Aranet · Updated June 2026
Aranet4 Home: price, specs & release date
Aranet4 Home, released 2019. Every price and spec below is linked to its source and dated — no guesses.
Source: aranet.com verified ✓ corroborated verify in ledger
- Best for Accurate, reliable CO2 readings confirmed over years of hands-on use.
- Skip if Measures only CO2, unlike multi-pollutant rivals is a dealbreaker.
Is the Aranet4 Home a good buy?
At $189, the Aranet4 Home is #9 cheapest of the 17 air quality monitors we track, where the median is $189. On the spec sheet, its release year of 2019 is below the median of the 12.
Evidence of Record
Our dataNo independent lab has measured this product yet. 1 outlet has it on record by mention only, with no hands-on measurements published to weigh its claims against — a gap in the evidence, not a verdict on the product.
Review consensus · sourced & dated
What reviewers say about the Aranet4 Home
Only one whitelisted tester covers the Aranet4: NYT Wirecutter, which reports hands-on use over years and praises its accuracy and reliability, but flags that it only tracks CO2. In its October 2025 update Wirecutter places the Aranet4 in the 'competition' section rather than as a pick, favoring the multi-pollutant AirGradient One (which uses the same NDIR CO2 sensor plus more). No lab-measured Aranet4 figures were published; the surviving quotes come from Wirecutter's competition write-up.
Based on 1 review · 2025-10-01
Tested by Wirecutter
Consistently praised
- Accurate, reliable CO2 readings confirmed over years of hands-on use
Commonly flagged
- Measures only CO2, unlike multi-pollutant rivals
Where reviewers disagree Single whitelisted source, so no cross-source comparison is possible. Wirecutter still calls the Aranet4 accurate and reliable but keeps its overall top pick as a multi-pollutant monitor (AirGradient One) because the Aranet4 tracks CO2 alone.
The sources (1)
We have used the SAF Tehnika Aranet4 carbon dioxide detector for years and have been impressed by its accuracy and reliability.
But it only tracks CO 2
Specifications
| Price (US) | $189 Current street price; original MSRP was ~$249 |
|---|---|
| Brand | Aranet |
| Released | 2019 |
| Pm25 sensor | No |
| CO₂ sensor | Yes |
| Voc sensor | No |
| Radon sensor | No |
| Display screen | E-ink display (numeric CO2 ppm readout) |
| App connectivity | Yes |
| Power | 2 AA batteries (up to 4-7 yr depending on battery type) |
Source: aranet.com (verified 2026-06-20) · corroborated by breathesafeair.com. Official Aranet page confirms CO2 (NDIR), temp, humidity, pressure; no PM2.5/VOC/radon; e-ink display; battery-only (2 AA, up to 4 yr alkaline / 7 yr lithium); Bluetooth app. breathesafeair and HouseFresh confirm street price dropped to ~$189 from ~$249 original. Verified 2026-06-20.
Is the Aranet4 Home worth it vs cheaper air quality monitors?
Aranet4 Home against its closest cheaper and pricier air quality monitors on the specs that matter — every value sourced. See all 18 ranked
| Product | Price | Pm25 sensor | CO₂ sensor | Voc sensor | Radon sensor | Display screen |
|---|---|---|---|---|---|---|
| Aranet4 Home this | $189 | No | Yes | No | No | E-ink display (numeric CO2 ppm readout) |
| Qingping Air Quality Monitor Gen 2 | $149.99 | Yes | Yes | Yes | No | 4 in IPS touchscreen, 720x720 px |
| PurpleAir Touch | $209 | Yes | No | Yes | No | No screen - full-color LED ring (AQI color scale) |
Frequently asked questions
What do reviewers say about the Aranet4 Home?
Only one whitelisted tester covers the Aranet4: NYT Wirecutter, which reports hands-on use over years and praises its accuracy and reliability, but flags that it only tracks CO2. In its October 2025 update Wirecutter places the Aranet4 in the 'competition' section rather than as a pick, favoring the multi-pollutant AirGradient One (which uses the same NDIR CO2 sensor plus more). No lab-measured Aranet4 figures were published; the surviving quotes come from Wirecutter's competition write-up. Praised: Accurate, reliable CO2 readings confirmed over years of hands-on use. Flagged: Measures only CO2, unlike multi-pollutant rivals. (From 1 tester review.)
How much does the Aranet4 Home cost?
The Aranet4 Home has a US price of $189 (Current street price; original MSRP was ~$249), as of 2026-06-20.
How does the Aranet4 Home compare on price?
At $189, the Aranet4 Home is #9 cheapest of the 17 air quality monitors we track, where the median is $189.
When was the Aranet4 Home released?
The Aranet4 Home was released 2019.
What are the Aranet4 Home's key specs?
Aranet4 Home (Aranet): pm25 sensor No, co2 sensor Yes, voc sensor No, radon sensor No, display screen E-ink display (numeric CO2 ppm readout). Full sourced spec sheet verified 2026-06-20.
Price of record: $189 at aranet.com, 2026-06-27. Other retailers may be lower — check the current price:
See Aranet4 Home on Amazon As an Amazon Associate we earn from qualifying purchases.Similar air quality monitors
Nearest in price — swipe to browse. Every pick sourced and dated.
All air quality monitors ranked · Open data & methodology · Queryable via MCP
Compare with
Head-to-head
Cheaper air quality monitors
- Qingping Air Quality Monitor Gen 2 $149.99
- Temtop M10+ $129.99
- Temtop P1000 $129.99
- Eve Room $99.95
- Temtop M10 $72.99
- Amazon Smart Air Quality Monitor $69.99
Step up
- PurpleAir Touch $209
- Atmotube PRO 2 $219
- Airthings Wave Plus $229
- AirGradient ONE (I-9PSL) $230
- Airthings View Plus $299
- Awair Element $299
Part of the Home air & climate cluster
Cleaner, drier, cooler air — compared on the numbers that matter. Same sourcing, same dated prices: