Range: ±1200 mV
Accuracy ±0.01% FSR
Input Range: 0 to 2.5 Vdc
PROBE
Measurement Range: 0 to 100% VWC saturation
Measurement Type: VWC (Volumetric Water Content)
Measurement Accuracy: ±3% typical, all soils ±1%
with soil specific calibration
Measurement Time: 10 ms
Measurement Resolution: 0.002m3/m3
Life Expectancy: 3 to 5 years
General specifications
Reading Rate: 4 Hz to 1 every 24 hr
Memory: 1,000,000 readings; software configurable memory wrap;
330,000 readings in multiple start/stop
Wrap Around: Yes
Start Modes:
• Immediate start
• Delay start up to 24 months
• Multiple pushbutton start/stop
Stop Modes:
• Manual through software
• Timed (specific date and time)
Multiple Start/Stop Mode: Start and stop the device multiple times without
having to download data or communicate with a PC
Multiple Start/Stop Mode Activation:
To Start the Device:
Press and hold the pushbutton for 5 seconds, the green LED will flash during this time;
the device has started logging
To Stop the Device:
Press and hold the pushbutton for 5 seconds, the red LED will flash for three seconds
and then the green LED will flash for two seconds; the device has stopped logging
Real Time Recording: The device may be used with PC to monitor and record data in real-time
LED Functionality:
Green LED Blinks:
10 second rate to indicate logging, 15 second rate to indicate delay start mode
Red LED Blinks:
10 second rate to indicate low battery and/or full memory
Password Protection: An optional password may be programmed into the device to restrict access
to configuration options; data may be read out without the password
Engineering Units: Native measurement units can be scaled to display
measurement units of another type
Battery Type: 3.6V lithium battery included; user replaceable
Battery Life: 10 months typical at a 1 minute reading rate
Time Accuracy: ±1 minute/month (at 20ºC/68ºF, stand alone data logging)
Computer Interface: USB (interface cable required); 115,200 baud
Software: XP SP3/Vista/7 and 8 (32- and 64-bit)
IP Rating: IP65
Operating Environment: -20 to 50ºC (-4 to 122ºF), 0 to 95% RH non-condensing
DIMENSIONS
Data Logger: 36 H x 64 W x 16 mm D (1.4 x 2.5 x 0.6")
Probe: 55 L x 15 W x 1.5 mm diameter (2.1 x 0.6 x 0.06")
Cable Length: 5 m (16')
Water Box: 74 H x 148 W x 39 mm D (2.9 x 5.8 x 1.5")
Weight (OM-CP-SMR101-KIT): 198 g (7 oz)
Materials:
Data Logger: ABS plastic
Waterbox: Black Anodized Aluminum