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Four small black rectangular digital meters with LCD screens showing temperature and humidity readings

Taylor 4-Pack Mini Digital Thermometer Hygrometer Fahrenheit Black gcm-131

SKU CH-SP13-XA0BG

Four compact gauges track temperature from -58 to 158 °F and humidity from 10 to 99 %RH with ±2 °F and ±5 %RH accuracy

  • Battery runtimeLR44
  • Measuring range-58 degrees fahrenheit to 158 degrees fahrenheit
  • Operating conditions-58 degrees fahrenheit / 158 degrees fahrenheit
  • Product colorBlack
  • Product dimensions14.33 in W × 12.83 in H × 9.06 in D
  • Product weight0.01 oz
  • Monitors temperature and humidity every 10 seconds
  • Measures from -58 to 158 Fahrenheit with ±2°F accuracy
  • Tracks humidity 10% to 99% RH with ±5% RH tolerance
  • Compact 1.89 x 1.13 x .6 inch size fits jars and cases
  • Includes 4 units with LR44 batteries for 12-18 month operation

Four-pack monitoring

This set supplies four identical mini digital thermometer hygrometers for simultaneous tracking in several small spaces. Each unit measures temperature in Fahrenheit from -58 to 158 and humidity from 10% to 99% RH. The compact footprint of 1.89 by 1.13 by .6 inches suits jars, reptile tanks, guitar cases, greenhouses and similar confined areas. Readings refresh every 10 seconds.

Range and resolution

Temperature accuracy is ±2 degrees across the full -58 to 158 span while humidity accuracy is ±5% RH across 10% to 99%. The 10-second sampling interval gives near real-time awareness of gradual shifts but cannot capture rapid spikes between samples. No backlight is fitted so the LCD requires ambient light to be read. The display shows only Fahrenheit units.

Build and power

Each meter weighs .01 ounces and ships with an installed LR44 button cell plus a spare, providing 12 to 18 months of operation per battery. The tiny housing has no mounting hardware; placement relies on flat surfaces or adhesive not included. Four backup cells are included in the pack so all units can be refreshed at once when the originals expire.

How it compares

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

Price $19.99
Cheaper than about 65% of the 925 comparable items (median $23.99).

Specifications

Product
Brand nameTaylor
Part numberGcm-131
Product colorBlack
Power
Battery runtimeLR44
Size & build
Product dimensions14.33 in W × 12.83 in H × 9.06 in D
Product weight0.01 oz
Environment & compliance
Operating conditions-58 degrees fahrenheit / 158 degrees fahrenheit
More details
Measuring range-58 degrees fahrenheit to 158 degrees fahrenheit

Questions about this item

Will these 1.89" x 1.13" x .6" units fit inside my existing guitar case or jar without crowding?

Each meter measures 1.89 x 1.13 x .6 inches, so the mini size slides into tight spaces like guitar cases, jars or reptile tanks while leaving room for your other gear.

How can I verify the ±2°F and ±5%RH accuracy once I place the four meters in different spots?

Let all four units sit together for ten minutes; readings should stay within two degrees Fahrenheit and five percent RH of each other, confirming they meet the stated tolerances.

The pack lists four meters and four backup LR44 cells — are the installed batteries already inside each unit?

Yes, every meter ships with an LR44 already fitted, plus four spare LR44 buttons are included so you can swap cells after 12 to 18 months of use.

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