I own a Nexxtech Wireless Indoor/Outdoor Thermometer MODEL 6301026 that allows for 3 outdoor sensors. I have only one outdoor sensor and need to purchase 2 more outdoor sensors. My manual states that the Sensor Part number is #6301027. Where can I order these sensors ???

Try cleaning the outdoor thermometer transmitter unit by opening it up enough to spray compressed air (Ultra Duster or similar) on the temperature sensor. It fixed the hh.h error for me.

You probably need a new battery in you outdoor sensor.

This is a link to your manual:

AcuRite 75321A1 Instruction Manual

Dave

Before attempting to set the time, let the outdoor transmitter sync with the indoor receiver. Once that's done, you'll be able to successfully set and retain the date and time.

Try removing the batteries from both the outdoor sensor and the indoor unit. I had the same problem and fixed it by doing this.

take a look at Chaney Instruments http://diplodocs.nl/references.php

Wireless Thermometer with Sensor
Model 00735 ??

often removing the batteries in both units will reset. replace batteries in indoor unit firs, let it settle down then insert batteries into outdoor unit. There may be a button on outdoor unit to initialise the connection.

Alternatively you might find the manual here or get the instructions from their support.

http://www.orbyxelectronics.com/manuals.asp?choice1=3&choice2=14&hidPickIndex=2

Wireless Digital Thermometer GE5805WS4
Instruction Manual

Buttons and Functions
Button Function
Front of unit:
Min/Max...........displays Min or Max temps recorded
CH(Channel)......changes displayed channel
(hold 3 sec to erase)
Clear................clears memory in Min/max display
Back of unit:
C/F....................Toggle between Celsius
or Fahrenheit temperature display
Scroll.................Remote Channel Scrolling ON/OFF

INSTALLING BATTERIES
IMPORTANT:Read the section SETTING UP THE THERMOMETER before installing the batteries for the first time.

1.Remove the rear cover of thermometer. Install 2 new AA batteries. Replace battery cover.
2.Loosen 4 screws on rear battery cover of the Remote Sensor and slide battery cover off.
3.Install 2 new AA batteries .
4.After batteries are installed, the remote sensor will begin transmitting and automatically register to the Thermometer
(within range) after several minutes. However, you can also press the small button in the battery compartment (labeled Tx) to register the Remote Sensor to the Thermometer immediately
5.Replace battery cover and tighten 4 battery screws. Make ure that the battery cover is fully on and tightened to assure a watertight seal.

SETTING UP THE THERMOMETER
The thermometer can monitor up to two different Remote Sensors on two separate channels. Add-on remote sensors can be purchased separately and are compatible with the GE Wireless Thermometer/Clock (model GE5805WS4) as well as this unit. When first installing, always insert batteries into the Thermometer first, then into the Remote Sensor.
The thermometer uses random security code technology-it will learn the random code of the first Remote Sensor it detects and log in as channel 1. Channel 2 will register in the same way. NOTE: Registered channels will be erased when the batteries of the Thermometer or Remote Sensor are removed. When replacing batteries for a Remote Sensor, remember to clear the corresponding channel of the Thermometer in this way:

1.Remove batteries from the remote sensor (step 2 of installing batterie)
2.Select the channel that you would like to clear by pressing the CH button on the Thermometer until this channel number is displayed.
3.Hold the CH button for 3 seconds to clear the channel
4.Follow steps 3-5

MOUNTING THE REMOTE SENSOR AND THERMOMETER
Remote Sensor is suitable for outdoor mounting (watertight) at a range up to 100 feet from the Thermometer. HOWEVER, HE UNIT SHOULD NOT BE MOUNTED IN A POSITiON WHERE IT WILL BE SUBMERSED IN WATER, OR EXPOSED TO DIRECT SUNLIGHT, OR NEAR OTHER SOURCES OF HEAT OR COLD (I won't bother typing the rest) except for:

LOW Battery icon for the sensor will show up on either the
ch 1 or ch 2 display depending on which sensor is losing battery power.

Battery life 6 months
Temp Range Therm 32 to 122 deg F
Remote Sensor -58 to 158 deg F *
*Alkaline batteries can freeze temporarily at temps below -4 deg F. In this condition, the Remote Sensor cannot accurately transmit temp info to the Thermometer. This limits the effective minimum temp fo the Remote Sensor to -4 deg F

Operational Range....>50ft(and up to 100ft)(less interferances)

RF Channel ....refresh to "---" if no signal received in 60 minutes