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Wireless temperature and humidity sensor 868.3 MHz
Wireless temperature and humidity sensor 868.3 MHz
Intended use
The wireless temperature and humidity sensor is solely intended to
measure the temperature and humidity of its environment and to
transmit this to the BrematicPRO Gateway. The sensor is suitable for
measurements within a temperature range of -19.9 °C to + 59.9 °C. This
device is suitable for outdoor use; it complies with protection type IP44.
Information about Wireless Operation
This device uses the 868.3 MHz proprietary wireless protocol. Wireless
transmission is implemented using a non-exclusive channel, interference
can therefore not be excluded.
The range in buildings may vary greatly from open areas. In addition to
the transmission power and the reception characteristics of the receivers,
ambient conditions, e.g. humidity in addition to the structural conditions
on site, are important factors.
The range can be significantly reduced in part due to:
• wood, gypsum, concrete, reinforced concrete walls
• proximity to metal and conductive objects
• broadband interference, e.g. in residential areas (DECT phones,
mobiles, wireless headphones, wireless speakers, wireless
weather stations, baby monitors)
• proximity to electric motors, transformers, mains adapters,
computers
Duty Cycle
Duty cycle refers to a transmission time limit regulated by law for
devices transmitting in the 868 MHz range. It is intended to ensure
smooth operation of devices operating in the 868 MHz range. The
maximum transmission time of each device is 1 % of an hour
(corresponding to 36 seconds / hour). Once the 1 % limit has been
reached it cannot transmit until the time limit of the duty cycle has
ended, so after one hour.
Included in delivery
1 x Wireless temperature and humidity sensor
1 x Installation plate
2 x Batteries LR6 / AA / Mignon 1.5 V
1 x Installation set (screws/ dowels)
1 x Quick start guide
1 x Instructions for use (digital, available for download)
Technical data
Product designation:
TFS 868 01 IP44 3726
Item no.:
1294140
Temperature range:
-19.9 °C to + 59.9 °C
Humidity:
1 to 99 %
Radio frequency:
868.3 MHz
Frequency:
868.1 - 868.5 MHz
Max. transmitting power: < 20 mW
Duty cycle:
< 1 % per h
Supply voltage:
2 x 1.5 V LR6 / AA / Mignon
Power consumption:
30 mA max.
Battery life span:
approx. 2 years (typically)
Ambient temperature:
- 20 °C to + 55 °C
Protection type:
IP44
Open area range:
approx. 100 m
Dimensions (W x H x D): 76.2 x 71 x 25.7 mm
Weight:
54.7 g
Subject to technical changes without notice.
Device overview
Front
Installation plate
Temperature and
humidity sensor
UP symbol for
installation direction
Reverse side / inside view
Battery cover
Installation plate
Battery compartment
Pair button
