Xetron HVAC Refrigerant Leak Detector with UV LED,Automotive AC [R134A R410A R22 R1234YF] Freon Sniff Halogen Gas Leak Detector, 6 Adjustable Sensitivity, CFCs HCFCs HFCs HFOs CLD-100UV

$35.95

Elitech WJL-6000 Freon Leak Detector Halogen Refrigerant Gas Leak Detector HVAC Tester AC Sniffer R22 R410A R134A 1234YF

$24.99

Xetron[Flagship] Infrared Refrigerant Leak Detector A2L Compatible [R1234YF R134A R410A R22], HVAC Anti-Interference 10-Yr. Sensor Automotive AC Mute Rechargeable Freon Sniffer with an Extended 12inch

$18.81

Elitech PPM Refrigerant Leak Detector, Locate Leakage, Pinpoint and Hunting Mode, OTA, APP, METRUM

$22.27

CMTOOL Refrigerant Leak Detector HVAC Automotive Freon Leak Detector Tool CFCs HCFCs HFCs Halogen Gas Leak Detector Finder for R134A R410A R22 R404A R407C 134A AZ-50 HP62 MP39 Car AC Leak Detector Kit

$15.29

Inficon Compass, Refrigerant Leak Detector, 717-202-G1

$65.89

WJL-6000 HVAC AC Refrigerant Leak Detector for Halogen Freon R22 R410a R134a R290 R600a R1234yf CFCs HCFCs HFCs HC HFO with Buzzer

$42.99

allsun Pro Ultrasonic Leak Detector Kit,Electronic Stethoscope Ultrasonic Sound Detectors Refrigerant, Air,Gas and Liquid Leaks,Auto Leakage Tester Diagnosis Tool Noise Detection

$129

GoveeLife Hygrometer Thermometer H5104, Bluetooth Room Temperature Monitor with APP Alert and 2 Years Date Storage Export, Remote LCD Digital Hygrometer Indoor Humidity Meter, Greenhouse, Humidor, RV

$16.31

VACLAB Professional Air Quality Monitor, Indoor Portable CO2, TVOC, HCHO, Humidity and Temperature Detector for Home, Office or School, Air Quality Tester, Confined Space Air Monitor

$59.99

allsun Pro Ultrasonic Leak Detector& Transmitter HVAC Automotive Electronic Stethoscope Engine Diagnostic Machine Noise Monitor 36-44KHz Air Gas Water Dust Leak Pressure Vacuum Tool

$49.99

Inficon Inficon Refrigerant Leak Detector, Model:705-202-G1

$493.85

Govee WiFi Thermometer Hygrometer H5179, Smart Humidity Temperature Sensor with App Notification Alert, 2 Years Free Data Storage Export, Remote Monitor for Room Greenhouse Incubator Wine Cellar

$37.37

REALHUNLEE Auto Air Conditioner Leak Detector Tool Flashlight Oil AC UV Dye Leak Test Detection Kit Pro 68 LED Flashlight with UV Protective Glasses

$9.99

Interdynamics Certified A/C Pro Car Air Conditioner Leak Detector Dye, Leak Detection UV Dye for Cars and Radiators, 1 Oz

$8.1

Elitech Wireless Digital Manifold Gauge Set Data Logging Refrigerant HVAC Gauges with Hoses, Temperature Clamps, LMG-10W

$164.62

X-Sense Wi-Fi Hygrometer Indoor Humidity, Smart Hygrometer Thermometer with Remote Monitoring & App Control, Wi-Fi Temperature Sensor for Room Temperature Monitoring, Humidor, Greenhouse, Model STH54

$49.99

Natural Gas Detector, TopTes PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Gas Leak Sources Like Methane,Propane for Home (Includes Battery x2)-Orange

$21.99

GoveeLife Water Leak Detectors 5 Pack, 100dB Adjustable Audio Alarm and Leak and Drip Alerts, Detector for Home, Bedrooms, Basement, Warehouse, Cabin/RV

$20.99

Refrigeration Technologies Big Blu Micro Leak Detector 1 Gal. RT100G Viper

$129

Power Failure Alarm with LED Indicator,80-110dB Adjustable Freezer Alarm with 7Siren,Power Loss Alarm with Voltage Test,Power Outage Alarm Perfect for GFI/GFCI Trips,Refrigerator,CPAP,Aquarium Air Pum

