Thermo Scientific 951204 Ammonia Membranes (Pack of 20)

Thermo Scientific Orion 951204 gas-sensing membrane is intended for use with the 9512BNWP Ammonia ion selective electrode. Loose membranes - Pack of 20:

Fresh membranes provide optimum performance with gas-sensing ion selective electrodes. Ammonia electrodes require different membranes if using standard electrode or high performance ammonia electrode.