Reference only — this item is no longer available. This product has been discontinued and cannot be ordered. We keep the page online so the specifications and documentation stay available to anyone still running the equipment. Current replacements are listed further down.

Discontinued

Sun Nuclear Electronic Continuous Radon Monitor (91027CRM)

Reference only — not for sale

Model	91027CRM
Manufacturer	Sun Nuclear
Category	Radon Testing
Status	Discontinued

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Product details (archived)

The information below is retained for reference only. This item is discontinued and cannot be ordered.

THIS ITEM IS NO LONGER AVAILABLE.

The following links, images and information remain available for informational purposes only.

The Model 91027 provides both a digital display of the measured value as well as a report that may be obtained from either a printer or a computer. PC software, suitable for printing reports, is included with the instrument. A compact printer (P/N 020030) that plugs into the 91027 Monitor is available if an on-site report is required. (Data is stored in the Radon Monitor and can be printed at a later time.)

The Model 91027 is operated using line power (110 VAC). The instrument contains a 9 volt battery which provides backup power in the event of a power outage during a test. The Professional Continuous Radon Monitor employs internal sensors to detect and report movement during a test. The testing is not interrupted if tampering is detected, but the tampering is noted on the final report. The Model 91027 does not contain any replaceable or “consumable” parts. The instrument is completely reusable; simply clear the memory and it is ready for a new test.

Power Supply: Transformer converts 120 VAC to 12 VDC. Optional 220 VAC power supply available.
Sensitivity: 2.5 counts per hour per PicoCurie per liter (pCi/L).
Measurement Range: 0.1 to 999 (pCi/L).
Operating Range: 45 to 95° F
Accuracy: ±25% or 1 pCi/L, whichever is greater after 24 hours.
Detector: Diffused-junction photodiode.
Measurement Intervals: 1 hour
Data Port: RS-232 9 pin D connector allows printer data to be sent to PC
Battery Backup: One 9 V alkaline battery supplies 24 hour operation. LED low battery indicator
Tilt Switch: Disturbance Detector
Weight: 2 lbs
Size: 8" x 4.7" x 2.5"
Display: 3 digit LED display
Displayed Values:
- Long-term average- Accumulates until device is reset.
- Short-term average- rolling 12 hour average
Key Lock: Inhibits tampering with the device.

Supplied with:

radon monitor
Serial cable
Windows Software PC software (Note: Using the radon software with newer laptops will possibly require a USB to Serial adapter cable)