging to perfectly match your battery system.
INSTANT VOLTAGE READOUT - Real-time voltage display activates immediately on power-up—no waiting, no guesswork.
USER FRIENDLY INTERFACE - Intuitive 3-button setup lets you customize parameters quickly without complex tools.
SMART DISPLAY MANAGEMENT - Auto screen-off timer up to 9 minutes saves power and extends module lifespan.
PRECISION VOLTAGE CONTROL - Set upper & lower voltage limits with 0.1V accuracy for ultimate device protection.

The MiOYOOW A30-U1 Voltage Monitor Module offers precise DC voltage monitoring from 0 to 99.9V with customizable upper and lower limits. Featuring a delay relay controller with dual trigger modes for charging or discharging applications, it ensures reliable overvoltage and undervoltage protection. Its smart display auto-off timer conserves energy, while an intuitive interface allows easy parameter setup. Compact and robust, it’s designed for professional-grade voltage detection and control.

Specifications

ASIN	B0CDGSG231
Best Sellers Rank	#337,828 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #275 in Voltage Testers
Brand Name	MiOYOOW
Color	black
Compatible Devices	Various devices with compatible voltage and current ratings
Customer Reviews	4.6 4.6 out of 5 stars (62)
Included Components	As shown in the packing list
Item Dimensions	3.07 x 2.09 x 1.18 inches
Manufacturer	MiOYOOW
Measurement Type	Voltmeter
Minimum Operating Voltage	6 volts_of_direct_current
Model	A30-U1
Part Number	439302
Power Source	Battery Powered
Style Name	Compact
UPC	760606718319
Upper Temperature Rating	85 °C

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

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months 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.

€ 52.46

Duties & taxes included

In stock

Sold byAmazon SlovakiaDelivered 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 Slovakia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Ayesha M.

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

5 days ago

View all Trustpilot reviews