An AC-operated half-bridge LVDT with ±2.5 mm stroke and ±0.25 % linearity lists at roughly $300–$450 per unit at 1-piece quantity from UK and US OEM catalogues, with volume pricing to the $200 band at 50+ pieces [S3][S6].
Chinese factory-direct short-stroke LVDTs (1–25 mm range, potentiometric or AC half-bridge output) post indicative pricing from $1.00 to $80 on B2B portals, with most generic short-body units clustering between $40 and $120 at sample quantity [S5][S7].
Where the price actually lives: four cost drivers
Stroke length is the single largest first-order driver: a TE Connectivity / Macro Sensors CD-375 miniature 9.5 mm AC LVDT sits in a different cost band than the HSA 750 Series 19 mm hermetically sealed unit with 100+ mm range, even though both carry ±0.25 % linearity [S3].
Linearity class moves price step-wise: 0.3 %–0.5 % industrial LVDTs (Micro-Epsilon induSENSOR DTA, EDS series, and the Soway SDVH20) anchor the low end, while 0.01 % LVDTs (Micro-Epsilon LDR series, 25–50 mm range, 9–21 kHz measuring rate) command multiples above that baseline [S1].
Ingress protection and housing material stack additively. Stainless-steel bodies rated IP61 (CD-375) sit at one tier; IP68 hermetically sealed 750 Series units (HSA, HSTA) carry a 20–60 % premium for welded housings and 6-pin connectors, while the Macro Sensors SQ 1250 heavy-duty aluminum LVDT uses IP64 aluminum at lower cost for mill-type indoor service [S3].
Excitation type: AC-operated LVDTs require an external oscillator/demodulator (separate LVDT signal conditioner at $120–$400 extra) and therefore carry lower sensor-head cost than DC-operated (±10 V or ±15 V) units that integrate oscillator and signal conditioning inside the housing [S3].
Spec bands by use class: gauging, OEM, and harsh-environment
Gauging-class LVDTs (Micro-Epsilon DTA, 1–10 mm range, 0.3 % linearity, 2–5 kHz rate, spring-return plunger) typically list $400–$800 per axis, with interchangeability of probe tips driving serviceability value rather than headline sensor cost [S1].
TE CD-375 miniature 9.5 mm AC LVDTs are specified at ±.25 % linearity, 3 V excitation, IP61 sealing, 2.5 kHz bandwidth, stainless-steel construction, and –67 to 392 °C operating range, with the CDM-375-500 variant and a 5-part-number CD-375 miniature series offered for embedded OEM sockets where the buyer supplies the signal conditioner [S3].
Long-stroke draw-wire and LVDT hybrids (CDS1210 series, 0–10,000 mm potentiometer-coupled) trade true LVDT linearity (0.2 % best) for stroke length, and price tracks cable-and-drum assembly cost rather than transducer electronics [S1].
Industrial vs scientific LVDT cost gap
Industrial-grade LVDTs (0.3 %–0.5 % linearity, IP54–IP65, –20 °C to +80 °C, aluminum or plated-steel housing) dominate Chinese factory output at the $40–$150 / unit level, with Wuxi Houde Automation Meter's HTD series and TD-2 thermal expansion sensor aimed squarely at hydro-turbine and tank-level OEM sockets [S2].
Mid-grade LVDTs (±0.1 %–0.25 % linearity, IP61–IP68, –55 °C to +105 °C, stainless-steel housing, AC or DC operated) anchor the $300–$900 band and are the default purchase for hydraulic-cylinder feedback, valve-position verification, and test-stand instrumentation [S1][S3].
Precision-grade LVDTs (±0.01 %–0.05 % linearity, often half-bridge with 51 mV/Vmm sensitivity like the LDR series, 9–21 kHz measuring rate) command $900–$2,500+ per axis and are typically deployed in metrology rooms, materials-testing rigs, and aerospace actuator test stands where a non-linear position error compounds through closed-loop control [S1].
For a clear comparison against other position technologies, see the selection map in laser vs LVDT selection, which pairs sensor class to the duty envelope rather than to brand.
