FEATURES * This Digital Oxygen Meter is supplied with a polarographic type probe with an incorporated Temp. sensor which serves for precise Dissolved Oxygen ( DO ) and Temp. measurement. * Applications for Aquarium, Medical research, Agriculture, Fish hatcheries, Laboratory, Water conditioning, Mining industry, Schools & Colleges, Quality control... * Heavy duty dissolved oxygen probe, probe head size can connect with BOD bottle. * Separate probe with 4 meters cable. * Automatic Temp. compensation from 0 to 50 ℃ for sensor. * Microprocessor circuit assures high accuracy and provides special functions and features. * Multi-display, show Dissolved oxygen & Temp. at the same time. * Build in temperature ℃,℉ measurement. * Temperature unit can default to ℃ or ℉. * LCD with two display, easy readout. * Auto power off to save the battery life. * Records Maximum and Minimum readings with recall. * Data hold function for freezing the desired value. * Use the durable, long-lasting components, including a heavy duty & compact ABS-plastic housing case.

FEATURES * Digital bench DCA meter, easy operation, professional quality, compact size. * 4 ranges : 2 mA x 0.001 mA 20 mA x 0.01 mA 200 mA x 0.1 mA 5 A x 0.01 A * Large LCD display. * All ranges build in fuse for over load protection * Meet IEC1010 CATII 600V. * Frequency Response : 40 Hz-500 Hz, sine wave. * Power Supply : 006P DC 9V battery. * Application : Education, Maintenance, Production line, School, Laboratory, Industrial and Quality control.