Datalogging Relative Humidity Temperature Pen fluorescent-lighting Does NOT fit the vertical

Does NOT fit the vertical 30LB tank

also known as caustic soda or lye

These low-profile and easy-to-install grow-lights are ideal for vertical grows or single roller tables

Salts and Large Particles

allowing for tailored moisture distribution

Datalogging Relative Humidity Temperature Pen fluorescent-lighting Does NOT fit the verticalRecords 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.