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Accessories for Upright BassFun Stuff
Accessories for Upright BassInstrument Care

Humi-Doctor - Miniature Humidity/Temp monitor

         Manufactured by: JHT

Continental US - larger items may carry a partial shipping charge to AK, HI and PR

This Item SHIPS FOR FREE in the USA!
(Note that larger items may carry a partial shipping charge to AK, HI and PR.)
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IMPORTANT NEWS: We are here! You can order with confidence.

The COVID-19 pandemic has people understandably highly concerned. With abundant cautionary procedures, the bassists at Gollihur Music are still maintaining our normal (online) business hours and shipping out orders every weekday.

Since we are not a "bricks and mortar" store, we are not affected by mandatory retail closures. There are just two of us here at the shop, and we have temporarily put a halt to in-person appointments to limit any chance of exposure. We are taking appropriate measures to protect ourselves and our customers from any possible infection. We're confident that we can continue to provide you with your bass needs through this complex time.

Do note that some of our suppliers have been suspending or limiting operations, though, so some products may be a little less available. But we are well stocked with the bass-ics!

You've got to keep your bass in a safe environment to protect it from issues, like popped seams, cracks, and other problems. Swings of humidity - both high and low - and rapid temperature changes can cause headaches with our delicate instruments.

With this handy little device, you can check the temperature and humidity level, where your bass is, quickly and easily. Simply attach it to the bridge using the built-in clip, or use the included velcro patch to mount on a music or bass stand, on the wall, or in your case. It instantly shows the current humidity and temperature.

You can also program in your desired humidity, and when it gets outside of that range, the display will flash to let you know that you need to move your instrument or adjust the humidity in the room.

For basses kept in the open air (not in their cases) those little "soak and hang" humidifiers don't do anything - if air can flow in and out of the bass freely, so can moisture - so that little rubber thingie is humidifying the whole room (and not very well.) For an internal perforated tube humidifier to be effective, you need to put the bass in a "closed environment" (like your case) to keep the moisture from escaping.

So you'll need a room humidifier, which you can get at your local department store. Lots of better ones, rather than being on all the time, have built-in humidity controls that turn it on and off (recommended). But having this little device will make it easier to double-check that you're keeping your bass safely in the right range, as many of those built-in hygrometers may not be as accurate.

A single "watch" battery (included) is required for the unit to work. The unit has very low power drain, and the battery should last six months or more.


  • Dimensions: 1.2” Diameter x 1.4” H
  • Weight: .4 oz
  • Humidity Range:20% - 95% (relative humidity);
  • Accuracy: ±5 points from humidity % shown
  • Temperature Range: -22°F - 122°F (-30°C - 50°C);
  • Accuracy: ±1%
  • Humidity Range: 30% - 70% in 5% steps
  • LCD Display
  • Power: CR2032 Coin Battery (included); Battery Life about 6 months
  • Mounting:Clip for guitar headpiece, or Velcro (included) to install in a case, etc.

Is this product returnable? Click here for our return policy.
Is there a Factory Warranty? Click here to find Warranty Information for all of our manufacturers.
International customer? Click here for important information about ordering from outside the USA, and what to expect concerning taxes, VAT, delivery times, and more.

Check Out the FAQ Resources That Apply to This Product:
   HUMIDITY: Do you need to humidify your Upright Bass?

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