Question 1

When it rains, the alarm comes on.  But it never registers more than .1 of an inch, even if we get 3 inches.  How do I fix it?

Accepted Answer

i'm having the same problem.  we had over an inch of rain over the weekend and it read "00.0".  i'm going to try changing the battery.  if that don't work i'm going too contact amazon.  sorry, i can't help you.

Question 2

Does this need to be mounted, or can it just sit on the ground?

Accepted Answer

I guess it can be, however, for safety of the gage it should be mounted, for mine I use a 2x4x8 , I cut about ten inches off, drove the 2x4x8 in the ground then nailed the 10inch piece on the top ( as in a T shape). I then mounted the gage ontop. This is very secure and easy.  Once mounted the battery can be change without having to unmount the gage.  Note, mineis about 30ft fom the receiver insidean works fine. Hope this helps

Question 3

I have had several wireless rain gauges and they only seem to work for a year or so. Does anyone have it for say 3 years and have it still working?

Accepted Answer

My second unit is was purchased in 2017.  It has worked properly the entire time.  I just moved and will be buying another very soon.
I'm replacing the rain gauge because if it sits in the direct sun for a significant portion of the day, the plastic housing gets brittle.  The tabs on mine broke long ago and it is now held together with tape.  Functional but not pretty.
The unit does require some maintenance.  I've found that in the spring and fall, "tree trash" can collect in the cup and block the inlet.  I've also have to clear the spiders out from time to time.
I highly recommend this product.  So much so, i will be buying #3 in the near future.

Question 4

Can I make it empty using wireless from inside? To clear a little bit of rain and start fresh?

Accepted Answer

The collector will never have more than equiv. of 0.01 inches in it and that can be cleared electronically.

ASIN	B004V1XJW0
Additional Features	Programmable Rain Alarm
Best Sellers Rank	#5,381 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #7 in Rain Gauges
Brand Name	AcuRite
Color	Horizontal Display
Connectivity Technology	433 MHz
Customer Reviews	4.2 4.2 out of 5 stars (7,198)
Display Type	LCD
Frequency	433 MHz
Global Trade Identification Number	00072397008990
Included Components	Digital display, rain gauge, instruction manual
Is Used Where	Outdoor
Item Dimensions D x W x H	2.88"D x 11.88"W x 7.88"H
Item Type Name	with Self-Emptying Collector with Rainfall History, Alerts, and Current Date and Time (00899)
Item Weight	14.08 ounces
Lower Temperature Rating	32 °F
Manufacturer	AcuRite
Material Type	Plastic
Model	899
Number of Batteries	5 AA batteries required. (included)
Number of Items	1
Part Number	899
Power Source	Battery Powered
Recommended Uses For Product	Rainfall, Rainfall History, Rainfall Alerts
Sensor Technology	Tipping Bucket
Shape	Rectangular
Specific Uses For Product	Rain Rate
Style Name	Horizontal Display
UPC	072397008990
Unit Count	1 Count
Upper Temperature Range	120 °F
Warranty Description	1-year warranty.

AcuRite Wireless Digital Rain Gauge with Self-Emptying Collector with Rainfall History, Alerts, and Current Date and Time (00899), Multicolor

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