Alfa Network

ALFA Network ARS-915PR 2 dBi Helium Miner hotspot replacement antenna with 90° elbow for RAK Bobcat SenseCAP M1

$11.97 Sold out

Pickup currently unavailable at 2251 NW 41st Street

ALFA Network ARS-915PR in an indoor omni-directional RP-SMA male 915 MHz dipole antenna with 2 dBi gain. The antenna is 7.7 inches tall and has a 90 degree elbow. Suitable applications are as a factory replacement antenna for Helium miners and other IoT hardware. This antenna can be paired with this compatible magnet base

Get the right connection:

RP-SMA Male (this model): inside threading, center hole
SMA Male (other model ARS-915P): inside threading, center pin

SMA is more commonly used in 915 Mhz radios such as LILYGO Meshtastic radios, while RP-SMA is more common in WiFi. However both connection types can be used in either technology, so be sure to check your connections.

This antenna is compatible with the RAK V2, Bobcat 300, Nebra Indoor, SenseCAP M1, Kerlink, Linxdot,, Helium Hotspot, Kerlink, FreedomFi & LongAP. (915 MHz USA and Australia versions only).

Inquire about bulk purchases. Because our items come with free US shipping, this has been factored in the single-unit price. Great discounts available for this item on bulk purchases due to combined shipping savings. Click the Request Quote button by the cart button.

Beware cautious of gain inflation- some places arbitrarily inflate antenna gain numbers to appear better than competing products. Because gain cannot be easily measured by the end-users, we have seen similar antennas marketed as numbers like 18 dBi to 30 dBi that are not even 20 inches tall. Why buy a 5 dBi when you can get a similar looking "18 dBi" for the same price, right? Rokland has been making antennas for over 14 years for WiFi, 4G, and other applications. Our 915 MHz antenna are listed with actual specifications. You also do not want extremely high gain as your path will be very narrow and miss other hotspots.

I see similar looking antennas online that say for 600 MHz to 2700 MHz, is a wider frequency spectrum better? 

Antennas with a focused spectrum will have better performance on that band segment vs antennas with very wide spectrum. We would not recommend using antennas that are also WiFi 2.4 GHz compatible with your mining equipment. This antenna has a frequency range of just 900-930 MHz to give you maximum performance.

Specifications :

Part/Model #: ARS-915PR
Country of OriginTaiwan
Alfa Network Inc.

Frequency range : 900-960 MHz
Gain: 2 dBi
VSWR≤ 2.0:1
Polarization: Vertical;
Directivity: Omni-Directional;
Material: ABS,Copper

Antenna connector: RP-SMA male; Impedance: 50 OHM
Antenna diameter: 0.51 inches
Height: 7.7 inches
Temperature: -40 °C to 85 °C

Recommended Use

Use a factory replacement antenna for many popular Helium miners and IoT devices that have an RP-SMA female connector on them.

Compatible with:

Bobcat 300
Nebra Indoor/Outdoor
SenseCAP M1
Helium Hotspot


Warranty & Support:
Complimentary Telephone and Email/Live Chat Support (Click Here)

Sales tax is required in many states and will be added at checkout if applicable to your delivery state. Tax exempt forms can be sent to our support department.

Return Policy: 30 Day Returns: Because range can vary greatly based on your environment, if you are not sure a particular product will meet your range needs please contact us before buying. Orders with free shipping selected will incur a 10% restocking fee to help us cover the original shipping cost, unless the item is defective or different from the advertisement. Any expedited shipping charges paid, including return shipping, are never refundable. If you opt for an exchange, we will pay to ship the replacement to you. Items must be returned the way they were received, with all pieces, documentation, and retail packaging (if applicable) included. For bulk purchases, see our bulk purchase return policy here.

Shipping & Returns
FREE Standard shipping on all items shipped in the USA! 
We are in Florida and ship to: USA, Australia, Austria, Canada, France, Germany, Israel, Netherlands, and the United Kingdom. Local pickup available in Gainesville, FL

Expedited shipping orders placed before 3PM EST weekdays will ship that day. Standard shipping orders ship within 1 business day.

Sales tax: shipments shipped to states in which we are registered to collect tax will have appropriate tax added at checkout. Tax exempt forms can be sent to our support staff who can activate exemption status. 

Lost packages and insurance

International Shipping:

Shipping options are visible in cart by using the shipping estimator. Transit times posted are estimates. International packages are subject to customs holds and duty payment may be required by your government on delivery. The cost of duty  is not reimbursable. Internatonal shipping charges are not refundable in the event of a return.


See item description for product specific return policies, and return policies vary by item.

Bulk/High Value Order Returns

Due to the labor required to package and ship bulk orders, as well as cost and stock issues involved in replenishing items, bulk orders of 5 pieces or more are not returnable unless the equipment is defective or mis-advertised, or a return period is prenegotiated. For non-defective returns over $500, a restocking fee may be deducted from the refund to cover bank or card processing fees.


Items on backorder or preorder will ship as estimated on the item page. You can cancel an order any time up until shipment. Orders with expedited shipping will arrive in the advertised time after the order ships, not after the order is placed.


If you want to cancel an order, please email or call us at (352) 372-9902. If your item has not been shipped, we will cancel the order and provide a full refund.

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