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Solar Flood and Security Lights

Best Solar Motion Sensor Alarm for Barn (2026): 5 Alarms Compared

5 solar motion sensor alarms for barns compared on siren loudness, detection angle, work modes, IP code and warranty terms, with every figure taken from the listings.

Best Solar Motion Sensor Alarm for Barn (2026): 5 Alarms Compared
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A barn at night is dark, quiet and full of corners where movement goes unseen, and the best solar motion sensor alarm for barn use answers that with a loud siren, a flashing strobe and a solar panel that keeps the unit charged without wiring. This comparison covers the full picks and the more options below, scored on siren loudness, detection angle and distance, work modes, weather code and warranty terms. The leading pick pairs day and night modes with solar plus USB charging, a stated IP code and a warranty term stated in the listing.

SolarKitHQ earns a commission when you buy through links on this page, at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Affiliate disclosure.

Quick picks

  • ChunHee SL02 4-Pack
    Best Overall ChunHee SL02 4-Pack: 4 modes, solar plus USB charging, IP65 housing and a 1-year warranty stated Check price on Amazon
  • ChunHee SL16 4-Pack
    Best 4-Pack Recording ChunHee SL16 4-Pack: 130dB siren, recording and adjustable volume across 4 units Check price on Amazon
  • COTINSE K11S-Max
    Best Remote Control COTINSE K11S-Max: 30-second recording and a remote that works from 33 to 328 feet Check price on Amazon
  • COTINSE N911W
    Loudest Dual Speakers COTINSE N911W: two 130dB speakers and 13 rotating sounds with red and blue strobe Check price on Amazon
  • Qualirey 4-Pack Stake Alarm
    Best Ground Mount Qualirey 4-Pack Stake Alarm: stakes and screws included, with recording and 4 units in the box Check price on Amazon

The kits we chose

ChunHee SL02 4-Pack

ChunHee SL02 4-Pack

ChunHee9.6/10 Solar Score
i
The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 4-pack solar alarm with a 129dB siren, 6 LEDs, 4 work modes and solar plus USB charging.

Pros

  • 4 work modes, including flash-only modes for quiet nights
  • IP65 housing and sturdy ABS casing stated
  • Solar charging with USB as a backup for long rainy days
  • A 1 year warranty term is stated

Cons

  • Siren is 129dB, below the 130dB sirens in this group
  • No recording feature is stated
  • No remote control is stated
Detailed Review

The listing states a 129dB siren, 6 LED strobe lights, a 125° sensing angle that covers movement within 5-8 meter, and 4 work modes: 24 hours with flash and alarm, 24 hours with flash but without alarm, night with flash and alarm, and night with flash only. It states solar charging with USB as a backup, an IP65 housing in sturdy ABS casing, and a 1 year warranty. The listing states the siren can be heard 1000m away in an open area.

Who it's for: barn and farm owners who want 4 alarms with modes for day and night and a stated warranty term. Who should skip it: buyers who want a recording feature or a remote control, which this listing does not state.

Its Solar Score of 9.6/10 comes from performance 30/35, build 21/25, value 21/25, safety 7/10 and warranty 2/5: 81 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Pack4-pack
Siren129dB, 6 LEDs
Detection125°, 5-8 meter
Modes4 modes

Figures as published on the retailer listing, collected 5 November 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. IP65 housing and sturdy ABS casing stated, so safety scores 7 of 10. 1 year warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 2 of 5. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

ChunHee SL16 4-Pack

ChunHee SL16 4-Pack

ChunHee9.6/10 Solar Score
i
The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 4-pack solar alarm with a 130dB siren, recording, adjustable volume and 3 work modes.

Pros

  • 130dB siren, the joint loudest figure stated in this group
  • Recording plus a choice of dog barking and gunshot sounds
  • Adjustable volume for night use
  • IP65 housing in ABS for outdoor use

Cons

  • No warranty term is stated
  • No USB charging is stated
  • No remote control is stated
Detailed Review

The listing states a 130dB siren with a strobe light, a sensing angle of 110 degrees that covers movement within 5-8 meter, 3 work modes, recording with a choice of dog barking and gunshot sounds, and adjustable volume. It states a solar panel with an ABS housing and an IP65 code. The spec table lists NumberOfItems as 1 while the title and the color field say 4-pack, so trust the title for the pack count.

