User manual
Table Of Contents
Product information16
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3.6
External sensors
3.6.1
Overview
As well as the built in sensors, USB DrDAQ has sockets for optional external sensors.
When a sensor is plugged in to the external sensor sockets, the software detects it
and automatically scales readings. For example, if a temperature sensor is plugged
in, readings are displayed in °C, or if a humidity sensor is plugged in, readings are
displayed in % RH.
External sensors are optional extras so can be purchased at any time. For an up-to-
date list of the available external sensors consult the USB DrDAQ web site at http://
www.DrDAQ.com/.
DD100 Temperature Sensor
DD011 pH Electrode
EL029 Reed Switch
DD101 Humidity Sensor
DD103 Oxygen Sensor
3.6.2
DD100 Temperature Sensor
High-accuracy general purpose temperature sensor with a 2 metre lead. Suitable for
air, surface or liquid measurements.
Range
-10°C to +105°C
Resolution (at 25°C)
0.1°C
Accuracy (at 25°C)
0.3°C
3.6.3
DD011 pH Electrode
Before using your electrode, remove either the storage bottle.
Size
12 x 120 mm
Operating temperature
0 to 60 °C
Resolution
0.02 pH
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