Jumo 902928 Temperature Transmitter Pt1000 Input, 18 → 30 V dc

The Jumo Wireless transmitter is used in conjunction with a separately available receiver for the acquisition of measured values for humidity and temperature, as well as CO2. The transmitter has 2 inputs with plug connection M12 x 1, to which digital sensors (available as accessories) can be connected and recognized in any combination (plug-and-play). The sensor is therefore suitable for many applications, whereby a high wiring effort should be avoided or is not possible at all. The free field range of the radio signal is 300 m. A maximum of 4 measured values can be recorded. They are transmitted with a radio frequency of 868.4 MHz to the receiver of the radio measuring system, where they are displayed and are available as digital or analog output values. The power supply is external (DC 18 to 30 V) or internal by 4 lithium batteries (size AA). With the recommended battery type the battery life is 1 year (with factory setting and one sensor).

The electronics of the transmitter with backlit LCD display and operating keys are built into a wall-mounted housing (protection class IP65)
The ambient temperature range of the transmitter is -30 to +80 °C, taking into account the different ambient temperatures of the sensors and lithium batteries
The configuration of the transmitter can be set via the USB interface or the control keys