| 421 | Lutron GCO-2008 CO Meter | |
| 422 | Lutron GC-2028 CO2 Meter + Temperature | |
| 423 | Lutron GCH-2018 CO2 Meter + Humidity/Temp. | |
| 424 | Lutron COH-9905SD CO2 Meter + Humidity/Temp., SD Card | |
| 425 | Lutron CO2-9914SD CO2 Meter + Humidity/Temp., SD Card (One Probe) | |
| 426 | Lutron CO2-9904SD CO2 Meter + Humidity/Temp., SD Card | |
| 427 | Lutron AQ-9912SD Air Quality Meter, SD Card (6in1-CO2, CO, O2, Humidity, Dew point, Temp.) | |
| 428 | Lutron AQ-9901SD Air Quality Meter, SD Card (6in1-CO2, CO, O2, Humidity, Dew point, Temp.) | |
| 429 | Lutron PC-6011SD Clamp Power Analyzer, SD Card | |
| 430 | Lutron PC-6010 Power Clamp, High Power | |
| 431 | Lutron PC-6009 Power Clamp, Low Power | |
| 432 | Lutron DL-9954 ACA Leakage Tester, Auto Range | |
| 433 | Lutron CMF-3200 Flexible Clamp Meter | |
| 434 | Lutron CM-9940 Mini 600A AC/DC Clamp Meter | |
| 435 | Lutron CM-9930 True RMS 2000A AC/DC Clamp Meter + DMM | |
| 436 | Lutron CM-6158 2000A DCA/ACA Clamp Meter | |
| 437 | Lutron CM-6155C 1000A DCA/ACA Clamp Meter + Temp. | |
| 438 | Lutron CM-6146 1000A DCA/ACA Clamp Meter | |
| 439 | Lutron CM-6010SD True RMS DCA/ACA Clamp Meter, SD Card | |
| 440 | Lutron TU-2016 Turbidity Meter | |
| 441 | Lutron CL-2006 Chlorine Meter | |
| 442 | Lutron YK-43SD Conductivity Meter | |
| 443 | Lutron PCD-432 Conductivity Meter, Separate Probe, Pen Type | |
| 444 | Lutron PCD-431 Pen Type All-In-One Pocket Conductivity/TDS Meter | |
| 445 | Lutron CD-4319SD Water Hardness, Pure Water Meter, TDS, Salt, SD Card | |
| 446 | Lutron CD-4318SD Precision Conductivity Meter, TDS, Salt, SD Card | |
| 447 | Lutron CD-4317SD Conductivity Meter, TDS, Salt CD-4317SD, SD Card | |
| 448 | Lutron CD-4322 Conductivity Meter, ATC, Dual Displays | |
| 449 | Lutron CD-4307SD Conductivity Meter, TDS, Salt, SD Card | |
| 450 | Lutron CD-4306 Conductivity Meter, Wide Range | |