Geotech Double Check Valve Disposable Bailers Size:Case of 24 Double Check GeoBailers .75" x 36" and isobutylene calibration gas should

and isobutylene calibration gas should be replaced before its expiry date to keep ppb-level readings accurate

plus 360° LED beacon

Replacement sensors are inexpensive and interchangeable with the GX-3R

which carry their own calibration and identification data — plug a sensor in and the meter recognizes it automatically

The 4R+ gas sensors are selected separately to match your target compounds — contact our team and we will build the sensor set with you

Geotech Double Check Valve Disposable Bailers Size:Case of 24 Double Check GeoBailers .75" x 36" and isobutylene calibration gas shouldGeotech Double Check Valve Disposable Bailers use two check balls one at the top and one at the bottom rather than the single bottom check found on a standard bailer. The second check valve seals the top of the bailer as it is withdrawn, so the sample column stays put instead of sloshing or draining back down the well. That means less agitation on retrieval, better sample retention, and reduced loss of volatiles. Molded from virgin polyethylene with a