Who it's for: barn owners who want 4 alarms with a loud siren and recording for animal deterrence. Who should skip it: buyers who want a stated warranty term or USB charging as a backup.

Its Solar Score of 9.6/10 comes from performance 30/35, build 21/25, value 21/25, safety 7/10 and warranty 0/5: 79 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Pack4-pack
Siren130dB
Detection110, 5-8 meter
Size5.0 x 3.0 x 5.0 in

Figures as published on the retailer listing, collected 5 November 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. IP65 housing and ABS casing stated, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

COTINSE K11S-Max

COTINSE K11S-Max

COTINSE9.6/10 Solar Score
i
The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A solar alarm with a 120dB siren, 14 sounds, 30-second recording and a remote that works from 33 to 328 feet.

Pros

  • 30-second custom recording, the longest recording figure stated in this group
  • Remote control works from 33 to 328 feet
  • 14 preset sounds and 3 adjustable volume levels
  • IP65-rated casing with a stated range of -10°C to 50°C

Cons

  • No warranty term is stated
  • Siren is 120dB, the lowest figure stated in this group
Detailed Review

The listing states a 120dB siren, 6 red strobe LEDs, a PIR sensor with a 120° horizontal angle and a 16 to 26-foot detection distance, 14 preset sounds, 3 volume levels, a silent flash-only mode, 30-second custom recording and a remote that works from 33 to 328 feet. It states solar charging with a USB-C port and an IP65-rated casing for temperatures from -10°C to 50°C. The title calls it a 360° motion detector, but the bullets state a 120° horizontal angle, so trust the bullets for detection and read 360° as the strobe warning, not the sensor angle.

Who it's for: barn owners who want remote control and a long custom recording. Who should skip it: buyers who want the loudest siren here or a stated warranty term.

Its Solar Score of 9.6/10 comes from performance 29/35, build 21/25, value 20/25, safety 7/10 and warranty 0/5: 77 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Siren120dB, 6 red strobe LEDs
Detection120°, 16 to 26 ft
Recording30 seconds
Remote33 to 328 ft

Figures as published on the retailer listing, collected 5 November 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. IP65-rated casing stated, so safety scores 7 of 10. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

COTINSE N911W

COTINSE N911W

COTINSE9.4/10 Solar Score
i
The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A solar alarm with two 130dB speakers, 13 rotating sounds and red and blue strobe lights.

Pros

  • Two 130dB speakers for wider coverage than a single-speaker alarm
  • 13 sounds that rotate in a continuous loop
  • Red and blue LED strobe visible in daylight
  • 4 work modes, including light-only modes for quiet areas

Cons

  • No IP code is stated
  • No detection angle or distance is stated
  • No warranty term is stated
  • No recording feature is stated
Detailed Review

The listing states two 130dB speakers, 13 sounds including dog barking, gunshot, wolf howl, lion roar, eagle call and siren, played in a continuous loop, plus alternating red and blue LEDs and 4 work modes: 24-hour sound plus light, 24-hour light only, night-only sound plus light, and night-only light only. It states solar charging with no outlet or cables. The listing states no IP code, no detection angle or distance, no recording feature and no warranty term.

Who it's for: barn owners who want the loudest siren figure here with rotating sounds and a police-style strobe. Who should skip it: buyers who want a stated weather code or a stated detection distance.

Its Solar Score of 9.4/10 comes from performance 29/35, build 20/25, value 20/25, safety 0/10 and warranty 0/5: 69 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Siren130dB dual speakers
Sounds13 rotating sounds
StrobeRed and blue LED
Modes4 modes

Figures as published on the retailer listing, collected 5 November 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

Qualirey 4-Pack Stake Alarm

Qualirey 4-Pack Stake Alarm

Qualirey9.4/10 Solar Score
i
The Solar Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 4-pack solar alarm with stakes for ground mounting, a 129dB siren, recording and USB charging.

