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Data center sensing

Data Center Rack Infrastructure Sensors

Sensors for data center racks, environmental monitors, containment and edge infrastructure, covering thermal, airflow, leak and vibration monitoring.

Why it matters

The rack is where problems show up first.

Hot spots, blocked airflow, drips from in-rack liquid cooling and failing fans all appear at rack level before they register at room level. Rack environmental monitors give operators per-rack visibility across dense rows, containment aisles and unmanned edge sites.

What we monitor

  • Inlet and exhaust temperature and humidity
  • Blade and containment airflow
  • Under-rack and drip-tray leak detection
  • Fan vibration

What we measure

Sensor coverage for rack infrastructure

Explore sensor technologies mapped to Enclosures · Environmental Monitors · Containment · Micro-DC · Edge. Product application notes below identify where each sensor fits within this data center sub-system.

Available technologies

Sensors for Rack Infrastructure

22 products · 6 categories

Not sure what you need? Tell us about your rack infrastructure application and our team will recommend the right sensors.

i2s

Quick-disconnect coolant pressure sensor with I²C output for rack and blade level

Applications

  • Blade-level coolant pressure in liquid-cooled racks
Ranges
0–7 bar up to 0–20 bar (35 bar overpressure)
Accuracy
±0.5% FS (0–85 °C)
Output
I²C · 2.7–5.5 VDC
Connection
MQD-02 dry connect/disconnect · 4-pin JST
i2s

Stainless-steel coolant pressure sensor for rack inlet/outlet monitoring

Applications

  • Rack-level liquid-cooling inlet/outlet pressure monitoring
Ranges
0–7 bar up to 0–20 bar
Accuracy
±1% FS (10–80 °C)
Output
10–90% Vs ratiometric · 5 V supply
Connection
UNF 7/16"–20, HEX 24 · 3-pin plug
NovaSensor

NovaSensor NPI/IPT Harsh-Media Family

Applications

  • Submersible leak-zone sensing in containment trays
  • Smart-system leak detection where media isolation is required
Range
1 – 15,000 psi
Output
4–20 mA, 0–5/10 V, I²C, SPI
Accuracy
±0.25% FS
NovaSensor

SMT MEMS + ASIC in miniature housing

Applications

  • Board-level leak detection on rack environmental monitors
Range
2" H₂O to 30 PSI (A/D/G)
Output
Analog + I²C / SPI / SENT
Package
SOIC-14 SMT T&R

Custom variant

SMT tape-and-reel with customer-logo marking for OEM PCB integration; digital (I²C/SPI/SENT) and analog variants share pinout; barometric-only NPA-700 range for altitude compensation.

NovaSensor

Board-mount piezoresistive ΔP

Applications

  • Rack-row CDU board-level ΔP (integrated into CDU controller PCBs)
Ranges
10" H₂O – 100 psi (G/D/A)
Output
50–150 mV piezoresistive
Linearity
±0.1% FSO (±0.25% on 5 psi)
All Sensors

Leadless dual-die digital ΔP

Applications

  • Rack-blade airflow ΔP feedback in dense compute rows
Type
Leadless dual-die CoBeam2™
Range
±0.5 to ±60 inH₂O (G/D)
Output
Digital I²C & SPI
All Sensors

Ultra-low-pressure CoBeam2™

Applications

  • Rack-mount controllers requiring ultra-low-pressure feedback in space-constrained boards
Type
Ultra-low-ΔP CoBeam2™
Range
0.5–30 inH₂O · 1–150 psi
Output
I²C · SPI · analog
NovaSensor

Miniature SO-8 SMT barometric

Applications

  • Reference pressure for environmental-monitor controllers, gauges and manometers
  • Cable-leak-detection controller boards
Range
100 – 700 kPa absolute
Tech
Silicon Fusion Bonded
Package
SO-8 SMT
All Sensors

Stainless-steel piezoresistive — high media compatibility

Applications

  • High-pressure rack-row coolant manifold pressure where SS-wetted media compatibility is required
Tech
Piezoresistive (SS 316/316L wetted)
Range
200 mbar – 35 bar (A / G / V)
Output
mV (1.5 mA constant-current)
All Sensors

