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Rectangular solar-powered motion alarm with red LED lights and wall-mount bracket

Emerson N91N 130dB Solar Smart Sensor

SKU CH-350G-QH9P6 MPN N91N

Solar-powered motion alarm deters wildlife with 130 dB barking, gunshot or custom sounds, IP55 weather resistance and three operating modes

  • Connection protocolWireless
  • DetailsBatteries, OUDAER, N91N, 3.3 L x 5.5 W x 3.4 H inches, 3.7 V
  • Key featuresMotion, remote, Wall Mount, 130 decibels, Batteries
  • Product dimensions14.33 in W × 12.83 in H × 9.06 in D
  • In the boxBatteries
  • 130 dB siren with flashing LEDs deters large wildlife
  • Adjustable volume and custom 20-second recordings personalise alerts
  • Three operating modes cover day, night or timed cycles
  • Solar panel recharges 3.7 V 1200 mAh battery in 10 hours
  • IP55-rated housing withstands rain, dust and temperature swings

Solar-powered motion alarm

The Emerson N91N is a wireless outdoor sensor that combines a 130-decibel siren with flashing red LEDs to deter animals and intruders. It runs on a rechargeable lithium-ion battery replenished by an integrated solar panel. Users can select from three volume levels and three operating modes, including 24-hour and night-only settings. A built-in microphone allows custom voice recordings up to 20 seconds long.

Adjustable deterrent for gardens and farms

This unit suits property owners who need a standalone, solar-charged alarm to protect yards, orchards, ponds or livestock areas from deer, raccoons, bears and similar wildlife. The custom recording feature helps tailor warnings to specific threats. Buyers who require a sensor that integrates with a smart-home hub or sends phone notifications should look elsewhere, as the device operates independently via remote control only.

130-decibel output with solar charging

The defining specification is the 130-decibel maximum sound pressure level paired with a 3.7-volt 1200-mAh lithium battery that delivers over 12 hours of continuous operation per charge. The solar panel restores a full charge in roughly 10 hours of sunlight, enabling off-grid deployment without external wiring. The IP55-rated enclosure withstands rain and dust for year-round outdoor mounting.

How it compares

Measured against everything we stock in Alarm Kits & Motion Sensors, at today’s prices. Recalculated every night.

Price $41.99
Pricier than about 68% of the 180 comparable items (median $30.99).

Specifications

Product
Brand nameEmerson
Model nameN91N
Connectivity
Connection protocolWireless
Size & build
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
In the box
In the boxBatteries

Questions about this item

How do I confirm the N91N is operating correctly after mounting it?

Trigger the motion sensor and verify the red LED lights flash while the speaker emits the selected dog barking or gunshot sound at the chosen volume level.

What components are included and what must I supply separately?

The package includes the sensor unit, a rechargeable 3.7 V 1200 mAh lithium-ion battery and mounting hardware; no extra items are required for solar operation.

Which mode should I select — 24-hour, night-only or night-cycle?

Choose 24-hour mode for constant monitoring, night-only mode for dusk-to-dawn alerts, or night-cycle mode if you want the alarm to sound every 5 minutes throughout the night regardless of motion.

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