Recorded listings
66
Recorded quantity sold
139
Median recorded price
$54.9565 US-dollar records
Recorded price range
$10.00to $699.99 USD
First listing start: 14 Aug 2017Last listing start: 08 Nov 2026

Recorded price history

USD
Recorded US-dollar price historyLinear price scale. Horizontal axis: listing start date. Vertical axis: recorded price in US dollars. Filled dots have recorded sales; open dots have no recorded sales. The oxide step line shows calendar-month medians, with gaps for missing months.0.00200.00400.00600.00800.00Aug 2017Nov 2019Mar 2022Jul 2024Nov 20262017-08-14: US$10.00; sold recorded2017-08-24: US$12.00; sold recorded2017-09-12: US$25.00; sold recorded2017-09-27: US$28.90; no sale recorded2018-04-19: US$80.00; no sale recorded2018-04-25: US$55.00; no sale recorded2018-05-13: US$33.00; sold recorded2018-08-22: US$37.50; sold recorded2018-09-02: US$40.00; no sale recorded2018-09-09: US$30.00; no sale recorded2018-09-23: US$33.00; sold recorded2019-10-02: US$39.44; sold recorded2019-11-15: US$45.00; sold recorded2020-11-20: US$14.85; sold recorded2023-06-01: US$23.99; sold recorded2023-10-24: US$95.00; no sale recorded2024-02-07: US$39.99; sold recorded2024-02-07: US$75.00; sold recorded2024-03-18: US$35.00; sold recorded2024-04-25: US$129.99; sold recorded2024-05-23: US$24.99; sold recorded2024-08-14: US$54.95; sold recorded2024-10-01: US$158.00; no sale recorded2024-10-01: US$30.00; no sale recorded2024-10-01: US$567.00; no sale recorded2024-10-04: US$24.99; no sale recorded2024-10-04: US$349.99; no sale recorded2024-10-06: US$24.99; no sale recorded2024-10-06: US$99.99; no sale recorded2024-10-06: US$13.99; no sale recorded2024-10-06: US$79.99; no sale recorded2024-11-04: US$55.00; sold recorded2024-12-06: US$158.00; sold recorded2025-03-16: US$47.95; sold recorded2025-03-21: US$29.99; no sale recorded2025-03-28: US$40.00; no sale recorded2025-04-11: US$71.18; sold recorded2025-04-17: US$45.00; no sale recorded2025-05-03: US$65.00; no sale recorded2025-05-27: US$163.00; no sale recorded2025-09-02: US$50.00; no sale recorded2025-11-28: US$45.00; no sale recorded2025-11-28: US$40.00; no sale recorded2025-11-29: US$35.00; no sale recorded2025-11-29: US$35.00; no sale recorded2025-12-08: US$23.99; no sale recorded2025-12-09: US$345.00; no sale recorded2025-12-31: US$49.99; no sale recorded2026-01-29: US$89.00; no sale recorded2026-03-07: US$105.78; no sale recorded2026-03-14: US$105.78; no sale recorded2026-04-07: US$104.31; no sale recorded2026-04-12: US$104.31; no sale recorded2026-04-16: US$279.99; no sale recorded2026-04-18: US$279.99; no sale recorded2026-05-01: US$699.99; no sale recorded2026-05-04: US$222.99; no sale recorded2026-05-07: US$289.99; no sale recorded2026-05-29: US$249.00; no sale recorded2026-06-12: US$210.00; no sale recorded2026-06-29: US$189.99; no sale recorded2026-09-26: US$230.00; no sale recorded2026-09-26: US$130.00; no sale recorded2026-09-28: US$55.00; no sale recorded2026-11-08: US$45.00; no sale recordedRecorded US-dollar price historyLinear price scale. Horizontal axis: listing start date. Vertical axis: recorded price in US dollars. Filled dots have recorded sales; open dots have no recorded sales. The oxide step line shows calendar-month medians, with gaps for missing months.0.00200.00400.00600.00800.00Aug 2017Mar 2022Nov 20262017-08-14: US$10.00; sold recorded2017-08-24: US$12.00; sold recorded2017-09-12: US$25.00; sold recorded2017-09-27: US$28.90; no sale recorded2018-04-19: US$80.00; no sale recorded2018-04-25: US$55.00; no sale recorded2018-05-13: US$33.00; sold recorded2018-08-22: US$37.50; sold recorded2018-09-02: US$40.00; no sale recorded2018-09-09: US$30.00; no sale recorded2018-09-23: US$33.00; sold recorded2019-10-02: US$39.44; sold recorded2019-11-15: US$45.00; sold recorded2020-11-20: US$14.85; sold recorded2023-06-01: US$23.99; sold recorded2023-10-24: US$95.00; no sale recorded2024-02-07: US$39.99; sold recorded2024-02-07: US$75.00; sold recorded2024-03-18: US$35.00; sold recorded2024-04-25: US$129.99; sold recorded2024-05-23: US$24.99; sold recorded2024-08-14: US$54.95; sold recorded2024-10-01: US$158.00; no sale recorded2024-10-01: US$30.00; no sale recorded2024-10-01: US$567.00; no sale recorded2024-10-04: US$24.99; no sale recorded2024-10-04: US$349.99; no sale recorded2024-10-06: US$24.99; no sale recorded2024-10-06: US$99.99; no sale recorded2024-10-06: US$13.99; no sale recorded2024-10-06: US$79.99; no sale recorded2024-11-04: US$55.00; sold recorded2024-12-06: US$158.00; sold recorded2025-03-16: US$47.95; sold recorded2025-03-21: US$29.99; no sale recorded2025-03-28: US$40.00; no sale recorded2025-04-11: US$71.18; sold recorded2025-04-17: US$45.00; no sale recorded2025-05-03: US$65.00; no sale recorded2025-05-27: US$163.00; no sale recorded2025-09-02: US$50.00; no sale recorded2025-11-28: US$45.00; no sale recorded2025-11-28: US$40.00; no sale recorded2025-11-29: US$35.00; no sale recorded2025-11-29: US$35.00; no sale recorded2025-12-08: US$23.99; no sale recorded2025-12-09: US$345.00; no sale recorded2025-12-31: US$49.99; no sale recorded2026-01-29: US$89.00; no sale recorded2026-03-07: US$105.78; no sale recorded2026-03-14: US$105.78; no sale recorded2026-04-07: US$104.31; no sale recorded2026-04-12: US$104.31; no sale recorded2026-04-16: US$279.99; no sale recorded2026-04-18: US$279.99; no sale recorded2026-05-01: US$699.99; no sale recorded2026-05-04: US$222.99; no sale recorded2026-05-07: US$289.99; no sale recorded2026-05-29: US$249.00; no sale recorded2026-06-12: US$210.00; no sale recorded2026-06-29: US$189.99; no sale recorded2026-09-26: US$230.00; no sale recorded2026-09-26: US$130.00; no sale recorded2026-09-28: US$55.00; no sale recorded2026-11-08: US$45.00; no sale recorded
Sold recordedNo sale recordedMonthly median

