Extech Dissolved Oxygen Meter
Overview
Dissolved oxygen meters are recommended for use in the production of compost tea. Measuring the amount of dissolved oxygen in your tea will indicate if your tea is still aerobic (and good for use), or if it has gone anaerobic (not biologically beneficial).
Features:
-Super large 1.4" (36mm) LCD display
-Dual display of oxygen and temperature
-Measures dissolved oxygen from 0 to 20.0mg/L and 0 to 100.0% oxygen plus temperature from 32 to 122°F (0 to 50°C)
-Automatic Temperature Compensation from 0 to 50°C via temperature probe sensor built into polarographic type oxygen probe
-Fast 0.8 second sampling time
-Recall Min/Max/Average readings
-Data Hold
-Built-in RS-232 PC serial interface with optional data acquisition software and datalogger
-Auto power off saves batter life
-Kitted complete with 0.8"(20mm) diameter probe on 13ft (4m) cable, 3 membranes, rubber holster, 9v battery and hard vinyl carrying case
-Optional Windows Data Acquisition Software and serial cable enable user to diplay and capture readings on a PC, and set time intervals and alarms
-Optional battery operated Datalogger module stores over 8000 readings for later transfer to a PC
Range:
Dissolved Oxygen - 0 to 20.0 mg/L
Oxygen - 0 to 100.0%
Temperature - 32 to 122°F (0 to 50°C)
Accuracy:
Dissolved Oxygen - ±0.4 mg/L
Oxygen - ±0.7%
Temperature - ±0.8°C/1.5°F
Probe Compensation & Adjustment:
Dissolved Oxygen - Salt: 0 to 39%
Oxygen - Altitude: 0 to 3900m
Temperature - Temp: 0 to 50°C
Dimensions/Weight:
7 x 2.9 x 1.3" (178 x 74 x 33mm) / 17oz (meter only)
Probe: 20mm(0.8")D 125mm(4.9")L