Datalogging Relative Humidity Temperature Pen soil nutruient the SPYDR 2 Series is

the SPYDR 2 Series is just 1

2mm inlet - 2 small holes (best for thinner oils)

Pure-Flo globally delivers high-quality

Potassium K+ (ppm)

Available in 2-Cylinder

Datalogging Relative Humidity Temperature Pen soil nutruient the SPYDR 2 Series isRecords up to 32,000 data points that can be downloaded by plugging the pen directly into a USB port no cradle or cable necessary. Data logging can be programmed to begin immediately, at a predetermined time, activated by the unit's push button, or to continually roll over after a set number of data points. Green and red led lights indicate data logging and alarms. Comes with software, 3. 6V AA battery (3. 6V ER14250), tripod screw and a wrist strap.