| 421 | Lutron DO-5509 Pocket Dissolved Oxygen Meter | |
| 422 | Lutron DM-9972SD Bench Professional Multimeter + LCR Meter, SD Card | |
| 423 | Lutron DM-9971SD Bench Professional Multimeter SD Card | |
| 424 | Lutron DM-9962SD Multimeter + LCR Meter, 6000 Counts, SD Card | |
| 425 | Lutron DM-9961 CATIII 1000V True RMS DMM, auto range | |
| 426 | Lutron DM-9960 CATIII 1000V Auto Range DMM, bar graph, RS-232 | |
| 427 | Lutron DI-6400 Insulation Tester + DMM | |
| 428 | Lutron DI-5300A Insulation Tester 2000Mohm | |
| 429 | Lutron DI-6300 Insulation Tester | |
| 430 | Lutron PM-1064SD Air Quality Monitor/Recorder, PM2.5, CO2, %RH, Temp., Barometer, SD Card | |
| 431 | Lutron PM-1063SD Air Quality Monitor/Recorder, PM2.5, %RH, Temp. SD Card | |
| 432 | Lutron PM-1053 Air Quality Monitor/Recorder, PM2.5, %RH, Temp., RS232/USB | |
| 433 | Lutron O2H-9903SD O2 Meter + Humidity/Temp., SD Card | |
| 434 | Lutron GS-5800+GS-400+EA-100 Ultrasonic Leakage Detector | |
| 435 | Lutron PO2-250 Oxygen Meter, Pen type | |
| 436 | Lutron PCO-350 CO Meter, Pen type | |
| 437 | Lutron MCH-383SD CO2 Meter + Humidity/Temp., SD Card | |
| 438 | Lutron GCO-2008 CO Meter | |
| 439 | Lutron GC-2028 CO2 Meter + Temperature | |
| 440 | Lutron GCH-2018 CO2 Meter + Humidity/Temp. | |
| 441 | Lutron COH-9905SD CO2 Meter + Humidity/Temp., SD Card | |
| 442 | Lutron CO2-9914SD CO2 Meter + Humidity/Temp., SD Card (One Probe) | |
| 443 | Lutron CO2-9904SD CO2 Meter + Humidity/Temp., SD Card | |
| 444 | Lutron AQ-9912SD Air Quality Meter, SD Card (6in1-CO2, CO, O2, Humidity, Dew point, Temp.) | |
| 445 | Lutron AQ-9901SD Air Quality Meter, SD Card (6in1-CO2, CO, O2, Humidity, Dew point, Temp.) | |
| 446 | Lutron PC-6011SD Clamp Power Analyzer, SD Card | |
| 447 | Lutron PC-6010 Power Clamp, High Power | |
| 448 | Lutron PC-6009 Power Clamp, Low Power | |
| 449 | Lutron DL-9954 ACA Leakage Tester, Auto Range | |
| 450 | Lutron CMF-3200 Flexible Clamp Meter | |