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Title: Not nearly as good as the Contech brand
Review: I have three motion detecting sprinklers, two made by Contech (ScareCrow) and one by Havahart. Both of them are excellent for repelling deer (two years of experience with high deer pressure) but the Contech ScareCrow is more dependable. Although the Scarecrow sprinkler is more expensive, it is worth the price. The Havahart does not come with a guarantee other than a 30 day return policy whereas the Contech ScareCrow sprinkler has a two year warranty and they stand behind it. I had one fail after 22 months of use and they replaced it promptly. Also the motion detecting range, sensitivity, and adjustment is more stable and dependable in the Contech ScareCrow. The only time I've not had the ScareCrow work was during a period of very high humidity during some rainy weather when it failed to go off during a period of less than a day. On the other hand the Havahart motion sprinker is much more erratic in its performance and sometimes fails to work for brief periods.
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