Stanford Research Systems SR844 RF Lock-In Amplifier - with performance data

testcalinstruments
(3949)
Seller's other items
Contact seller
US $3,899.00
ApproximatelyS$ 5,073.38
Condition:
Used
“Overal great condition including front panel, rear panel and cases. Includes rack ears shown in ”... Read moreabout condition
People are checking this out. 4 have added this to their watchlist.
Breathe easy. Returns accepted.
Pickup:
Free local pickup from Diamond Bar, California, United States.
Shipping:
US $125.00 (approx S$ 162.65) Economy Shipping.
Located in: Diamond Bar, California, United States
Delivery:
Estimated between Fri, 14 Nov and Thu, 20 Nov to 94104
Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. Delivery times may vary, especially during peak periods.
Returns:
30 days return. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
Coverage:
Read item description or contact seller for details. See all detailsSee all details on coverage
(Not eligible for eBay purchase protection programmes)
Seller assumes all responsibility for this listing.
eBay item number:187536383198
Last updated on Sep 02, 2025 09:53:06 SGTView all revisionsView all revisions

Item specifics

Condition
Used
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller抯 listing for full details and description of any imperfections. See all condition definitionsopens in a new window or tab
Seller Notes
“Overal great condition including front panel, rear panel and cases. Includes rack ears shown in ...
Brand
Stanford Reseach Systems
MPN
SR844
Category

Item description from the seller

About this seller

testcalinstruments

100% positive feedback•2.8K items sold

Joined Sep 2001
Usually responds within 24 hours
Visit storeContact

Detailed Seller Ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
4.7
Shipping speed
4.9
Communication
4.9

Seller feedback (1,069)

All ratingsselected
Positive
Neutral
Negative
  • i***g (50)- Feedback left by buyer.
    Past month
    Verified purchase
    Amazing customer service. I will work with and buy from this seller again. Fast communications, quick hardware update and calibration, and fast shipping. The product was well packaged, arrived as described, and was great value for the money.
    🔥Rohde & Schwarz FSP40 Spectrum Analyzer 9kHz - 40 GHz Loaded w/Opts + Cal'd! (#187590040372)
  • o***z (3031)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Fantastic transaction, seller five star, perfect packaging, received in 2 days, item perfect as described AAAAAAAAAAA++++++++
    🔥Tektronix RSA6114A Real Time Spectrum Analyzer 9kHz-14GHz ~ w/Opt.~ Calibrated (#256911716455)
  • -***- (31)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Everything was PERFECT - shipping, packing, as described.
    🔥 Brand New! HP Agilent 8569B ( 2x 11971A ) Harmonic Mixer w/Opt. E43 18-40GHz! (#186914279525)
See all feedback