La Crosse Technology Wireless Indoor/Outdoor Thermometer with Humidity — Black LCD, 330 ft Range, Expandable Sensors

The La Crosse Technology 308-43647-INT is a compact wireless weather station that shows indoor humidity plus indoor and outdoor temperatures on a large, easy-to-read LCD.

This compact display and matching outdoor sensor deliver fast updates from up to 330 feet, recording current readings and high/low extremes while offering simple calendar and clock functions. Built for homes that need quick climate checks, the unit supports additional temperature/humidity transmitters and an optional wireless rain gauge so you can expand monitoring as needed.

How accurate and fast are the readings?

The included TX141-Bv4 outdoor sensor transmits temperature readings reliably to the indoor display with a stated range up to 330 feet line-of-sight. The display updates quickly and logs min/max values with date and time stamps, so you can review recent extremes.

• 330 ft maximum transmission range (line-of-sight)
• Records min/max temperature with time and date
• Quick on-demand local indoor humidity reading (%RH)
• Signal strength indicator and low battery alerts

What features will I see on the display?

The receiver uses extra-large digits for temperatures and shows indoor humidity, time (12/24-hour), and a customizable calendar with month and date. It also supports auto-scrolling between multiple sensors if you add extras.

• Large 1-inch temperature digits for readability
• 12- or 24-hour clock plus month/date calendar view
• Indoor humidity percent and high/low temperature recall
• Wall-mountable or tabletop placement options

Can I expand the system with extra sensors?

Yes — the display can receive up to three additional TX141TH-BCHv3 temperature/humidity sensors and one TX145R wireless rain bucket (both sold separately). Adding sensors lets you monitor other rooms, outbuildings, or multiple outdoor locations from the same receiver.

• Supports up to 3 extra temp/humidity sensors (model specific)
• Compatible with one wireless rain gauge for precipitation tracking
• Automatic sensor auto-scroll when multiple transmitters are paired
• Visit La Crosse Technology website for full compatibility list

What power and installation details should I know?

The display and sensor each run on two AA alkaline batteries (not included) and offer flexible installation—stand it on a table or mount it to a wall. The outdoor sensor is weather resistant and designed for straightforward mounting where it can get a clear wireless signal to the indoor receiver.

• Receiver: 2 AA alkaline batteries (not included)
• Sensor: 2 AA alkaline batteries (not included)
• Weather-resistant outdoor sensor housing for durability
• Wall mountable or tabletop display with signal strength indicator

Who this is for: This La Crosse unit is ideal for homeowners, apartment dwellers, and hobby gardeners who want a straightforward, expandable way to monitor indoor comfort and outdoor temperature without complicated setup. Choose it if you value large, legible readouts, easy expansion with compatible sensors, and a compact display that fits on a shelf or mounts on a wall.