When a hospital asks us for the polysomnography machine price in India, the straight answer is that a PSG system does not have one price. It is quoted to a configuration: which sleep study levels you will run, how many signals you record, whether you watch on video, how many beds you equip and who will score the studies. This page explains each of those, shows where Sonata, Scala, SAMOA and prismaLAB fit, and ends with a form for a written quotation built on your answers.
Search for “PSG machine price” and you will find single figures. They are rarely useful, because the same model name covers very different set-ups. The Sonata PSG price varies with its configuration, the channels you need and the software licence. A pulmonologist who wants to screen for sleep apnea at home needs a 12-channel polygraph. A neurology department that wants to catch nocturnal seizures on video needs full EEG, synchronised video and a monitoring station.
A price list that ignores this either over-quotes the first buyer or under-quotes the second. So we quote in writing, after we know what you will use the system for. GST is added to the quoted price.
Sleep study services vs machines
If you are a patient looking for the cost of a sleep test rather than a machine, our sleep study test page lists the price of each study level in Chennai.
Sleep studies are graded by how many signals they record and whether a technician is present. The level you plan to offer decides the machine, and the machine decides most of the price.
Level 4
One or two signals, usually oximetry. It is a screening tool rather than a sleep study system, and none of the machines on this page is a Level 4 device.
Titration nights: prismaLAB
prismaLAB is not a recorder. It is the lab CPAP / APAP / BiLevel device that sits at the bedside when a technician sets a patient’s therapy pressure, and it feeds up to 8 analog signals into the PSG. Budget for it if your lab will titrate. See prismaLAB
These are the lines that move a PSG or sleep study system quotation up or down. If you are comparing two quotations, check that both cover the same lines.
This is the biggest single factor. A 65-channel Sonata recording EEG, EOG, EMG and ECG is a different machine from a 12-channel SAMOA that records breathing, oxygen and position. The Sonata price itself varies with configuration, channel requirement and software licence, which is why two “Sonata” quotations can differ.
An attended lab needs online recording to a monitoring station, so the technician sees every channel live. Portable studies are recorded offline and downloaded the next morning. Scala does both, and has an optional WLAN variant for wireless transmission; options like that appear as separate lines on a quotation.
Synchronised video is what lets you see a parasomnia or a seizure next to the EEG that recorded it. Sonata records synchronised video, Scala records time-synchronised video and audio, and SAMOA records audio and video in online mode. Cameras and video software add to the quotation.
Sonata’s software follows the AASM manual for electrode setup, digitisation and scoring. Ask how many workstations the licence covers: the acquisition PC in the control room, and any review PC where the physician signs reports.
Adding beds does not multiply every line, but each bed needs its own recorder and sensors, and each home-testing slot needs its own device. Your expected patient volume decides this more than anything else.
If you plan to titrate patients in the lab, the quotation includes a lab therapy device at the bedside. Sonata integrates with Löwenstein prismaLAB and prismaSMART so pressure and sleep signals are recorded together.
Some sensors are reusable, others are single-use: nasal pressure cannulas, T-adapters, adhesive and cup electrodes. Sonata is built around durable sensors with low follow-up cost. Ask for the consumables list priced per study, because that running cost does not show up in the machine price.
With every sleep diagnostics system we supply, we install and calibrate it on site and train your technicians on operation, patient hook-up and the software. If you are building the whole lab, our sleep lab setup service covers room planning as well.
The three Löwenstein recorders we supply, by what they record. The more a column fills in, the more the system costs and the more conditions it can diagnose.
| Sonata (PSG) | Scala (polygraphy) | SAMOA (polygraphy) | |
|---|---|---|---|
| Typical use | Level 1 in-lab PSG; Level 2 home PSG | Level 3 polygraphy, home or clinic | Level 3 home sleep apnea testing |
| Channels | 65 | 19 | 12 |
| EEG / EOG / EMG / ECG | Yes, full montage | 4 configurable electrode inputs (EEG, EMG or ECG) | Not included |
| Airflow | Nasal and oral airflow | Nasal pressure cannula and thermistor | Nasal cannula and thermistor |
| Respiratory effort | Thoracic and abdominal | Pressure pads or RIP induction belts | Pressure pads |
| Video / audio | Synchronised video | Time-synchronised video and audio | Audio / video in online mode |
| Recording | In-lab and portable | Online and offline; optional WLAN | Online and offline |
| Therapy link | Integrates with prismaLAB and prismaSMART | Monitors PAP / NIV flow; external analog inputs | Bluetooth to prisma SMART / SOFT |
Full specifications are on each product page. The whole range is listed under sleep diagnostics.
When a buyer says “portable PSG” they mean one of two systems, and the price gap between them is large. One is a full polysomnograph set up to record away from the lab, which is how we run Level 2 home studies on Sonata. The other is a Level 3 polygraph, Scala or SAMOA, that records breathing, effort and oxygen but not EEG.
Before you compare prices, decide whether you need to stage sleep. If the question is “does this patient have obstructive sleep apnea?”, a polygraph usually answers it. If the question involves parasomnia, narcolepsy or nocturnal seizures, you need EEG, and a polygraph will not do.
Portable full PSG (Level 2)
EEG, EOG, EMG, ECG and respiratory channels. Needs a trained person for the hook-up. Priced as a PSG system.
Portable polygraph (Level 3)
Airflow, effort, SpO₂, pulse, position and snoring. Simple to fit, quick to download. The lowest-cost route into sleep testing.
More on how home recording works in our portable polysomnography guide.
We are an authorised Löwenstein Medical dealer, so the systems on this page are the ones we supply, install and support. We won’t comment on other brands’ prices. What we can tell you is which questions separate a good purchase from an expensive one, whichever brand you buy.
The machine price is a small part of what a sleep lab spends over the years. Software terms, consumables and service in your city matter as much.
65-channel PSG to the AASM manual, with synchronised video and titration integration.
Specifications
19-channel polygraph with four configurable electrode inputs, online or offline.
Specifications
12-channel compact polygraph for home sleep apnea testing.
Specifications
Lab CPAP / APAP / BiLevel device that feeds up to 8 analog signals into the PSG.
SpecificationsThe recorder is one line. A lab also needs a quiet room, a monitoring station, trained technicians, a physician to report and a plan for CPAP follow-up. Our guide on how to start a sleep lab goes through each of these, and our turnkey sleep lab setup service plans, supplies, installs and trains in one project.
Tell us which studies you plan to run, how many beds and recorders you need, and whether you want video and titration. Our team will call to fill any gaps and send a written quotation for that configuration. GST is added to the quoted price.
Share your facility and the studies you plan to run. We reply with a suggested configuration and a written quotation.
