1. 6-Port Global Data Transmitter

3. Always a complete data set Smart while efficient 6 ports for sensors Secure data transmission 3G GPRS or UMTS coverage Internal barometric and temperature sensor Designed for field use Easy to use 6-Port Global Data Transmitter

4. The most important functions: – Transmitting sensor data of the connected sensors to the Back Office – Enabling remote monitoring and control of the connected sensors The most important features: – No software needed – Global connectivity – Easy ‘plug-and-play’ installation – Internal barometer – Multiple sensors can be connected. 6-Port Global Data Transmitter

5. Comparison GDT MultipleMonitoring well modemSMS modem 6 ports1 port2 or 8 ports 1 battery type 2 battery types Option external power supply- 2 types antennas3 types antennasFixed antenna Service tool Servicing Hyperterminal 1 button - Status/Signal strength ledStatus ledsStatus display Communication via EAE server Communication direct via e-mail & SMS Communication via SMS Service over the airService over the air (limited)- Webportal e-SENSE direct + pc-modem 3 years1.5 – 2 years1 year battery lifetime

6. Principles of 6-Port GDT Multiple GDTm Svr e+ e+MP E-mail, files, database webportal Service via web Modem only functions via Eijkelkamp server Modem wakes up  Server has control Modem and loggers can be started, stopped and reset Modem can be updated via server Setup via server Measurements are subject to entrance control, eventually compensation.

7. Customer Benefits Lower data costs Long battery life Remote management of modem and loggers saves hour of field work Global data coverage Fully backed by the Van Walt Technical team.

8. Customer Example Tree consultantArt no. 1 Mini-Diver + 10 m cable Unchanged 1 e+ RAIN + 10 m 2-eye cable Unchanged 3 e+ SOIL MCT + 10 m 2-eye cable Unchanged Above ground housing 11.32.51 Field support 11.41.92.01 1 Pillar antenna 11.32.33 1 modem (GDT Multiple GPRS)11.32.01 1 modem software (modem) 11.32.11 5 modem software (logger) 11.32.11.01

9. Expenses for Customer Tree consultant Equipment (one-off) Loggers Cables Modem Antenna Housing/support Software (one-off) Connection via Database or files (optional) Use of server and maintenance of software (periodical) Modem software Logger software

10. The Future Global Data Transmitter Multiple is a platform & expandable  Wireless sensors, analogue, control signals, q-SENSE, etc. Front-office will be modernised  Basic application showing data  Extra tools for customer (visualisation, reports).