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Feature

Design:The wireless freezer thermometer includes 1 indoor temperature built-in the console and 2 remote sensors,which can monitor THREE KINDS OF TEMPERATURES and all displayed simultaneously. All time/24 hours indoor and outdoor MAX & MIN temperature records.Temperature trend arrows indicate whether it's getting warmer or colder nearby remote sensors.
Temperature Range: Outdoor -40F to 140F (-40C to 60 C) 2F Indoor 32F122F(0C to 50 C) (1C). Transmission Range Up: wireless sensors 328 ft. It is good digital alarm thermometer with wireless indoor/outdoor digital sensors.
Easy Install: The wireless temperaturer is convenient to install. 1pcs Main Unit with magnetic back and stand shelf,2pcs Transmitters with hook for hanging and stand shelf.
Alarm Settings: When indoor or oudoor temperature exceed your pre-set minimum and maximum alarm value, the thermometer will make audio alarm to remind you, allowing you to be aware if adjustments are necessary for your household,wireless indoor/outdoor with audible alarm.
Package Includes: 1pcs Main Unit + 2pcs Transmitters (batteries not included).

Description

Digital alarm thermometer equipped with sensors,
the wireless sensor have 328ft remote range,with strong signal penetration
thermometer monitor (enhanced 433 MHz), can provide the accurate measurements
for freezer,indoor or outdoor temperature.Wireless freezer thermometer with
Min/Max Display in F or C.

Feature:
Transmission range up to 328ft
Transmission frequency: 433 Mhz,Update Rate: 60 seconds
Indoor Temperature range:0~5032 ~ 122
Outdoor Temperature range:-40~60-40 ~ 140
Remote temperature range:lithium batteries: -40F to 140F
Non-lithium batteries: -4F ~ 140F

Specifications:
Weight: 210G
Power Supply: 1 Main Unit 2*AAA(not included), 2 Transmitters 4*AA (not included)
Package Includes: 1 Main Unit + 2 Transmitters(batteries not included)

Note:
don't put the transmitter directly in the rain
Don't install the reverse battery,don't put the receiver near metal
Pls kindly use high-quality batteries for main unit and transmitters,it's more better