Total cost of ownership beyond the sticker
AC-operated LVDTs require an external signal conditioner (carrier oscillator + demodulator + filter), and the LVDT amplifier/instrumentation is a real second-line cost: a multi-channel rack or DIN-rail conditioner adds $120–$400 per channel, comparable in magnitude to the sensor head on short-stroke OEM units [S3][S4].
Mean time between failure on hermetically sealed LVDTs (IP68, welded stainless) routinely exceeds 10⁷ cycles for the core-and-coil assembly in OEM duty, with the dominant failure mode being cable/connector ingress rather than transducer wear, which is why HSA/HSTA pricing reflects hermetic welding cost more than sensor electronics [S3].
Stainless-steel bodies with IP65–IP67 sealing and polymer guides (Qmarz Chennai-supplied units, 1–25 mm range) extend service life in wet or corrosive plant air; the sealing upgrade typically adds 10–25 % to the bare-housing price but reduces annualised maintenance cost in washdown or coastal environments [S8].
Country-of-origin and supply-chain pricing deltas
China-based LVDT manufacturers (Wuxi Houde, Zhejiang Huiren, Soway Tech) quote FOB Jiangyin / Ningbo / Shenzhen at $40–$180 for short-stroke industrial LVDTs, with 4-week lead time at 50-piece MOQ; the Houde HTD series and TD-2 thermal expansion sensor (4 SKU family) are representative of the Jiangyin OEM cluster [S2][S5].
UK and US brand LVDTs (RDP, TE Connectivity, Macro Sensors, LVDT.co.uk) list at $300–$1,500 per unit with shorter lead times on stocked part numbers (e.g. TE CD-375, 5 part numbers in series), and 8–12 week lead times on configured specials; ISO 9001:2015 certification is the standard procurement gate for these brands [S3][S4][S6].
India-based distributors (Qmarz Machine Tools Pvt Ltd, Chennai) price at parity with the UK/US brand band for short-stroke industrial LVDTs in stainless-steel IP65/IP67 bodies, with pricing typically listed in INR and a 6–10 week shipping window to SE Asia and Middle East project sites [S8].
Procurement teams that pair LVDT selection with the right mechanical envelope often consult the spec framework in LVDT selection: stroke, linearity, excitation, and duty match, which sorts the same cost stack by duty cycle rather than by price alone.
When an LVDT is the wrong tool
LVDTs lose to laser triangulation sensors in non-contact, long-range gauging (200 mm to 2 m stroke), where laser triangulation costs less per metre of range and avoids mechanical wear on a probe tip; for that envelope, the comparison in displacement sensor technology shows the crossover point sits around 50–100 mm stroke where the LVDT's IP68 sealed body and EMC immunity still win. [S1]
Inside hydraulic cylinders, where the sensor must survive 350 bar oil and 120 °C oil temperature, the LVDT is genuinely the lowest-risk choice over strain-gauge or magnetostrictive alternatives because the coil-and-core assembly is fully potted and contactless inside the bore.
For sub-millimetre static position drift over minutes, LVDTs lose to capacitance probes or confocal chromatic sensors, which hold nanometre stability without the LVDT's residual thermal sensitivity from copper-coil resistance drift; the confocal displacement sensor page outlines the chromatic alternative for that class of work.
Sourcing checklist before you sign the PO
Lock the stroke, linearity, and excitation (AC vs DC, voltage range) before asking for quotes, because changing any of the three after the RFQ typically forces a 4–8 week re-quote cycle and breaks volume pricing tiers [S3][S4].
Confirm housing material (stainless vs aluminum vs plated steel) and IP rating against the installation environment, and require IP test certificates rather than datasheet claims, since IP61 vs IP68 alone can swing unit price 20–60 % on the same 19 mm OD form factor [S3].
For a working LVDT, the dominant environmental enemies are cable-joint ingress and connector corrosion, not coil failure, so specifying IP68 with a 6-pin military-grade connector and asking for a strain-relief boot is more cost-effective than over-spec'ing the linearity class.
Next trackable signal: the Micro-Epsilon LDR-style half-bridge LVDT (25–50 mm, ±0.01 %, 9–21 kHz) and the Macro Sensors HSTA 750 Series high-temperature (–67 °C to +392 °C) variant remain the two reference points for buyers comparing precision- and harsh-environment LVDT cost stacks in the second half of 2026 [S1][S3].
For component-level specifications, see lvdt sensor.