The U.S. Environmental Protection Agency (EPA) has verified this product for accurate radon measurement. NEHA & NRPP listed. This product is made in the USA!
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This IS NOT a digital read-out display device and is for printed reports only.
Reports Radon Gas Levels in as little as 4 hours and continues to read every hour and report average reading. Features NICAD rechargeable batteries. Very light and compact with carrying handle. Comes with easy to install CD software and USB cable to connect to your PC or Laptop (Windows Only Compatible) and print reports. Motion Senor and Key Lock to prevent tampering. Will continue to read up to 10 days. (Note: The EPA considers any reading under 48 hours to be invalid.)
Accurate measurements in a wide range of temperatures and humidity
Temperature Operating Range: 50 to 90 Degrees Fahrenheit
Humidity Operating Range: 0 to 80% Relative Humidity (Non-Condensing)
Internal memory
Software CD Download to your Laptop or PC (Windows Only) and print reports
Lightweight, durable and tamper-resistant
Continuous measurement of radon gas - Provides hourly and average readings
Use AC power or built in rechargeable NICAD batteries -Unaffected by power surges or fluctuations
Accurate measurements in a wide range of temperatures and relative humidity
Nominal sensitivity: 0.2 cpm/pCi/L - Favorably compares to many higher end models
Ionization chamber detector
Field worthy, sturdy construction
No moving parts - No pumps or filters to maintain or replace
Annual calibration
Minimal setup
Easy tripod attachment
Serial port for onsite printing
Tamper Resistant
Keyed operation
Keypad lockout
Instrument motion sensor
Dimensions H x W x D inches: 7 x 8 x 4.5
Weight: 2.5 lbs.
Note: The EPA considers any reading under 48 hours to be invalid.
Manufacturers Warranty: 1 Year
RADSTAR RS300 SAMPLE REPORT

RADSTAR RS300 OPERATING INSTRUCTIONS
1.0 SETTING UP THE RS300:
A. PLUG POWER ADAPTER THAT IS MARKED " RADSTAR POWER
SUPPLY" INTO ANY 110VAC OUTLET.
B. PLUG FREE END OF POWER ADAPTER INTO LEFT SIDE OF
RS300-GREEN LED SHOULD COME ON-THIS TELLS YOU THAT
THE NICAD BATTERIES ARE CHARGING. POWER CORD SHOULD
BE LEFT PLUGGED IN AT ALL TIMES DURING A RADON TEST
TO ENSURE THAT THE BATTERIES REMAIN CHARGED. IF
THERE IS NO POWER AVAILABLE, SUCH AS IN NEW
CONSTRUCTION, THE UNIT MAY BE RUN FOR A TYPICAL
48HR TEST ON THE BATTERIES ALONE AS LONG AS THE
UNIT HAS BEEN CHARGING WITH THE POWER ADAPTER OVER
NIGHT.
2.0 TURNING UNIT ON:
A. INSERT KEY INTO UNIT AND TURN IT ONE CLICK TO
THE RIGHT TO THE [KEYPAD ON] POSITION. THE UNIT
WILL BEEP.
3.0 SETTING UP THE RS300
A. ERASING STORED DATA:
PRESS AND HOLD THE [HOLD TO CLEAR] BUTTON. THERE
WILL BE AN AUDIBLE TONE COMING FROM THE UNIT
WHEN THIS IS DONE. RELEASE THE [HOLD TO CLEAR]
BUTTON AFTER THE TONE STOPS. THERE WILL BE A SHORT
“BEEP” TO SIGNIFY THAT THE MEMORY HAS BEEN ERASED.
THIS IS DONE TO ERASE ANY PRIOR TEST THAT HAS BEEN
STORED IN THE MEMORY SO THAT THE UNIT WILL TEST
FROM THE FIRST HOUR. IF THIS IS NOT DONE, THE UNIT
WILL START TESTING FROM THE HOUR THAT IT WAS SHUT
OFF ON THE LAST TEST.
4.0 MONITORING FOR RADON GAS:
A. YOU MAY BEGIN MONITORING FOR RADON GAS BY
TURNING THE KEY SWITCH TO THE [MEASURE ON]
POSITION. THE KEY MAY BE REMOVED IN THIS
POSITION TO PREVENT TAMPERING WITH THE UNIT.
B. THE RED LED NEXT TO THE "MEASURE ON" LOGO WILL
STAY ON FOR FORTY SECONDS THEN GO OUT-THIS IS A
NORMAL CONDITION. EVERY THIRTY SECONDS THERE AFTER
IN THAT HOUR THE UNIT WILL BEEP AND THE RED LED
WILL COME ON FOR ONE SECOND AND GO OUT-THIS IS A
NORMAL CONDITION.
NOTE: WHEN THE KEY IS TURNED TO THE [MEASURE ON]
POSITION TO START A NEW RADON TEST AND THE UNIT
“BEEPS”, IT MEANS THAT THE DATA NEEDS TO BE ERASED
FROM THE PRIOR TEST-SEE SECTION 3.0-A.
5.0 OBTAINING A READING FROM THE RS300:
A. ANY TIME DURING OR AFTER A TEST TURN THE
KEYSWITCH TO [KEYPAD ON] POSITION. [NOTE]:TO
CONTINUE TESTING AT ANYTIME WHEN THE KEY SWITCH HAS
BEEN TURNED TO THE [KEYPAD ON] OR THE [OFF]
POSITION, SIMPLY TURN THE KEY SWITCH TO [MEASURE ON]
POSITION. NOTE THAT THE UNIT WILL "BEEP" TO SIGNIFY
CONTINUED TESTING.
NOTE: WHEN A TEST IS CONTINUED BY GOING FROM
[KEYPAD ON] TO [MEASURE ON] THE HOUR THAT YOU WERE
TESTING IN STARTS OVER AGAIN. ALSO NOTE THAT IF YOU
TRY TO LOOK AT THE READINGS BEFORE THE FIRST HOUR
IS UP THE PC OR PRINTER WILL READ: "NO DATA" .
6.0 TRANSPORTING THE RADSTAR TO A PC OR PRINTER:
A. IF DESIRED, YOU MAY TRANSPORT THE RADSTAR TO A
PC OR PRINTER TO RETRIEVE THE DATA. TURN KEYSWITCH
TO [OFF] POSITION REMOVE KEY AND DISCONNECT POWER
SUPPLY. WHEN YOUR DESTINATION IS REACHED, SIMPLY
INSERT KEY INTO UNIT AND TURN TO [KEYPAD ON] AND
PRINT OR DOWNLOAD THE DATA.