Long Range Indoor/Outdoor Thermometer/Hygrometer in Black (MRI-822MX)


Availability: 12 in stock

Long Distance Wireless Indoor/Outdoor Thermometer/Hygrometer (MRI-822MX)

Indoor/Outdoor temperature and humidity (MRI-822MX)
Large, easy to read LED display with blue backlight
Up to 426′ (130m) maximum range in an open area (using lithium batteries)
Overall distance is subject to obstructions, temperature and battery
Temperature display in °C or °F
Min/Max temp & humidity memory and temp alert on all three channels
Outdoor temperature range -22°F to +140°F (-30°C to +70°C)
Includes one RS-MX transmitter, two additional channels available


Link to Tech Support

TempMinder MRI-822 User Manual:

TempMinder MRI-822 English PDF
TempMinder MRI-822 French PDF

Weight 1.3 kg
Dimensions 1.5 × 10.5 × 8.5 cm
Warranty Infomation

One Year Warranty

Product UPC/EAN


2 reviews for Long Range Indoor/Outdoor Thermometer/Hygrometer in Black (MRI-822MX)

  1. Jess Lattin

    ordered this unit with two extra transmitters…only two of the three send a signal to the receiver. I contacted the company with no response…the two that do work seem to be fairly accurate.

    Minder Research Response: Jess Lattin, please contact us at (772) 463-6522 so we may assist you with your issue.

  2. Anonymous

    Works great! ordered 2 extra transmitters with it. One is in my greenhouse, one is in my chicken barn with the new chicks. The low temp alarm saved my greenhouse as it let me know that the heater had stopped working. Saved my weeks of work with the seedlings from being lost to the freezing temps.
    I hope this product lasts as well as it works because I am loving it so far!

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