TA RADON MONITOR COMPARISION CHART
Feature
PTG-7RN
TBM-IC-RN
Lower level of
detection
5 x 10-11 uC1/ml
4 x 10-9 uC1/ml
(2 Bq/m3)
(4PCi/l)(148 Bq/m3)
Measurement time
required
1 hour
10 minutes
Accuracy of mid-range
measurement +/- 10% or
better
+/- 20% or
better
Lower level of detection
2 x 10-9 uC1/ml
4 x 10-9 uC1/ml
(74 Bq/m3)
(4pCi/l) (148
Bq/m3)
Measurement time
required
1 minute
10 minutes
Accuracy of mid-range
measurement +/- 10% or
better
+/- 20%
Lower level of detection
1
x 10-8 uC1/ml
1 x 10-8
uC1/ml
(1000 Bq/m3)
(10pCi/l) (1000 Bq/m3)
Measurement time
required
5 seconds
5 seconds
Accuracy of mid-range
measurement
+/- 10%
+/- 40%
TECHNOLOGY
PTG-7RN
TBM-IC-RN
Sensor
Flow-thru Ion
Chamber
Flow-thru Ion
Chamber
Volume
2000
milliLiters
300 milliLiters
Background chamber
Yes
No
Portable
Yes
Yes
Fixed use
OK
No
Power
Battery or
AC
Battery Only
Display
6 digit
LED
6 digit LED
Alarm
Yes
No
Data output
Serial
RS-232
No
Pump
Built-in
Optional
Draws Air from
Glove-box, Smoke-stack
Room-air
Or Room-air
Optional "sniffer hose"