Is this unit 2G / 4G switchable

yes you can switch via dipswitch on board

does it come with GSM antenna

Yes it comes with a half metre antenna cable

Is the signal from attached device positive or negative to input connection

inputs 1 - 3 are negative input 4 is negative or positive

Is it app controlled.

no there is no app, it is simply call and text only

Gsm 4g Auto Dialler | Desertcart UK

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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£194.44

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Sold byAmazon UKDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📲 Stay connected, stay secure—anytime, anywhere!

RUGGED RELIABLE - IP65-rated enclosure protects against dust and water, perfect for indoor/outdoor use.
SMART REMOTE CONTROL - Send commands via SMS to reactivate or disable devices instantly from your phone.
ENERGY EFFICIENT COMPACT - Low standby power consumption in a sleek, space-saving design for discreet installation.
UNIVERSAL ALARM COMPATIBILITY - Works effortlessly with all alarm systems—just connect and stay informed.
GLOBAL CONNECTIVITY ZERO HASSLE - Quadband GSM tech ensures seamless alerts worldwide, no matter where you are.

The GSM 4G Auto Dialler is a versatile security alert system that uses quadband GSM technology to send instant SMS or phone call notifications when alarms are triggered. Compatible with all alarm systems, it allows remote control via text commands and features a durable IP65-rated enclosure for reliable operation in diverse environments. Powered by 9-24V DC with low standby current, it offers a compact, energy-efficient solution for real-time monitoring of homes, businesses, and critical infrastructure.

Specifications

ASIN	B07649X7ST
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	262,565 in DIY & Tools ( See Top 100 in DIY & Tools ) 524 in Home Alarm Systems
Customer Reviews	4.7 4.7 out of 5 stars (2)
Date First Available	2 Oct. 2017
Item Package Quantity	1
Item Weight	600 g
Item model number	3GAD-1A
Manufacturer	GSM Activate
Part Number	3GAD-1A
Power Source	Battery Powered

Reviews

C**R

Easy to set up

Delivery prompt and item well packaged as usual.Used several of this brand before and always found them easy to set up and reliable.

18.10.2025

G**K

Quality Product

Works well, easy to install..

5.04.2019

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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.

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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.

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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.

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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

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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

5 days ago

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