Soil Moisture meter

New designs 2011 -11-23 Updated version, much more precision

1. The PM100 deplays capacitance domain technology so that soil moisture level can be Measured accurately.
2. The measured soil moisture level is displayed by LED in 7 steps, Showing current soil moisture level.
3. Patent pending measurement principle, low cost but with very high reliablity.
4. Battery operated, very low power consumption( one battery can last up to 8 months)
5. Shower proof construction design, works perfectly normal both indoor and outdoor
6. LED flashes every 2.5s, possible to read the soil moisture data even in darkness. Moisture level sampled every 2 minutes.
7. Single MCU based solution, measuring the soil volumetric water content (VWC) Reaing in the range between 0 to 25%
8. Ideal for home and office plant vane moisture monitoring use
9. Very low temperature effected, can be used in harsh enviornment condition
10. Self adaptive learning capbality for different types of soil. No fertilizer And salt influence on reading.