Mobile Signal Booster Kits · Model SL-900MB

SIGLIFT SL-900MB Mobile Signal Booster

900 / 1800 / 2100 MHz Band 8 / Band 3 / Band 1 Works with Airtel, Vi, BSNL Up to 3,000 sq.ft

Who is the SL-900MB for? A larger home, villa or small office of up to 3,000 sq.ft where Airtel, Vi or BSNL calls drop or 4G slows indoors. It amplifies 900 / 1800 / 2100 MHz (Band 8 / Band 3 / Band 1).

Covers upto 3000 Sq. Feet Area
Supports: 900 / 1800 / 2100 MHz Frequency
[Band 8 / Band 3 / Band 1]
Easy to Install, Plug and Play
24x7 Technical Support
Support Multiple Users and Devices
CE, RoHS and CCC Certified

WhatsApp Call Expert

Not sure this model fits your network? Use the Booster Finder or compare booster models.

1-Year Warranty
Free shipping in India
Cash on delivery
10-Day Returns

Download specification sheetSL-900MB · frequencies, gain, power & more · A4 PDF

Overview

The SIGLIFT SL-900MB Mobile Signal Booster is a 900 / 1800 / 2100 MHz mobile signal booster (Band 8 / Band 3 / Band 1) from SIGLIFT. It captures the existing signal outside your building with an outdoor antenna, amplifies it and rebroadcasts it indoors, fixing call drops, cracking voice and slow 4G data across up to 3,000 sq.ft. It suits Airtel, Vi, BSNL. Because operators use different bands in different telecom circles, our experts confirm compatibility for your SIM and location before dispatch.

Works on every major network: jio, airtel, vi and bsnl

SL-900MB specifications

Download PDF

Parameter	Specification
Model No.	SL-900MB
Frequency Uplink (MHz)	890-915 / 1710-1785 / 1920-1980
Frequency Downlink (MHz)	935-960 / 1805-1880 / 2110-2170
Gain	Uplink 60 ±3dBi, Downlink 75 ±3dBi
Export Power	21dBm ±3dBm
Power Supply	Input AC 110V-240V 50/60Hz, Output 12V 2A
Pass Band Ripple	≤3dBi
I/O Impedance	50Ω
Connector Type	SMA Female Connector
Noise Figure	≤4dBi
Transmission Delay	≤0.5µs
Ambient Temperature	-10°C ~ 60°C
Reliability	To The GB6993-86 Standard
Electromagnetic Compatibility	To The ETS300 694-4 Standard
Warranty	1 Year

SL-900MB — frequently asked questions

Which networks does the SL-900MB work with?

The SL-900MB amplifies 900 / 1800 / 2100 MHz (Band 8 / Band 3 / Band 1). With typical Indian band allocations that covers:

Jio: 1800 MHz (Band 3)
Airtel: 900 MHz (Band 8), 1800 MHz (Band 3), 2100 MHz (Band 1)
Vi: all of its usual bands — 900 MHz (Band 8), 1800 MHz (Band 3), 2100 MHz (Band 1)
BSNL: all of its usual bands — 900 MHz (Band 8), 2100 MHz (Band 1)

Bands in use vary by telecom circle and building, so send a screenshot of your phone’s network info on WhatsApp and we’ll confirm the SL-900MB suits your SIM before dispatch.

How much area does the SL-900MB cover?

Up to 3,000 sq.ft indoors when the signal outside is usable (at least one or two bars on the roof or terrace); thick walls, basements and a weak outdoor signal reduce it. Extra indoor antennas with a splitter extend coverage to more rooms. For a bigger space on the same bands, the SL-900-23DB covers up to 5,000 sq.ft.

What is the difference between the SL-900MB and the SL-900SB?

The SL-900MB covers up to 3,000 sq.ft and the SL-900SB up to 2,500 sq.ft. Pick the one whose bands match your operator and whose coverage fits your floor area — our experts can confirm in a few minutes.

What is a mobile signal booster and how does it work?

A mobile signal booster (also called a mobile network booster or repeater) has three parts: an outdoor antenna that captures the existing signal from the nearest tower, an amplifier that strengthens it, and an indoor antenna that rebroadcasts the stronger signal inside. It improves calls and 2G/3G/4G data wherever at least some usable signal is available outside the building.

Do you provide installation in your home or office?

Every kit is designed for easy do-it-yourself installation, and our technical team guides you by phone or WhatsApp. Professional installation is available in many cities — call or WhatsApp us to check availability for your location.

Will it work if there is no signal at all outside?

A booster amplifies existing signal; it cannot create signal from nothing. If you get at least one or two bars on the roof or terrace, a booster can bring strong indoor coverage. Our experts can check your location’s signal before you order.

What warranty and support do I get?

Siglift boosters come with a 1-year warranty, free shipping across India, cash on delivery, a 10-day return policy and 24x7 technical support.