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Description
KEMO B214Ultrasonic Distance Alerter Alarm System Kit Function Group : Alarms Detectors Security Overview An LED lights up if a body approaches the ultrasonic sensors at a distance of 10 80 cm (depending on the size of the body). Use: parking in assistance for cars in garages, alarm signal for persons or animals staying in a certain area. Operating voltage: 9 12 V DC. The device works according to the same principle as the ultrasonic echo ranging of bats. This
Ultrasonic Distance Alerter / Alarm System Kit
• Function Group : Alarms / Detectors / Security
• Function Group : Alarms / Detectors / Security
Overview
An LED lights up if a body approaches the ultrasonic sensors at a distance of 10 - 80 cm (depending on the size of the body). Use: parking-in assistance for cars in garages, alarm signal for persons or animals staying in a certain area. Operating voltage: 9 - 12 V/DC. The device works according to the same principle as the ultrasonic echo ranging of bats. This kit may be extended to relay operation with our relay board "B197" (not enclosed).
Features
Specification
- Operating voltage 9 ~ 12 VDC
- Operating frequency approx. 40 kHz
- Range approx. 10 ~ 80 cm, depending on the size of the body (approx. 0,01 ~ 0,5 m²)
- Display LED
- Current consumption < 10 mA
- Board dimensions approx. 55 x 45 mm
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.1 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Correctly targeted by Amazon's suggestion
I didn't know my dogs were crackheads until they tried this. They absolutely loved them. Even my 16 year old RUNS to get them. Definitely 5+ stars.
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Reviewed in the United States on June 8, 2026
★★★★★ 5
TheBizg
The dog'o is happy
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Reviewed in the United States on June 1, 2026
★★★★★ 4
Tasty treat but better as a quick reward than a long chew
I gave these to my German Shepherd and Lab as occasional treats. They were immediately interested and finished them quickly, which usually means they’re both appealing and easy to eat.
These aren’t long-lasting chews—they’re more of a quick snack. For larger dogs especially, they won’t keep them occupied for very long.
Compared to tougher chew options, these are better suited for training rewards or short treat sessions.
I’d rate them 4 stars. Good flavor appeal, but not designed for extended chewing.
Tip: Use them as a reward treat rather than something to keep your dog busy.
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Low fat treats
My dog loves these. Keeps begging for more. Will definitely repurchase
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Chicken and Peanut Butter - Two Great Tastes That Taste Great Together... to my Dog
My dog is a fairly selective eater, but she loves chicken jerky and peanut butter, so I thought I'd give these a try. She took to them right away, and can finish one off in about 3 minutes.
They have a distinct smell of peanut butter (despite peanut butter only being 3% of the composition). Each chicken jerky-wrapped peanut butter biscuit is about 4.5" long, and they arrive packaged in a resealable bag.
Made in China; my bag was printed with a 'BEST BEFORE' date over a year from the date I received them.
Note that these treats have been irradiated to kill harmful bacteria and parasites.
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Reviewed in the United States on April 19, 2026