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Ships within 48 hours · Estimated delivery Sep 1 - Sep 6
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Optical Time Domain Reflectometer OTDR AOR500-SAutomatic one button testing Easy to operate for beginners and experts Input laser signal auto detection and self protection Integrated PALM design, small, light, easy to carry High contrast color TFT LCD USB port for PC connection Built in VFL High speed signal processing, short test time and fast analysis User friendly OTDR simulation software shows details of events Model AOR500 S AOR500 A AOR500 B AOR500 PB Dynamic Range* 24dB 22dB 28dB 26dB 32dB
Automatic one-button testing
Easy to operate for beginners and experts
Input laser signal auto detection and self-protection
Integrated PALM design, small, light, easy to carry
High contrast color TFT LCD
USB port for PC connection
Built-in VFL
High speed signal processing, short test time and fast analysis
User-friendly OTDR simulation software shows details of events
| Model | AOR500-S | AOR500-A | AOR500-B | AOR500-PB |
| Dynamic Range* | 24dB / 22dB | 28dB / 26dB | 32dB / 30dB | 35dB / 34dB/34dB |
| Max.Distance** | 80km | 100km | 120km | 120km |
| Wavelength | 1310/1550nm | 1310/1550nm | 1310/1550nm | 1310/1550/1625nm, 1625nm with filter |
| Event Dead Zone *** | 1.5m | |||
| Attenuation Dead Zone | 8.0m | |||
| Pulse Width | 10ns, 25ns, 50ns, 100ns, 250ns, 500ns, 1us, 2.5us, 5us, 10us | |||
| Distance uncertainty | ±(0.8m ± 0.001% * testing distance ± resolution) | |||
| Loss Resolution | 0.001dB | |||
| Min.Distance Resolution | 1m | |||
| Connector | FC/PC (1310/1550), FC/APC (1625) interchangeable adapter or customize | |||
| VFL | 1mW | |||
| Data Storage | > 10000 traces (standard 1GB SD card) | |||
| Display | 3.5 inch TFT color LCD | |||
| Interface | USB | |||
| Battery | Built-in rechargeable battery | |||
| Working Time | 10 hrs (Bellcore tr-NWT-001138) | |||
| Size(H*W*D) | 197mm * 107mm * 67mm | |||
| Weight | About 750g | |||
| Storage Temperature | -20 -- +60 ℃, 90%RH | |||
| Operating Temperature | -10 -- +50 ℃, 90%RH | |||
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Worked well for 4 days spent poolside in 104° temps
Color: White, Size: 0.15 Ounce (Pack of 1)
I purchased this specifically for the Zinc/ mineral based SPF factor. There are not a lot of great options for a sun BLOCK lip balm. This is about the highest SPF I could find, in a tube/stick applicator. We use 70 and 50 alternatively and apply often for our bodies and face, but we needed an extra layer for the lips. (They really are very delicate tissues)
We like the texture, I didn't notice a flavor or odor, so I guess that's good right? I did not see any white cast to it and honestly I would not care if it did, I just want a sun block for my lips while we are poolside. It worked well.
A slight tingly feeling to my lips for the first 30 seconds when applying it, but it did not sting or irritate my skin/lips.
We went 4 days of poolside lounging and swimming with about 5-6 hours a day at the pool. We were in and out of the shade, in and out of the water, at at very dry desert Nevada 104° sunny location. We reapplied about every 1.5 - 2 hours, or if we felt like we needed it after eating or drinking something. We did not burn nor peel, our lips were soft and great.
I will keep using it and will likely purchase again, when needed. It's a good brand.
Aside from straight up old fashioned white or colored lifeguard zinc sticks, this is a less "clown like makeup" option.
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Reviewed in the United States on July 11, 2025
★★★★★ 5
Great Product
Color: White, Size: 0.15 Ounce (Pack of 1)
This lip balm was recommended by my surgeon to protect my lip from uv rays. Surprisingly, it does not have that yucky spf taste other lip balms have. It does create a white cast, but I find if I lightly put it on the cast is not prominent, and I am Caribbean with deep tan skin.
Very grateful this lip balm does its job!
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Reviewed in the United States on March 1, 2026
★★★★★ 5
Fabulous
Color: White, Size: 0.15 Ounce (Pack of 1)
Fabulous !!! Nice for lips
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Reviewed in the United States on May 24, 2026
★★★★★ 4
Protect Your Lips
Color: White, Size: 0.15 Ounce (Pack of 1)
This chapstick feels great on my lips, nice smooth texture, no unpleasant taste. It definitely protects my lips from the sun. The only downside is that it has a white tint to it on my lips; I wish it were completely sheer.
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Reviewed in the United States on June 3, 2026
★★★★★ 5
A good sun solution for sensitive lips!
Color: White, Size: 0.15 Ounce (Pack of 1)
Having sensitive lips can be super frustrating. They burn SO easily in the sun. But most sunscreen lip balms on the market irritate them. Those that don't irritate aren't moisturizing at all, so my lips become dry and chapped. Which leads to more sensitivity. Ugh. But so far this Sun Bum SPF 30 has worked for me! No sunburnt lips. No irritation. Enough moisture to keep my lips soft and healthy while working or playing outside. Sure, it's s not really pleasant tasting when it gets in your mouth, and like most zinc-based sunscreens, it makes my lips milky white. But it works for my picky lips and it's a good value for the money--it's become my summertime staple.
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Reviewed in the United States on July 20, 2023