The pF-meter delivers exact, high-resolution measurements for physically-stable substances (volumetric heat capacity, see Fig. 1).
Due to the latest measurement methods, the pF-Meter is able to record the matrix potential under equilibrium conditions (e.g. in a soil) over a large measurement range from pF 0 to pF 7.0 (see Fig. 2); this is possible with a very high resolution never reached before (see Fig. 3).
Sensor measurement data of stable substances
Sensor measurements within a controlled evaporation experiment up to pF 5.6
Sensor measurements in a sandpit experiment. The quick reaction of the pF-meter at a sudden change of the matrix potential is evident
down: typical running of pF-values during the summer 2006.
top: rain events (blue dots), surface temperature (red line)
high storage capacity
high data security
variable scan cycle
low energy consumption
Lithium Battery (removeable)
logger access protection
user friendly software
- 140mm x 20mm (housing without sensor)
- plastic or stainless steel housing/ IP69
- up to 400.000 messure values / 2.048 kb
- flash memory / not volatile
- 2s to 12h
- up to 10 years with one battery
- 2.400 mAh / -55C to + 85C / Li-COCl2
- 4 digit access code
- GP-Shell5W (Windows 95/98/XP/Vista/7)
- operating rang up to 50m
The manufacture and developement of innovative products for environment measurement is the cor expertise of GeoPrecision.
GeoPrecision Products are well known for their reliablility over many years thanks to their high technical standard and well-thought-out technology.
The universal data logger works autonomous with energy-saving GPRS transmission technology.
Designed for efficient data management with worldwide access.
very economical GPRS-transmission/ only 0.05 to 0.5 Euro cent per transmission
bidirectional internet access / field logger can be programmed over home PC
digital SDI12-bus / up to 48 digital channels
rugged aluminium housing / IP67
local data access to the logger via radio transmission / 433 MHz, range up to 100 meter
large and save flash RAM / 100.000 to 500.000 measure values
ACCESSORIES FOR THE SDI12-BUS