The Fourier Datanet DNL920 data logger has 1 internal temperature sensor, 1 internal relative humidity sensor  and 4 external sensors for: 4-20mA, 0-50mV, 0-1V, PT100, Thermocouple, Pulse Counter (input 4 only), Frequency input (channel 4 only) plus a range of user defined sensors.

The Datanet system requires 1 Receiver, plugged into a PC/Laptop and a minimum of 1 data logger in order to function. The wireless range from Receiver to logger is 80m Line of sight. This can be increased by 800m line of sight increments by adding Repeater units. Each repeater can host up to 16 loggers of its own, and can pass through the signals repeaters further afield. All loggers can also host as "Short range repeaters (50m Line of sight) making a reliable mesh network of data loggers. 

The Datanet DNL920, ZigBee wireless protocol uses a 2.4 GHz license free frequency RF band. Each DataNet can unit also serve as a transmission repeater to neighboring units, forming a reliable mesh network of up to 65,000 nodes. The ZigBee key features include:

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The HiTemp150 Temperature Data Logger is a rugged, submersible, self powered data logger capable of measuring temperatures within the range of -40° to 150° C making it an ideal logger for Autoclave validation, Dish Washer monitoring, Food preparation and a range of other applications where temperature is critical.

Featuring an in-built 50mm rigid probe, this logger is able to record without the need for external probes.

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The Madgetech PRHTemp100 Series Data loggers offer a complete environmental monitoring system, able to monitor and record: Pressure, Relative Humidity and Temperature from one all inclusive unit.

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The Smart reader plus 2 is a 4 channel, self-contained data logger that can monitor and record temperature and relative humidity - right out of the box. The on-board relative humidity sensor is temperature compensated, permitting reliable, worry free relative humidity readings

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