Shenzhen Haochen

Shenzhen Haochen Our business philosophy is: integrity, professional quality service! www.wl95.com. overseasales1@wl95.

The founding team is engaged in the sales, maintenance, leasing and recycling of optical communication and RF microwave instruments, all of them have more than ten years' experience. Haochen-technology is a provider of pre-owned general purpose test equipment.We stocks a wide variety of equipment and especially focuses on the industy of the electronics, microwave, optical communication etc.

【IN STOCK】Agilent/HP 34401A 6½‑Digit Bench Multimeter Lab‑grade precision meter, very clean condition, fully functional...
01/06/2026

【IN STOCK】Agilent/HP 34401A 6½‑Digit Bench Multimeter

Lab‑grade precision meter, very clean condition, fully functional. Won’t last long!

Key specs:
6½ digits, basic DC accuracy 0.0035%
Up to 1,000 readings/sec, GPIB & RS‑232
DCV, ACV, DCI, ACI, 2W/4W Ohms, Freq, Diode, Continuity

Self‑test PASS, no repairs, no hidden issues. Photos show actual unit.
PM for price – reasonable offers welcome. First come, first served.

🚀 New from Keysight: 86122C Multi‑Wavelength Meter✅ ±0.2 ppm absolute accuracy✅ Scan in
29/05/2026

🚀 New from Keysight: 86122C Multi‑Wavelength Meter

✅ ±0.2 ppm absolute accuracy
✅ Scan in

R&S ESW – The EMI Test Receiver That Combines Excellence in RF Performance with Unmatched SpeedEMI compliance testing do...
28/05/2026

R&S ESW – The EMI Test Receiver That Combines Excellence in RF Performance with Unmatched Speed

EMI compliance testing doesn't have to be a bottleneck.

Meet the R&S®ESW EMI test receiver from Rohde & Schwarz – designed for demanding measurements from development to full compliance.

✅ Key facts:

🔹 Frequency coverage – from 1 Hz to 8 / 26.5 / 44 GHz
🔹 Full compliance – CISPR 16-1-1, ANSI C63.2, MIL‑STD‑461, FCC
🔹 Highest dynamic range & accuracy – capture even the smallest interference
🔹 Ultrafast – FFT‑based time domain scan drastically reduces test time
🔹 Real‑time spectrogram – optional up to 970 MHz bandwidth for catching transient interference

Whether you work in automotive, aerospace, defense, or consumer electronics – the R&S®ESW turns EMI testing into a competitive advantage.

What's your biggest challenge in EMI compliance testing? Let's discuss in the comments.
Contact me 👉[email protected]

FOR SALE – USED OPTICAL TEST EQUIPMENT High-performance lab gear from Santec, ready for your R&D or production line. San...
27/05/2026

FOR SALE – USED OPTICAL TEST EQUIPMENT

High-performance lab gear from Santec, ready for your R&D or production line.

Santec PEM-340

Polarization Extinction Ratio (PER) Tester

High accuracy for PM fiber alignment & evaluation

Santec TSL 570-H

Tunable Laser Source | O-band (1260 – 1360 nm)

High power, high speed – ideal for silicon photonics & component testing

Santec PLM-100

(Polarization measurement / control module – please inquire)

Santec WSS2000

Wavelength Selective Switch

Advanced optical processor for DWDM network & lab applications



Condition: Used, fully functional, carefully maintained

Price: Best offer / contact for details

Location: Ready to ship or local pickup negotiable

DM me for specs, photos, or pricing.

Serious buyers only, please.

Feel free to share – thanks! 👉 [email protected]

⚡ Meet the Keithley 2410 – The High-Voltage SourceMeter That Simplifies Your Test BenchWhy clutter your bench with a pow...
26/05/2026

⚡ Meet the Keithley 2410 – The High-Voltage SourceMeter That Simplifies Your Test Bench

Why clutter your bench with a power supply, a DMM, and an electronic load? The Keithley 2410 replaces five separate instruments in one compact half-rack box.
That means fewer cables, faster test development, and lower overall cost of ownership.
Key specs at a glance:
🔋 Source & measure up to 1100V
🔌 Source & measure from ±10pA to ±1A
⚡ 20W power envelope | 4‑quadrant operation (source & sink)
🎯 0.012% basic accuracy | 6½‑digit resolution
📈 1700 readings/second via GPIB
The 2410 protects your device under test with programmable compliance clamping – so no more accidental overloads or thermal runaway during I‑V characterization.
Whether you're testing varistors, high‑voltage diodes, switching components, or just need a reliable SMU for daily bench work – this is the workhorse that delivers.
👉 Contact us today for pricing, availability, or a demo! [email protected]

Headline: 30+ units available! Meet the Keithley 2611B-L – built for high‑volume production and multi‑channel test syste...
25/05/2026

Headline: 30+ units available! Meet the Keithley 2611B-L – built for high‑volume production and multi‑channel test systems.

Engineers, if you are scaling up your test floor or building a parallel test station – this is for you.