Linear price scale. Dates are listing starts.

Median recorded price, all years$54.95

65 plotted records from 65 US-dollar records in this range. Monthly medians use all records in each calendar month.

Archived listings

66 recorded listings
Listing startArchived listingConditionRecorded priceQty soldArchive statusCountry
01 Jun 2023Siemens OP921 S54320-F4-A2 Fire Alarm Smoke / Duct Detector Head Free ShippingeBay 266281238884Used$23.9912Sold recordedUS
20 Nov 2020SIEMENS OP921 S54320-F4-A2 Smoke DetectoreBay 233789850441New$14.852Sold recordedUS
15 Nov 2019New Siemens S54320-F4-A2 Optical Smoke Detector OP921 (Qty 2 Available)eBay 174097379081New - Open box$45.002Sold recordedUS
02 Oct 2019Siemens S54320-F4-A2 Optical Smoke Detector OP921eBay 274036025382New - Open box$39.441Sold recordedUS
23 Sep 2018NEW SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 100923245 OP 921eBay 332816695388New$33.003Sold recordedUS
09 Sep 2018NEW SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 with mounting baseeBay 273452550597New$30.000No sale recordedUS
02 Sep 2018NEW SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 with mounting baseeBay 273438829445New$40.000No sale recordedUS
22 Aug 20181 NIB SIEMENS OP921 S54320-F4-A2 S54320F4A2 SMOKE DETECTOReBay 132753927051New$37.501Sold recordedUS
13 May 2018NEW SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 100923245 OP 921eBay 232767795708New$33.0054Sold recordedUS
25 Apr 2018NEW SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 100923245 OP 921eBay 222945497424New$55.000No sale recordedUS
19 Apr 2018NEW SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 100923245 OP 921eBay 222931122851New$80.000No sale recordedUS
27 Sep 2017 SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 100923245 NEWeBay 232503382452New$28.900No sale recordedIL
12 Sep 2017NEW SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 100923245 OP 921eBay 322739468743New$25.004Sold recordedUS
24 Aug 2017NEW SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 100923245 OP 921eBay 222622430372New$12.004Sold recordedUS
14 Aug 2017NEW SIEMENS OP921 SMOKE DETECTOR HEAD FIRE ALARM S54320-F4-A2 100923245 OP 921eBay 222612859747New$10.0039Sold recordedUS
How to read these records

Dollar amounts are recorded US-dollar prices. Bracketed labels identify other marketplaces, whose currency was not recorded. Recorded quantities sold indicate marketplace activity. Recorded active is the status retained in the archive.

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