Stainless-steel piezoresistive — analog + I²C

Applications

  • Rack-row high-pressure manifold monitoring with single-sensor analog + digital outputs
Tech
Piezoresistive + ASIC (SS 316/316L)
Range
200 mbar – 35 bar / 3 – 500 psi
Output
0.5–4.5 V ratiometric + I²C
Thermometrics

Waterproof IP68 overmolded NTC

Applications

  • Rack inlet / exhaust thermal profiling (multi-probe trunk)
Protection
IP68 waterproof overmold
Range
−50 to +105 °C (+125 °C ≤ 6 h)
Thermistor
10 kΩ NTC

Custom variant

Longer probe lengths (6″ / 12″) for duct insertion; threaded SS housing for pipe immersion; networked multi-probe cable (up to 8 probes / run) for rack-row monitoring.

Thermometrics

Surface-stick NTC (flat / pipe / cable)

Applications

  • Rack-row server-fan exhaust skin temperature on hot-aisle plenums (linear-output IEPE / band-mount, no penetration of rack chassis)
Operating
−30 to +70 °C
R @ 25 °C
9983 Ω (typ)
Mounting
Pressure-sensitive adhesive
Thermometrics

Non-contact IR temp modules

Applications

  • Rack-row busbar / power-strip non-contact thermal mapping for hot-spot detection
Type
Non-contact IR thermopile
Output
Digital I²C (24-bit ZTPD)
Supply
4.75–5.25 V; ~4.5 mA
Telaire

OEM board-level T+RH

Applications

  • Rack-row environmental monitor T+RH probe (1 m / 1.8 m cable for in-rack placement)
RH accuracy
±2.0% RH (20–80%)
Temp accuracy
±0.5 °C (14-bit)
Output
I²C or PDM
Telaire

Capacitive RH + T with integrated ASIC

Applications

  • In-rack environmental monitor SMT-integrated T+RH for tight-form-factor sensor cards
Type
Capacitive RH+T, LCC SMD
RH accuracy
±2.0% RH (20–80%)
Temp accuracy
±0.3 °C
Telaire

HS20 / HS12SP / HS30P family

Applications

  • Enclosed-electronics humidity monitoring (filtered HS12SP)
Type
Bulk-resistance RH (thin-film polymer)
Variants
HS20 / HS12SP / HS30P
Drive
Low-V AC, 50 Hz – 1 kHz
Telaire

MEMS thermal air-velocity sensor

Applications

  • Per-blade airflow in space-constrained rack-level environmental monitors
Ranges
0–7 m/s or 0–15 m/s
Interface
I²C 12-bit
Response
125 ms typ
Thermometrics

LET-Basic / LET-Plus / LET-Elite alarm modules with sense cable

Applications

  • Floor-tile leak zones; under-rack leak loops
  • Use LET-Elite where leak *location* matters — locating cable up to 1,500 m with position shown on LCD; LET-Basic for simple zone alarms (DIN-rail, auto-reset); LET-Plus where cable-break detection, IP65 wall-mount housing and manual/auto reset are required
Type
Rope-style sense cable + alarm module
Cable length
Up to 500 m (Basic, Plus) · up to 1,500 m locating (Elite)
Interface
RS485 Modbus RTU · BACnet IP / Modbus TCP support · relay outputs
Thermometrics

Point/spot water-detection sensor

Applications

  • Rack drip trays and localized leak points — dry contact back to the environmental monitor
Sensing R
510 kΩ ±3% (1/4 W)
Supply
5 VDC recommended
Operating
−40 to +85 °C
Wilcoxon

High-MTBF industrial accelerometer

Applications

  • Rack-level vibration for early fan-bearing failure detection
Sensitivity
100 mV/g ±5%
Response
0.5 – 14,000 Hz
Max temp
120 °C
Compliance
API 670; CSA / ATEX / IECEx variants
IMI

Echo® sensor + EchoPlus® wireless

Applications

  • Wireless vibration trending on in-row cooling fans, rear-door heat exchanger fans and rack-mounted PDU fans — retrofit where wiring is impractical
System
Wireless sensor + EchoPlus® JB + Receiver
Measures
Peak/RMS vel, accel, crest factor
Integration
Modbus®
Telaire

SIP through-hole T+RH module

Applications

  • Rack-row environmental cards with through-hole sensor stacking
RH accuracy
±2.0% RH (20–80%)
Output
I²C or PDM
Package
4-pin SIP through-hole