We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Round brass thermometer with white dial, black numbers and humidity gauge

4 Inch Brass Outdoor Thermometer with Humidity

SKU CH-MK1D-DNZT3

A mechanical brass thermometer and hygrometer for outdoor spaces, reading -40 to 50 °C and 0 to 100 % RH without batteries

  • Colorbrass
  • Mechanical operation needs no batteries
  • Factory-calibrated gauge reads to ±2 °C and ±5 % RH
  • Solid brass case resists weather and adds vintage style
  • 4-inch dial shows -40 to 50 °C and 0-100 % humidity
  • Two screws mount it on any wall or window in seconds

Brass Outdoor Thermometer with Humidity

This 4-inch brass thermometer provides mechanical temperature and humidity readings without batteries. It is suited for gardeners, greenhouse owners, and anyone monitoring conditions on a patio, garage, or window. The analog dial serves both practical tracking and decorative purposes. It requires no power source to operate.

Mechanical Operation and Durability

The instrument runs entirely mechanically, so it produces no noise and draws no power during normal use. Solid brass construction resists weather exposure across seasons. Factory calibration delivers accurate readings throughout the measuring range. No electrical components mean there is nothing to recharge or replace.

Wall-Mounted Analog Gauge

Two screws are included for quick mounting on walls or window frames. The 4-inch dial with large numbers allows clear reading from a distance. It fits spaces where a wired or wireless sensor would be impractical. Buyers needing remote logging, smartphone alerts, or data export should choose a digital weather station instead.

Highlights

  • Mechanical operation needs no batteries
  • Factory-calibrated gauge reads to ±2 °C and ±5 % RH
  • Solid brass case resists weather and adds vintage style
  • 4-inch dial shows -40 to 50 °C and 0-100 % humidity
  • Two screws mount it on any wall or window in seconds

Specifications

Colorbrass

Questions about this item

How do I mount the thermometer and what step is often missed?

Use the two supplied screws to fix it to a wall or window frame; the step people skip is checking that the dial sits level so the needle moves freely.

What part will need attention after long exposure outdoors?

The brass case is weather-resistant, but the mechanical movement can drift over time; recalibrate by comparing it to a known reference and adjusting the pointer if the reading shifts beyond the stated ±2 °C or ±5 % RH.

At what point does the gauge stop giving useful readings in steady heat?

The scale ends at 50 °C (120 °F); sustained temperatures above that exceed the measuring range and the needle cannot indicate higher values.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.