Daisy Chained Temperature Sensor
for monitoring data center racks

Daisy Chained Temperature Sensor


non-relevant transparent gif Some of ServersCheck's customers:

ServersCheck Internet Technology Companies customers
ServersCheck Technology Companies customers
ServersCheck customers from the Finance Industry
Some of ServersCheck's government customers
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key sensor features
SNMP & Modbus TCP sensor designed for monitoring temperature inside racks.

no pc required for the ServersCheck to operate once configured - measures temperatures -55C to +125C (-67F to +257F)
- a resolution of 0.02°C
- with a ±0.5% accuracy from 0°C-50°.
- only 1 IP address required for every 20 temperature sensors.

- compact plug & play sensor.
- designed for indoor use.
- steel enclosure.
- industrial grade.
- 0u rack, DIN rail or wall mountable sensor.
- plugs into the base unit.
- powered by the base unit.
- alerts via SNMP Traps, email or SMS.
- integrates via Modbus TCP, SNMP, JSON with other systems.
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Designed for rack monitoring
Daisy chained temperature & humidity sensors inside a data center
With this unique daisy chained sensors, data center operators can now start monitoring their racks at a lower cost of ownership compared to most wired and wireless solutions.

Using just one base unit and one IP address, up to 20 temperature sensors can be deployed inside your racks. Following ASHRAE standards, this means that with one single base unit you can monitor up to 3 racks with 6 sensors per rack.
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No wireless & no battery problems
Wireless technologies like Zigbee suffer from unstable connections due to interference from Wifi and LED lights. Connectivity issues also drain batteries resulting in down time and an increased total cost of ownership.

With the daisy chained sensor you won't face radio or batteries issues: the sensor is connected using a wired cable connection and is powered by the base unit.
No wireless sensors
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How It works.
Illustration showing the operation of the InfraSensing daisy chained temperature sensor


The DAISY-STARTER* sensor connects to the the base unit. Up to 20 additional DAISY-TEMP sensors can be connected to the DAISY-STARTER using simple RJ45 cables. This makes the device an ethernet based temperature sensor to monitor temperature in up to 30* points inside racks. Alerting via email, SMS, voice call. Integrates with BMS platforms using the Modbus TCP protocol. Or with NMS systems through SNMP GET and SNMP TRAPS.
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Technical Specifications

Technical Specifications. - Daisy Chained Temperature Sensor Probe (DAISY-STARTER & DAISY-TEMP)
Temperature Resolution: 0.1C (0.18)F precision
Temperature Accuracy: +/- 0.5C (+/- 0.9 F) from -10C to +85C / 14F to 185F
Temperature Reading: -55C to +125C (-67F to +257F)
Readings in Celsius or Fahrenheit
Certified SensorGateway operating temperature range: 0C to +75C (32F to +167F) in PoE mode
Operating humidity range: < 90% rH (non-condensating)
Dimensions: 74 mm (2.9") x 66 mm (2.59") x 22 mm (0.8")
Housing: Orange metal case with status led
0U Rack mountable
Maximum of 1x ENV-TEMP-START sensor and 40x ENV-TEMP-DAISY per SensorGateway
The SensorGateway is required for this sensor.
Requires SensorGateway v5.1+ with firmware 8+
Network communication protocols: SNMPv2,v3 XML, JSON, HTTP and Modbus TCP
Operating temperature range: 0C to +75C (32F to +167F)
Operating humidity range: < 90% rH (non-condensating).
Sensor connects via regular straight RJ45 cable to the SensorGateway.
Maxmimum distance between probe and SensorGateway is 100m/330ft when using a CAT6 or CAT7 cable (subject to cable quality and interference)