Gas concentration detection acquisition module current type smoke sensor RS485 smoke detection transmitter probe
![Gas concentration detection acquisition module current type smoke sensor RS485 smoke detection transmitter probe](http://ae04.alicdn.com/kf/H3a216c2dd47f4a9eaf82088ebf8bfe86t.jpg)
sku: 4000296874715
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$126.96
Shipping from: China
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