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Luster Leaf Rapitest Electronic 4 Way Analyzer #1880 | 
 enlarge | Brand: Luster Leaf
Category: Home Improvement
List Price: $38.29
Buy New: $26.89
You Save: $11.40 (30%)
New (8) Used (1) from $17.99
Avg. Customer Rating:  5 reviews
Sales Rank: 14281
Media: Tools & Hardware
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 0.3
Dimensions (in): 11.2 x 3.4 x 1
MPN: 1880
Model: 1880
UPC: 035307018809
EAN: 0035307018809
ASIN: B000HHLJQA
Availability: Usually ships in 1-2 business days
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| Features:
| • | Measures pH, moisture, fertilizer and light. Black plastic housing. Probes are 3 and 3/8" long. Sing | | • | le gauge for all four readings. Gauge reads as follows: for fertilizer; "too little", "ideal", "too | | • | much". For light measurement; 1000 to 100,000 foot-candle hours, for moisture; 1 through 4, with 1 b | | • | eing the driest, and for pH; 9 through 0. Comes with a complete guide with reading recommendations f | | • | or most plants. Designed for soil testing only, not liquids. |
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| Editorial Reviews:
Product Description
- No batteries requires - Custom manufactured in China - Detailed instructions inside. - Easy to follow directions on back - Compact portable meter measures the essentials for vigorous growth: - Soil pH - Soil moisture - Sunlight - Combined soil N-P-K level based on USDA Standards.
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| Customer Reviews:
 okay otherwise but ph testing feature useless June 5, 2007
30 out of 30 found this review helpful
This unit is very useful for measuring soil moisture and sunlight. While I wasn't in a position to evaluate the fertility feature, I do know that the ph testing is useless.
When I tested the commercial soil in my potted plants, I noticed that they all indicated a ph of 7. To my surprise, my yard and garden soil also indicated 7. Since I have heavy clay soil in my yard I began to suspect that the Rapitest was inaccurate.
I took a couple 1/2 cup soil samples out of the garden and put them in small seed pots, carefully followed the Rapitest instructions for ph testing and still came up with a ph of 7. I added two tablespoons of vinegar to one of the samples and two tablespoons of baking soda to the other. Results? You guessed it--ph of 7.
I found a study on the Journal of Extension ([...]) that evaluated ph testing methods for field testing by extension agents which found the Rapitest to be useless.
I would have given this unit an even lower score, but at least two of the functions worked.
 Does what it's meant to do May 24, 2007
Isn't quite as easy to use as you are led to believe, but if you follow the instructions, you get reasonable results. It's not substitute for a good soil test, but I've found it to be a good indicator of when a soil test might need to be done.
 Cheap and useless. March 26, 2007
21 out of 27 found this review helpful
The one I have doesn't work at all, so I opened it up. The total price of all the components has to be less than $5, which makes $35 a rather outrageous purchase price. The components are the case, the probes, the meter, a 50 cent rheostat, a switch, a small photo cell, and a resistor. I can't see how that meager melange is supposed to produce meaningful results.
 all 4 in one January 16, 2007
17 out of 18 found this review helpful
A very good device for the price. The only thing that I didn't realize at first was that the NPK numbers are not specifically given. Rather, the device gives you an overview of whether the nutrients are balanced or not. If the nutrients are not in the "ok" range, then you'll need to do a seperate nutrient test to find out exactly what the levels are.
rapitest electronic 4 way analyzer July 8, 2006
5 out of 25 found this review helpful
it did what it's suppose to do I just don't use it like I thought I would
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