Pros

  • Stakes and screws included for ground or wall mounting
  • Recording with a 15-second maximum for a single recording
  • 4 alarms in the box, each with a stake, USB cable and remote
  • Solar charging with USB as a backup during rainy days

Cons

  • No IP code is stated
  • No detection angle or distance is stated
  • No warranty term is stated
  • Remotes work only with alarms from the same package
Detailed Review

The listing states a 129dB siren with dog barking and gunshot sounds, recording with a 15-second maximum for a single recording, adjustable volume, and 3 modes: 24 hour sound and blink, night alarm and flashing or recording, and a night cycle alarm every 5 minutes. It states solar charging with USB as a backup, stakes for ground mounting and screws for wall or fence mounting, and 4 alarms in the box, each with a stake, a USB cable, a remote and screws. The listing states no IP code, no detection angle or distance and no warranty term.

Who it's for: barn and farm owners who want 4 alarms they can stake into the ground around a yard or fence line. Who should skip it: buyers who want a stated weather code or a stated detection distance.

Its Solar Score of 9.4/10 comes from performance 28/35, build 20/25, value 20/25, safety 0/10 and warranty 0/5: 68 of 100 points, placed on our 9.2 to 9.8 scale.

Key Specifications
Pack4 pieces with stakes
Siren129dB
Modes3 modes
Recording15 seconds max

Figures as published on the retailer listing, collected 5 November 2026. Performance figures are manufacturer rated.

Safety and Warranty

What this listing states. This product does not plug in or run on a battery, so safety is not part of its score. No warranty term, so warranty scores zero. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

As an Amazon Associate I earn from qualifying purchases.

More picks to compare

  • ChunHee SL22GN 2-PackChunHee SL22GN 2-PackA 2-pack with recording, adjustable volume and 4 work modes for barns.Check on Amazon
  • EverNary CT80REverNary CT80RIP65 housing, remote control and 4 work modes for farm and barn use.Check on Amazon
  • Comboss wl0286Comboss wl0286110dB siren with 6 LEDs and 4 modes for farm and villa use.Check on Amazon
  • HULPPRE Solar AlarmHULPPRE Solar Alarm13 sounds with recording and 360° detection for farm, pond and orchard.Check on Amazon
  • NULETO D102NULETO D102130dB siren, IP66 housing and 20-second recording for gates and sheds.Check on Amazon

Numbers side by side

Alarm Solar Score Siren Detection IP code Warranty Amazon
ChunHee SL02 4-Pack 9.6/10 129dB 125°, 5-8 meter IP65 1 year View on Amazon
ChunHee SL16 4-Pack 9.6/10 130dB 110, 5-8 meter IP65 Not stated View on Amazon
COTINSE K11S-Max 9.6/10 120dB 120°, 16 to 26 ft IP65 Not stated View on Amazon
COTINSE N911W 9.4/10 130dB dual Not stated Not stated Not stated View on Amazon
Qualirey 4-Pack Stake Alarm 9.4/10 129dB Not stated Not stated Not stated View on Amazon

These specs are rated by the maker and quoted from each listing on 5 November 2026.

Where the points went

The Solar Score weighs performance, build, value, safety and warranty. For a motion sensor alarm, safety means a stated IP code and the siren and strobe features the listing actually states; an alarm that states no IP code earns nothing on that line. 1 of the 5 alarms states a warranty term, and 3 of the 5 state an IP65 code. How we pick explains the weights.

Product Solar Score Perf. /35 Build /25 Value /25 Safety /10 Warranty /5
ChunHee SL02 4-Pack 9.6 30 21 21 7 2
ChunHee SL16 4-Pack 9.6 30 21 21 7 0
COTINSE K11S-Max 9.6 29 21 20 7 0
COTINSE N911W 9.4 29 20 20 0 0
Qualirey 4-Pack Stake Alarm 9.4 28 20 20 0 0

Every total is translated into a figure between 9.2 and 9.8 with a linear formula; ranking by points and ranking by score always agree.

