air quality sensors
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![Dwyer AQH-20 Handheld indoor air quality meter. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/aqh_600x600_5895c5af-938a-4663-a040-eceaac0cb06b_medium.gif?v=1719998479)
AQH-20 | Handheld indoor air quality meter. | Dwyer
Brand: Dwyer
SKU: AQH-20
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![Dwyer 920 Smoke gage kit | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/920_600x600_c4e06d75-aa8d-44c7-a160-3393f61a9ec7_medium.gif?v=1719998110)
920 | Smoke gage kit | Dwyer (OBSOLETE)
Brand: Dwyer
SKU: 920
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![Resideo UV2400U5000 24V UV AIR PURIFIER WITH AIRBRIGHT ODOR ASSEMBLY. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/UV2400U5000-c1_a1660ecd-d59b-454f-a52d-88b79f6ec2eb_medium.jpg?v=1719994465)
UV2400U5000 | 24V UV AIR PURIFIER WITH AIRBRIGHT ODOR ASSEMBLY. | Resideo
Brand: Resideo
SKU: UV2400U5000
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![Resideo UC100E1030 REPLACEMENT LAMP AND HANDLE FOR 36W UV DEVICES. BLUE HANDLE. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/logo_honeywellhome_8dee909d-e647-4c85-bb70-8e2b7d05c5a1_medium.png?v=1719994468)
UC100E1030 | REPLACEMENT LAMP AND HANDLE FOR 36W UV DEVICES. BLUE HANDLE. | Resideo
Brand: Resideo
SKU: UC100E1030
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![Resideo UV2400XPCO1 AIRBRIGHT ODOR ASSEMBLY FOR 24V UV AIR PURIFIER. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/UV2400XPCO1-c2-6_medium.jpg?v=1719994459)
UV2400XPCO1 | AIRBRIGHT ODOR ASSEMBLY FOR 24V UV AIR PURIFIER. | Resideo
Brand: Resideo
SKU: UV2400XPCO1
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![Resideo UC18W1004 REPLACEMENT LAMP FOR 18W UV DEVICES. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/SnapLamp-c1_0ca43618-680d-4523-9f86-14f379c0b2f1_medium.jpg?v=1719994463)
UC18W1004 | REPLACEMENT LAMP FOR 18W UV DEVICES. | Resideo
Brand: Resideo
SKU: UC18W1004
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![Resideo UV2400U1000 24V UV AIR PURIFIER. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/UV2400U-c9-6_59650485-614b-4699-aaf0-d1ca546f0953_medium.jpg?v=1719994449)
UV2400U1000 | 24V UV AIR PURIFIER. | Resideo
Brand: Resideo
SKU: UV2400U1000
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![Resideo UV2400XBAL1 REPLACEMENT BALLAST FOR 24V UV AIR PURIFIER. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/UV2400XBAL1-c2-6_bb2852a5-e8ff-45e5-a4cc-ae4a2981111f_medium.jpg?v=1719994444)
UV2400XBAL1 | REPLACEMENT BALLAST FOR 24V UV AIR PURIFIER. | Resideo
Brand: Resideo
SKU: UV2400XBAL1
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![Honeywell TR40-CO2 TR40 WALL MODULE, TEMPERATURE, CO2, SYLK-BUS interface | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/Honeywell-logo_3daa3f18-93c5-4c9c-b8db-8b6c19d05c50_medium.png?v=1719994443)
TR40-CO2 | TR40 WALL MODULE, TEMPERATURE, CO2, SYLK-BUS interface | Honeywell
Brand: Honeywell
SKU: TR40-CO2
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![Resideo UV2400XLAM1 REPLACEMENT LAMP FOR 24V UV AIR PURIFIER. | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/UV2400XLAM1-c2-6_d872c36f-e2c3-4280-b306-5cad0066c8ff_medium.jpg?v=1719994438)
UV2400XLAM1 | REPLACEMENT LAMP FOR 24V UV AIR PURIFIER. | Resideo
Brand: Resideo
SKU: UV2400XLAM1
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![Johnson Controls NSB8MHC240-0 Temp | RH | CO2 | LCD Display | White | PIR Occ Sensor | JCI Branded | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/NSB8MHC240-0_6c0a22a6-581c-415f-9d72-3381fdb13334_medium.png?v=1719993269)
NSB8MHC240-0 | Temp | RH | CO2 | LCD Display | White | PIR Occ Sensor | JCI Branded | Johnson Controls
Brand: Johnson Controls
SKU: NSB8MHC240-0
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![Johnson Controls NSB8MHC042-0 Temp | RH | CO2 | No Display | Black | PIR Occ Sensor | JCI Branded | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/NSB8MHC042-0_b161c8c1-b3b1-4666-9294-f7335be8c14a_medium.png?v=1719993274)
NSB8MHC042-0 | Temp | RH | CO2 | No Display | Black | PIR Occ Sensor | JCI Branded | Johnson Controls
Brand: Johnson Controls
SKU: NSB8MHC042-0
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