NH3 Sensor MQ137 Transmitter NH3 Chicken House Public Toilet Pig Farm Detection 4-20mA Output RS485

NH3 Sensor MQ137 Transmitter NH3 Chicken House Public Toilet Pig Farm Detection 4-20mA Output RS485
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sku: 1005003945873203
$75.00-12%
$66.00
Shipping from: China
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