Pulse Counter / Dry Contact Sensor with Temperature Sensor

ZBS-141 / -144 - ZigBee
MBS-141 / -144 - wireless M-Bus


  • Counting of 1 potential-free pulse input (-141)
  • Counting of 4 potential-free pulse inputs (-144)
  • Counted pulses are stored locally into non-volatile memory, configurable to once per hour or once per day
  • Dry Contact Sensor: Contacts can be configured as NOC/NCC. Changes are detected and transmitted immediately.
  • Intelligent, integrated relay contact cleaning system, highly optimized for ultra-low-power reed relay contact
  • Measurement of 2 external temperatures (digitally calibrated sensors)
  • Max. IP66 rated (depending on cable input), cable screw connection included
  • Fast and reliable internal connection for solid & flexible wires, with or without wire end sleeve
  • Robust ABS chassis, contact manufacturer for outdoor Polycarbonate chassis
  • 120 x 65 x 40 mm
  • Battery-Low message
  • Firmware upgradable via ZigBee network

Technical data:

Standards ./.
LxWxH [mm] 120x65x40
Material ABS, grey
IP Rating IP65
Power Supply
External Voltage External power supply available
External Connector on demand
Internal 1x AA 3.6V (Li)
1x C cell 3.6V (Li) on demand
Typ. Power Consumption depending on configuration
Interfaces / Sensors
Pulse Counter, Dry Contact Monitoring -141: 1x Connection for potential-free wires
-144: 4x Connection for potential-free wires, (-) pins of all connectors are connected with each other, use external decoupler if required.
Debouncing 100ms, max. contact frequency 5Hz
Temperature Connectors for 2 external, digital calibrated temperature sensor cables: -50 °..+150 °C

+10..+90 °C: -0.3..0.3 °C, typ. +/-0.3 °C
-20..+110 °C: -0.6..0.6 °C, typ. +/-0.3 °C
-50..+150 °C: -1.2..1.2 °C, typ. +/-0.5 °C
Operating Temperature -10..+40 °C
Operating Rel. Humidity non-condensing
Storage -30..+60 °C
Safety / EMC / RF CE
Tariff Information 9031 8038

Communication ZigBee
Protocol / Frequency IEEE 802.15.4 ZigBee,  max. 250 KBit/s, ISM 2.4 GHz
Role / Mode Router
Max. direct joined end nodes 20, use further routers for additional end nodes
Transmit Power +8 dBm (6 mW)
Receive Sensitivity -102 dBm
Antenna Internal, PCB
Encryption AES128

Communication Wireless M-Bus (MBS-)
Protocol / Frequency OMS / Wireless M-Bus 868 MHz
Role / Mode End-Node
Operation Mode: T1
TX Cycle:
60s mains powered
300s battery powered
Transmit Power +10 dBm
Receive Sensitivity -112 dBm
Antenna Internal, PCB

Communication Wireless LAN
Protocol / Frequency IEEE 802.11 b/g/n (2,4-2,5 GHz)
Role / Mode Configuration: Access Point
Operation: Client
Transmit Power max. +20 dBm
Receive Sensitivity max. -98 dBm
Antenna Internal, PCB
Encryption WEP, WPA, WPA2

Ordering / Options:

  • 75ZBS141 1x Pulse Counter and 2x contacts for external temperature sensors
  • 75ZBS144 4x Pulse Counter and 2x contacts for external temperature sensors (-40..+95°C)
  • 73TEMP2M5 external temperature sensor with 2.5m cable length
  • 73TEMP5M0 external temperature sensor with 5.0m cable length
Date: 06/05/13, Version: 2.0


pikkerton GmbH
Wohlrabedamm 16
D-13629 Berlin
Tel.: +49 30 3300724-0
Email to pikkerton
Used Technologies

Typical Applications
  • Energy Metering
  • Counting of external meter pulses
  • Contact monitoring for doors and windows.
  • Measuring of water temperatures in pipes

Literature / Download
...can be found in Service & Support
print datasheet

Contact  Imprint  | pikkerton GmbH - Phone: +49.30.3300724-0