External Voltage Sensor for the Philip Harris SensorDisc.
The probe is connected to the SensorDisc Datalogger via the micro-USB external prob
External Respiration Sensor for the Philip Harris SensorDisc
The probe is connected to the SensorDisc Datalogger via the micro-USB external p
External Current Sensor for the Philip Harris SensorDisc.
A Magnetic Field Sensor for the Philip Harris SensorDisc. The sensor connects to the Philip Harris SensorDisc Datalogger via the Micro-USB ex
A Heart Rate Sensor for the SensorDisc Datalogger.
The heart rate sensor for connection to the SensorDisc Datalogger is capable of measuring
A working model of the planetary system with a 'Star dome' making it a versatile aid for teaching basic astronomy. The planetarium comprises a circ
The Orbit Orrery model of the Sun lights up and features the planets as far as Neptune. The Earth has a moon and the planets can be moved around th
Discover our Solar System with the Celestron AstroMaster 90EQ! You'll be ready to observe in minutes thanks to the quick and easy no-tool setup. Th