$29.95

Water Leak Detectors 5 Pack, 120dB Loud Water Leak Sensor, Fansitc Wireless Water Leakage Alarm, IP66 Waterproof Water Alarm Sensor Device for Home Bathroom, Sink, Laundry, Window, Floods

$19.99

TopTes PT199 Natural Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Sources Like Methane, Propane for Home(Includes Battery x2)-Orange

$132.93

TopTes PT210S Gas Leak Detector, Natural Gas Detector with 4-inch Probe, Propane Leak Detector Locating Combustible Gases Like Natural Gas, Methane for Home, Measures%LEL (Incl. Batteries) - Orange

$96.14

Elitech Digital Temperature Humidity Data Logger Medical Refrigerator Thermometer Vaccine Fridge Temperature Monitor, RC-4HC

$32.45

Refrigeration Technologies-RT100S Big Blu Micro Leak Detector 1 Qt

$8.74

Aquastrong 115V 70GPH HAVC Condensate Pump,Automatic Safety Switch,AC Condensate Removal for Air Conditioner, Furnace,Dehumidifier, 3.3' Power Cord

$27.99

TopTes PT760 Rechargeable Natural Gas Detector, Gas Leak Detector with 12-inch Extendable Probe,%LEL Propane Leak Detector with Built-in Flashlight for Methane, Butane, Combustible Gas for Home, RV

$29.9

Ozone Gas Detector by Forensics | High Range 0-100ppm O3 | USA NIST Calibration | USB Recharge | Adjustable Alarms |

$49.99

Etekcity Infrared Thermometer Laser Temperature Gun 774, Digital IR Meat Thermometer for Cooking, Candy, Food, Pizza Oven Grill Accessories, Heat Gun for Outdoor Indoor Pool Surface Temp

$25

11-in-1 Air Quality Monitor, Indoor CO2/VOC/AQI/PM2.5/Thermometer/Humidity Monitor, Portable Smart Carbon Monoxide Detectors for Home Office Outdoor, Battery Powered

$15.99

Refrigeration Technologies Big Blu Micro Leak Detector 1 Gal, Blue (RT100G)

$229.45

EDISHINE Motion Sensor, Automatic Dusk to Dawn, 120V AC Motion PIR Sensor, Adjustable Delay Time & Detection Range, 180 Degree Replacement Motion Security Floodlight Sensor, Black, UL Listed

$39.99

Freshliance USB Temperature Humidity Data Logger, Reuseable Temperature Humidity Recorder with PDF or CSV Report, Digital Refrigerator Thermometer Hygrometer for 35000 Points High Accuracy, TagPlus-TH

$65.99

GoveeLife WiFi Water Ieak Detector 2 for Home, Smart Water Ieak Sensor 4 Pack with 100dB Adjustable Alarm and App Alerts, Wireless Detector with 1312 ft Transmission for Basement, Kitchen, Bathroom

$49.99

Klein Tools CL320KIT HVAC Kit for HVAC Testing; Digital Clamp Meter, Non-Contact Voltage Tester, and Infrared/Probe Thermometer

$57.99

Pinless Moisture Meter,MESITOOL Wall Moisture Reader for Water Leak Detector,Infrared Water Leak Detector for Lumber Humidity Tester

$26.99

Techamor Y401 Natural Propane Gas Detector, Home Gas Alarm and Monitor, Leak Alarm for LNG, LPG, Methane, Coal Gas Detection in Kitchen, Home, Camper (1, White)

$39.99

Natural Gas Detector, Gas Leak Detector, Household Propane Leak Detector for Home Kitchen

$50.21

Refrigeration Technologies RT150S Big Blu Subzero Micro Leak Detector 1Qt Viper (1)

$999

GoveeLife WiFi Freezer Thermometer Alarm 2 Pack, Remote App Alert with Anti-False, Wireless Smart Temperature Monitor Sensor, 2 Years Free Data Export, Digital Thermometer for Refrigerator Pool Tub

