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White rectangular digital thermometer hygrometer with LCD display and retractable stand

MARATHON BA030018 Digital Thermometer Hygrometer White

SKU CH-GJKB-6CH3K

Monitors indoor temperature from -10 °C to 50 °C and humidity from 20 % to 99 % with a comfort indicator and 24-hour memory

  • Measuring range-10 degrees celsius to 122 degrees fahrenheit
  • Operating conditions-10 degrees celsius / 122 degrees fahrenheit
  • Storage conditions-10 degrees celsius to 122 degrees fahrenheit
  • Product colorStainless Steel/Yellow
  • Product dimensions11.51 cm × 3.51 cm × 10.49 cm
  • Comfort indicator shows indoor climate at a glance
  • 24-hour max/min records track temperature and humidity trends
  • Measures -10°C to 50°C and 20% to 99% humidity
  • Retractable stand and wall-mount hole for flexible placement
  • Two AAA batteries included for immediate use

Indoor Climate Monitor

The Marathon BA030018 digital thermometer hygrometer tracks indoor temperature and relative humidity. It suits homeowners, parents and hobbyists who need a simple comfort check for living spaces, nurseries, greenhouses or wine cellars. The unit is not for users who require remote alerts, data logging beyond 24 hours or outdoor weather monitoring.

Measurement Range Decides Fit

The sensor covers -10 °C to 50 °C (14 °F to 122 °F) and 20 % to 99 % relative humidity. If your environment falls outside these limits, such as a freezer or a high-heat sauna, the device will not read accurately. The comfort indicator flags dry, comfortable or wet zones at a glance.

Simple Placement, Common Pitfalls

A retractable stand and a wall-mount hole let you set it on a shelf or hang it in seconds. Two AAA batteries are included so it works straight out of the box. The main issues are placing it near vents, direct sun or steam sources, which skew both temperature and humidity readings.

How it compares

Measured against everything we stock in Digital Thermometers & Hygrometers, at today’s prices. Recalculated every night.

Price $23.99
Typical for this category: the median of 925 items is $23.99.

Specifications

Product
Brand nameMARATHON
Part numberBA030018
Product colorStainless Steel/Yellow
Size & build
Product dimensions11.51 cm × 3.51 cm × 10.49 cm
Environment & compliance
Operating conditions-10 degrees celsius / 122 degrees fahrenheit
Storage conditions-10 degrees celsius to 122 degrees fahrenheit
More details
Measuring range-10 degrees celsius to 122 degrees fahrenheit

Questions about this item

What does the -10 °C to +50 °C temperature range mean for everyday indoor use?

It covers typical home environments from a cold basement at -10 °C (14 °F) up to a warm room at +50 °C (122 °F), so the thermometer will read accurately in most indoor spaces.

How does the 20 % to 99 % humidity range limit what I can monitor?

The sensor reports relative humidity between 20 % and 99 %; conditions drier than 20 % or above 99 % will fall outside the measurable span.

What mounting options come with the 11.51 cm × 3.51 cm × 10.49 cm unit?

A retractable stand for tabletop use and a wall-mount hole for vertical installation are both built into the case.

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