NexSens DS9093N iButton Keychain Fob

NexSens DS9093N iButton Keychain Fob


Keychain Fobs offer a simple way to carry iButton temperature loggers. Simply snap the temperature logger into the keychain hole, and it's ready to go.


  • Each pack comes with (5) Keychain Fobs for use with multiple iButton loggers
  • Fobs can easily be attached to car keys, wall hooks, rope, etc.
  • iButton loggers can interface to the PC while still attached to the Keychain Fobs
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Why Buy From Fondriest?


This is a low cost and effective way to mount the iButton logger. The holder can then be attached to car keys, wall hooks, rope, etc. It can also be used as a convenient way to transport temperature loggers on person. When used with the DS1402 USB adapter, iButton loggers can interface to the PC without removing them from the keychain.
What's Included:
  • (5) iButton keychain fobs
Image Part # Product Description Price Stock Order
NexSens DS9093N iButton Keychain Fob DS9093N iButton keychain fob, 5 pack
Usually ships in 3-5 days

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In The News

A low-cost DIY iButton array tracks lake turnover for Missouri volunteers

When Howard Webb set out to monitor turnover in Whitecliff Quarry Lake, his custom-built system of temperature sensors worked perfectly. Until the muskrats showed up. Webb, a volunteer with the Lakes of Missouri Volunteer Program , devised an inexpensive array to monitor the lake in St. Louis’ Crestwood suburb. His design for looking at the effect of temperature turnover on algae cycling centered on iButtons, small metal loggers that were very reliable, but not waterproof. That meant Webb had to find an equally inexpensive way to keep them dry. The solution? Small Nalgene water bottles to hold the loggers. Muskrats, however, mistook the bottles - which became covered in algae - for food, tearing into them and flooding the iButtons. “We thought, ‘Let’s give this a try.

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Parasite Behind Yellowstone River Fish Kill Found In Other Rivers

A parasite that caused a massive fish kill in Montana’s Yellowstone River has been found in at least seven other rivers in the state, according to the Bozeman Daily Chronicle . Scientists with the Montana Fish, Wildlife and Parks department made the find. So far, the parasite has been confirmed in the upper and lower Madison, East Gallatin, Bighorn, Stillwater, and Boulder Rivers. It had already been confirmed in the Jefferson and Shields Rivers. The microscopic parasite causes proliferative kidney disease, one of the most serious diseases to impact whitefish and trout. The effect of the disease on Yellowstone’s fish populations is exacerbated by other stressors like near-record low flows, consistent high temperatures and the disturbance caused by recreational activities.

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