$5.99

Ultrasonic Leak Detector with Headphones, 40KHz ±2KHz Air Leak Detector, Steam Pipe Leak Detector, Automotive Noise Finder, Adjustable Sensitivity, 420MM Probe, High Sensitive Sensor

$229.45

Fuse Popper HVAC, Briidea HVAC Troubleshooting Tools with Light, Used to Quickly Locate Shorts in 24 VAC Circuits, Reusable

$13.99

EDISHINE Motion Sensor, Automatic Dusk to Dawn, 120V AC Motion PIR Sensor, Adjustable Delay Time & Detection Range, 180 Degree Replacement Motion Security Floodlight Sensor, White, UL Listed

$39.99

HVAC Motor Contactor, Furnace Replacement Relays, for Air Conditioner, Heat Pump, Refrigeration Systems (2P 40A 24V)

$13.85

Inficon D-TEK 3 Refrigerant Leak Detector

$18.97

Etekcity Infrared Thermometer Temperature Gun for Pool Refrigerator, -58°F to 1130°F, Digital Heat Gun for Cooking Meat Pizza Oven, Laser Tool for Indoor Outdoor Candy, Griddle, Yellow

$9.99

Govee WiFi Thermometer Hygrometer H5103, Indoor Bluetooth Temperature Humidity Sensor with Electronic Ink Display, App Notification Alert, Free Data Storage Export, Digital Remote Monitor for Bedroom

$9.99

Govee WiFi Hygrometer Thermometer Sensor 3 Pack, Indoor Wireless Smart Temperature Humidity Monitor with Remote App Notification Alert, 2 Years Free Data Storage Export, for Home, Greenhouse

$49.99

SwitchBot IP65 Indoor Outdoor Hygrometer Thermometer Wireless, 394ft Bluetooth Range, Refrigerator Thermometer, Dewpoint/VPD/Absolute Humidity Sensor, Free Data Storage Export, 2 Years Battery Life

$69.99

allsun Ultrasonic Leak Detector & Transmitter Finder 40KHz Air Gas Water Dust Leak Pressure Headphone Gas Liquid Leakage Monitor Accessory Kit LED Indication Ultrasonic Leak Finder Tool

$123.79

Elitech Wireless Digital Data Logger Remote Real-Time Temperature Humidity Monitor Cloud Data Storage WiFi Communication External Temp&Humi Probe, RCW-800W-THE(-40~176℉) with Basic Cloud Service

$239.98

Govee Hygrometer Thermometer H5075, Bluetooth Indoor Room Temperature Monitor Greenhouse Thermometer with Remote App Control, Notification Alerts, 2 Years Data Storage Export,LCD

$5.98

Fieldpiece DR82 - Battery Powered Infrared Refrigerant Leak Detector

$29.78

Gas Leak Detector, TECHAMOR PT202 Portable Natural Gas Leak Alarm Locate Gas Leaks of Combustible Gases Like Methane, LPG, LNG, Fuel, Sewer Gas for Home(Includes Battery x2 & Carrying Pouch) (Orange)

$19.99

X-Sense Wi-Fi Water Leak Detector, Smart Water Sensor Alarm, Water Detector Alarm with 1700 ft Transmission Range for Kitchens, Basements, Bathrooms, 3 Water Detectors & 1 Base Station, Model SWS54

$59.99

Portable Gas Detector & Alarm, Koabbit Handheld Natural & Propane Sniffer Detector for Home,Outdoor,RV, Combustible Gas Leak Detector for Propane,LNG, LPG, Methane

$33.98

Gas Leak Detector; VITITE Propane and Natural Gas Detector; Mini Portable Gas Alarm to Locate Combustible Gas Leak Sources for Home and RV (Includes 2 Batteries & Carrying Pouch) - Orange

$29.99

X-Sense Smart Carbon Monoxide Detector, Wi-Fi CO Detector, Real-Time Push Notifications via X-Sense Home Security App, Replaceable Battery, Optional 24/7 Professional Monitoring Service, XC04-WX

$19.39

Carbon Monoxide Detector,CO Gas Monitor Alarm Detector,CO Sensor with LED Digital Display for Home,Depot,Battery Powered

$1.49