Riken Keiki Gas Detector with H2Se ESU-23SD Sensor (GD-70D)

Cosmos CDS-7 Lot of 17 Gas Detector Sensors for H2S / H2Se / NH3 - Used Sensors show an expiration date of 2010 Lot consists of the following Sensors: Code: 07HS40, Gas: H2S, F.S: 50ppm...