Data center sensing

Data Center Generator Sensors

Pressure, temperature, level, vibration, current, position and speed sensors for diesel, natural-gas and dual-fuel data center generator systems.

Why it matters

Backup power has to work the first time.

Standby generators can sit idle for months, then must pick up the full site load within seconds of a utility outage. Fuel, oil, coolant and bearings all need to be in spec before that moment — so condition monitoring matters as much as scheduled test runs.

What we monitor

Oil and fuel pressure and temperature
Day-tank and bulk fuel level, including remote cellular monitoring
Intake and exhaust temperature for aftertreatment
Shaft speed and bearing vibration

What we measure

Sensor coverage for generators

Explore sensor technologies mapped to Diesel · Natural-Gas · Dual-Fuel · Gensets · ATS · Fuel Systems · Aftertreatment. Product application notes below identify where each sensor fits within this data center sub-system.

Available technologies

Sensors for Generators

18 products · 5 categories

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

NovaSensor

NovaSensor NPI/IPT Harsh-Media Family

Applications

Engine oil and fuel-rail pressure on diesel gensets

Range: 1 – 15,000 psi
Output: 4–20 mA, 0–5/10 V, I²C, SPI
Accuracy: ±0.25% FS

Custom variant

Extended-range variant to 2000 bar (29 000 psi) for generator fuel-rail applications.

All Sensors

Panel-mount CoBeam2™ transmitter

Applications

Genset crankcase pressure / breather monitoring with low-range CoBeam2™ accuracy

Range: ±0.25 inH₂O bidirectional
Accuracy: ±0.5% FSO
Output: 4–20 mA (2-wire)

NovaSensor

Nova Media-Compatible P+T

Applications

Engine oil pressure + temperature on the same port
Diesel fuel-line P+T

Tech: PT1907 MEMS die, no oil fill
Range: 15 – 600 psi
Output: I²C, SPI, 4–20 mA, Analog, SENT

Custom variant

NMC is a platform, not a single SKU — specify range, interface (I²C / SPI / 4–20 mA / SENT), process connection and cable pigtail per CDU / compressor integration. No oil-fill keeps it glycol- and refrigerant-safe.

All Sensors

Stainless-steel piezoresistive — high media compatibility

Applications

Genset fuel-line / coolant high-pressure monitoring (industrial measurements role, SS-wetted)

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

Genset fuel-line and coolant pressure with I²C telemetry into ECU and ratiometric to legacy gauges

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

Generator coolant and engine-oil temperature (M10×1 / M14×1.5 immersion housing)

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

Sealed-connector IAT NTC

Applications

Generator intake-air temperature with sealed connector for engine-bay routing

Operating: −40 to +150 °C
Response: <10 s in 15 m/s air
Connector: Delphi Metri-Pack 150.2

Thermometrics

NTC or PT100 in 304 SS housing

Applications

Generator exhaust-gas temperature for aftertreatment and DEF-control logic
Intake-manifold air temperature on dual-fuel engines

150 °C variant: −40 to +150 °C, M10×1.0
300 °C variant: −40 to +300 °C, M12×1.5
Housing: 304 stainless

Rochester

Capacitive liquid-level transmitter (with TLL head)

Applications

Day-tank and main fuel-tank level on diesel gensets

Probes: 500 / 1000 mm; field-cut to length
Liquids: Diesel, kerosene, non-conductive fluids
Supply: 9–36 VDC (80 V OVP, reverse-polarity)
Output: Resistive / 0–5 V / 4–20 mA (TLL head)
Accuracy: ±1% FS
Cert.: CE, RoHS; IP65 head

Custom variant

Integrated water-in-fuel + level assembly on a single tank penetration (WIF 2100 / 2150 / 3100 paired with the S-Series or T/LL transmitter); built-to-spec stem length and thread per OEM day-tank geometry.

Rochester

Top-mount magnetic dial level gauge (mechanical)

Applications

Generator day-tank / main fuel-tank visual level

Type: Top-mount 5-bolt magnetic level gauge
Accuracy: ±6 % (6700 base), ±7 % (Adjustable)
Variants: 6741 / 6781 + TwinSite® sender

Rochester

Cellular radar tank monitor (remote telemetry)

Applications

Remote fuel-tank monitoring for distributed / edge data-center gensets
Refill scheduling across multi-site fleets without a DCIM integration

Sensing: Radar — non-invasive tank level
Network: CAT-M1 / NB-IoT cellular (FCC)
Battery life: Up to 10 years (ATEX logger)
Certifications: ATEX / IS; UL 913 Class I Div 1, Zone 0

Rochester

Guided-wave radar level transmitter

Applications

High-accuracy continuous fuel-level on bulk diesel storage tanks

Sensing: Guided wave radar (TDR); no moving parts
Range: Up to 3 m; <2 mm resolution
Output: 0.5–4.5 V / 4–20 mA options
Sealing: IP6K9K

Rochester

Custom float and leak switches (point level)

Applications

Hi/lo fuel alarms on day tanks
Leak-detect in genset belly pans and fuel-line trays

Type: Custom-engineered float & leak switches
Capabilities: Multi-level, side-mount, continuous, P+T combos
Mfg.: IATF 16949 — Coppell, TX

Custom variant

Built-to-order: specify stem length, float material, switch action (N.O./N.C.), process fitting, cable and connector. Rochester Quick-Turn (Coppell, TX) builds from the 9871 / 9872 / 9873 / 9875 families — IATF 16949 North-American manufacturing, OEM-volume capable.

SSI

Non-contact ultrasonic level

Applications

Drop-in fuel-tank level on existing gensets without tank entry

Max depth: 32" diesel / 24" gasoline
Accuracy: ±0.125"
Outputs: 3-wire resistive · voltage · DFT-110

Wilcoxon

High-MTBF industrial accelerometer

Applications

Generator main-bearing and alternator-shaft vibration trending

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

Genset bearing and alternator vibration in retrofit deployments

System: Wireless sensor + EchoPlus® JB + Receiver
Measures: Peak/RMS vel, accel, crest factor
Integration: Modbus®

Piher

Flange-mount gear-tooth speed sensor

Applications

Generator shaft-speed pickup for governor and overspeed protection

Supply: 4–24 VDC (two-wire)
Max speed: 12 kHz fwd / 40 kHz (A/B)
Operating: −40 to +125 °C

Thermometrics

NTC probe — water-ingression resistant

Applications

Outdoor diesel-genset and coolant temperature in container / marine HVAC enclosures (water-ingression-resistant probe)

Type: NTC thermistor probe; HACT-tested
Resistance: Standard NTC curves (5K / 10K / 50K Ω)
Range: −40 to +150 °C