Why 30+ units of the 2611B-L make sense:
Consistent performance across every SMU
TSP‑Link® technology – chain up to 64 units for high‑throughput parallel testing
4‑quadrant operation – source & sink with 30W per channel
0.015% basic accuracy – traceable results, unit to unit
6½‑bit measurement resolution – 100nV / 100fA sensitivity
Quick specs (per unit)
Voltage: up to 200V
Current: DC 1.5A / pulse 10A
Resistance: 500nΩ to 100TΩ
Built‑in DMM, AWG, pulse generator & electronic load

Perfect for:
Semiconductor I‑V / C‑V (diodes, MOSFETs) • Solar cell & LED testing • Materials research • Parallel production testing

30+ units ready – bulk purchase, or system integration.
DM for pricing and technical support.
Tag your test engineering team!
👉 contact me:[email protected]

5 MS/s High‑Resolution Digitizing – When Speed Meets AccuracyIn test and measurement, you shouldn’t have to choose betwe...
23/05/2026

5 MS/s High‑Resolution Digitizing – When Speed Meets Accuracy

In test and measurement, you shouldn’t have to choose between speed and precision.

What if you could get 5 MS/s high‑resolution digitizing and transfer 100,000 readings per second (at 4½ digits) – all over GPIB, USBTMC, or Ethernet?

Here’s what makes this instrument a game‑changer:

✅ 5 MS/s high‑resolution digitizing
Capture fast transient signals without sacrificing accuracy.

✅ Intuitive color display
View data as trend plots, waveforms, FFT, histograms, and statistics – all at a glance.

✅ Direct digitizing with speed
Achieve >100,000 readings/sec at 4½ digits over GPIB, USBTMC, or LAN.

✅ Massive onboard memory
Store up to 15 million readings – perfect for long‑duration tests.

✅ Programmable front/rear electronic switch
Get ratio results with a single remote command.
Multiple USB ports for quick data export to a flash drive.

Whether you’re automating a production test, characterizing a design, or logging data in the field – this instrument turns measurement into a smooth, efficient workflow.

💬 Have questions or want to see how it fits your application? Let’s connect.👉[email protected]

Stop waiting. Start measuring.With the R&S® RTM2052 digital oscilloscope, you get more than just 500 MHz bandwidth and t...
22/05/2026

Stop waiting. Start measuring.
With the R&S® RTM2052 digital oscilloscope, you get more than just 500 MHz bandwidth and two channels – you get a tool that works the way you work: fast, intuitive, and reliable.

⏱ Ready before the rest
While other instruments are still booting, the RTM2000 series is already showing you reliable results. No delays, no frustration.

🔍 See what others hide in noise
High sensitivity lets you detect tiny signal details that would be lost in the noise floor of ordinary oscilloscopes. Your debug confidence starts here.

⚡ QuickMeas – one button, all key values
Press a single key. Major measurement results appear right on the waveform and update in real time. No menu diving.

📊 Four tools in one

Time domain – high‑sensitivity analog analysis

Spectrum – powerful FFT for fast error detection

Logic analysis – 5 GSa/s, 20 Mpoints memory for deep digital details

Serial bus analysis – easy trigger & decode for multiple protocols

🎯 Specs that matter

Bandwidth: 350 MHz or 500 MHz (RTM2052: 500 MHz)

Sampling rate: up to 5 GSa/s

Memory depth: up to 20 Mpoints – captures long sequences with full resolution

From embedded hardware development to production and repair, the R&S® RTM2000 series turns your bench into a high‑productivity lab.

👉 Ready to upgrade your debugging workflow?
Contact your local Rohde & Schwarz sales partner or visit our website to learn more.

👉 Learn more: [email protected]

Meet the WT500 Power Analyzer – your go‑to tool for single‑ and three‑phase power measurements. ⚡✅ 0.1% basic power accu...
20/05/2026

Meet the WT500 Power Analyzer – your go‑to tool for single‑ and three‑phase power measurements. ⚡

✅ 0.1% basic power accuracy
✅ Up to 1000 V & 40 A input
✅ DC to 100 kHz bandwidth
✅ Color TFT display + USB port (data logging & memory)

Whether you're in a lab, on the production floor, or working on energy efficiency, this instrument makes power analysis simple and accurate.

Have you used a WT series analyzer before? Let us know in the comments! 👇

👉 Learn more: [email protected]

📡 R&S®SMB100B – The new benchmark in analog signal generationCompact. Powerful. Ultra‑clean.From 8 kHz up to 40 GHz – an...
19/05/2026

📡 R&S®SMB100B – The new benchmark in analog signal generation

Compact. Powerful. Ultra‑clean.

From 8 kHz up to 40 GHz – and beyond: extend your range to 170 GHz with the R&S®SZM frequency multiplier.

🔹 Outstanding SSB phase noise

< –112 dBc (meas.) at 10 GHz & 20 kHz offset – for demanding radar and comms tests.

🔹 Extremely low wideband noise

Typically well below –145 dBc (meas.) – perfect for high‑dynamic‑range measurements.

🔹 Highest output power

+34 dBm at 1 GHz | +25 dBm at 20 GHz | +19 dBm at 40 GHz (all measured)

Reduce external amplifiers and simplify your test setup.

🔹 Compact form factor

– RF models (1/3/6 GHz): 2 HU, ¾ 19″ – fits almost anywhere

– Microwave models (12.75/20/31.8/40 GHz): 2 HU, full 19″

Ideal for R&D, production, and service labs where performance and space both matter.

👉 Learn more: [email protected]

Address

No. 518055, 5F, Huazong TECH Bldg, Guanlong Vil, Xili Town, Nanshan District
Shenzhen

Opening Hours

Monday 08:30 - 18:00
Tuesday 08:30 - 18:00
Wednesday 08:30 - 18:00
Thursday 08:30 - 18:00
Friday 08:30 - 18:00

Telephone

+8675586016691

Website

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