How to choose the best solar motion sensor alarm for barn use

Match the detection angle to the doorway

The sensing angle sets how wide a doorway or fence line a unit can watch. The ChunHee SL02 states 125°, the COTINSE K11S-Max states 120° and the ChunHee SL16 states 110, so the SL02 watches the widest arc of the 3 alarms that state an angle. Distance matters as well: the ChunHee alarms state 5-8 meter, while the K11S-Max states 16 to 26 ft. Hang the unit to face the approach path, not the wall, so movement crosses the sensor arc.

Siren loudness and sound choices

Loudness runs from 120dB on the K11S-Max to 130dB on the SL16 and the N911W, with the SL02 and the Qualirey alarm at 129dB. Sound choice matters as much as loudness: the N911W rotates through 13 sounds, the K11S-Max offers 14 sounds, and the SL16 and the Qualirey alarm record a custom sound. For barns near houses, the adjustable volume on the SL16 and the Qualirey alarm and the silent flash-only modes on the SL02, the N911W and the K11S-Max keep night alerts from carrying further than needed.

Alarm Siren Sounds
ChunHee SL02 4-Pack 129dB Siren, 6 LEDs
ChunHee SL16 4-Pack 130dB Dog barking, gunshot, recording
COTINSE K11S-Max 120dB 14 sounds, 30-second recording
COTINSE N911W 130dB dual 13 rotating sounds
Qualirey 4-Pack Stake Alarm 129dB Dog barking, gunshot, recording

Modes, charging and weather code

Every alarm here charges by solar power, and the SL02 and the Qualirey alarm add USB charging as a backup for rainy days, while the K11S-Max adds a USB-C port. Modes run from 3 on the SL16, the K11S-Max and the Qualirey alarm to 4 on the SL02 and the N911W, with night-only and flash-only settings for quiet sites. 3 of the 5 alarms state an IP65 code; the N911W and the Qualirey alarm state no IP code, so check the housing claim on those listings before mounting in open weather. See the best solar powered motion sensor alarm comparison for a wider set of alarms, and the solar motion sensor alarm vs solar security camera guide if a camera fits the barn better.

Mounting and placement

Hang the alarm where the panel gets sun through the day, since every listing here relies on solar charging and warns to mount in sunlight. The Qualirey alarm ships with stakes for ground mounting and screws for a wall or fence, while the other listings describe hanging the unit. The K11S-Max remote works from 33 to 328 feet, so mode changes do not need a ladder. For the barn itself, see the best solar security light for barn guide for matching lights.

Sizing Notes

  • Match the sensing angle to the doorway or fence line: 125° on the SL02, 110 on the SL16 and 120° on the K11S-Max.
  • Check the detection distance the listing states: 5-8 meter on the ChunHee alarms and 16 to 26 ft on the K11S-Max.
  • Hang the alarm where the panel gets sun: every listing here charges by solar, and the SL02 and the Qualirey alarm add USB charging as a backup.
  • Match the siren to the site: 130dB on the SL16 and the N911W, 129dB on the SL02 and the Qualirey alarm, and 120dB on the K11S-Max.

FAQ: power away from the grid

Which alarm here states the loudest siren?

The ChunHee SL16 and the COTINSE N911W, both at 130dB. The SL02 and the Qualirey alarm state 129dB, and the K11S-Max states 120dB.

Which alarms here state an IP code?

The SL02, the SL16 and the K11S-Max all state IP65. The N911W and the Qualirey alarm state no IP code.

Which alarm here states a warranty term?

Only the ChunHee SL02, with a 1 year warranty stated. The other 4 alarms state no warranty term.

Can these alarms record a custom sound?

The SL16, the K11S-Max and the Qualirey alarm state recording. The K11S-Max allows a 30-second recording, and the Qualirey alarm allows 15 seconds for a single recording.

What detection distance do the listings state?

The ChunHee alarms state 5-8 meter, and the K11S-Max states 16 to 26 ft. The N911W and the Qualirey alarm state no detection distance.

ChunHee SL02 4-Pack
Still deciding? Our top pickChunHee SL02 4-Pack
Check price on Amazon

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