GAIN EXPRESS best sellers

#1 🔥 Shore D Hardness Tester GAIN EXPRESS Shore D Hardness Tester Meter Portable 0-100HD Digital Durometer D for Rubber, Tire, Plastic, Thermal Plastic, Flooring, Bowling Ball with Large LCD Display

£31.90 on Amazon

#2 🔥 Durometer Tester Shore Gain Express Durometer Tester Shore A Hardness Tester, Rubber Tire Durometer Gauge 0~100HA Digital Hardness Meter with Large LCD Display

£31.90 on Amazon

#3 2 in 1 Digital Tachometer GAIN EXPRESS 2-in-1 Digital Tachometer, Non Contact RPM Meter Laser Photo Tachometer 3~100,000 RPM, Contact RPM Gauge 3~19999RPM Speed Meter with Data Hold, Max/Min/AVG

£29.90 on Amazon

#4 Non Contact Digital Tachometer GAIN EXPRESS Non-Contact Digital Tachometer RPM Meter Speed Gauge Laser Photo Tachometer with 2.5~99999 RPM Range, Backlit Display | Analog Bar Scale | Custom Alarms for HVAC Motor Engine Speed Tester

£21.90 on Amazon

#5 Decibel Meter Data Logger GAIN EXPRESS Decibel Meter Data Logger Digital Sound Level Meter with 43,000 Data Record & Export, SPL Noise Meter, A/C Frequency Weighting, Real-Time Measure, 3 Color Alarm, Rechargeable & Data Logging Function

£45.90 on Amazon

#6 Replacement pH Electrode GAIN EXPRESS Replacement pH Electrode with Calibration Powder, 0-14 pH Highly Accurate Probe with BNC Connector & 200cm Cable for Continuous Liquid Measurement

£19.99 on Amazon

#7 Manometer Professional GAIN EXPRESS Manometer, Professional Air Pressure Meter, Digital Manometer Gas Pressure Gauge Tester, 11 Units with Backlight, Suitable for Differential Pressure of 1-2 Pipes Air Condition System Measurement

£35.99 on Amazon

#8 CO2 Meter Handheld CO2 GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter

£135.99 on Amazon

#9 Decibel Meter Sound Level GAIN EXPRESS Decibel Meter Sound Level Tester Datalogger with Visual Alarm, 43,000 Data Record SPL Monitor Noise Reader Colored Screen Display PC Connection for Home, Factory, Classroom etc

£45.90 on Amazon

#10 🔥 Pensize ORP Tester 1200~1200mV GAIN EXPRESS Pensize ORP Tester -1200~1200mV with ORP Calibration Buffer Powder for Water Quality Measurement ±2mV High Accuracy Oxidation Reduction Potential Meter

£38.90 on Amazon

#11 Decibel Meter Data Logger GAIN EXPRESS Decibel Meter Data Logger, Digital Sound Level Meter with Recording, dB Meter 30~130dB, 31,000 Data, 3Color Light Alarm, USB Rechargeable SPL Meter for Home, Classroom, Office, Neighbor, Industrial

£38.90 on Amazon

#12 🔥 🆕 WiFi Smart Water Quality GAIN EXPRESS WiFi Smart Water Quality Tester pH, EC, and Temperature Monitor Continuous Online Monitoring Tester with LCD Display, App Alerts, Real-Time Data, Replaceable Probes for Hydroponics, Aquariums

£105.90 on Amazon

#13 🔥 ORP Oxidation Reduction GAIN EXPRESS ORP Oxidation-Reduction Potential REDOX 256mV Calibration Solution 30ml

£18.90 on Amazon

#14 Digital Sound Level Meter GAIN EXPRESS Digital Sound Level Meter 30~130dB Noise Measuring Decibel Meter 13" HD Wide-Screen Display Wall Mounted with Data Logging Function and Noise Alarm

£109 on Amazon

#15 Digital 18mm Thickness GAIN EXPRESS Digital 18mm Thickness Window Tint Meter 100% Range Glass Plastic Visual Light Transmission with Sensor

£126.90 on Amazon

#16 🔥 360° Digital Long Level GAIN EXPRESS 360° Digital Long Level Inclinometer Angle Finder Ruler Protractor 42cm with Magnets/Backlight/Vertical & Horizontal Spirit Bubble for Construction Carpenter Craftsman Renovation Home Professional

£32.90 on Amazon

#17 CO2 Meter Handheld CO2 GAIN EXPRESS CO2 Meter Handheld CO2 Monitor 9999ppm Measuring Range Carbon Dioxide Detector NDIR Sensor Air Quality Temperature Humidity Meter

£134.90 on Amazon

#18 Quantum PAR Meter for GAIN EXPRESS Quantum PAR Meter for LED Grow Light Full Spectrum PPFD Meter High Precision Quantum Sensor, Light Meter for Plants, Greenhouse and Farming Lux Meter Tester 400-700nm

£89.90 on Amazon

#19 Salinity & Temp Meter GAIN EXPRESS Salinity & Temp Meter Pen Type Salt Water Quality Tester ATC NaCl, 9999 ppm / 100.0ppt/ 10% / 0.95-1.08 SG Measurement Units 4-in-1 Checker for Saltwater Aquarium Pond Food Pool Cooking Seawater

£36.90 on Amazon

#20 PH & Temperature 2 in 1 GAIN EXPRESS PH & Temperature 2-in-1 Continuous Monitor Meter w/Backlight Replaceable Electrode, Dual Display 0.00~14.00pH °C/ °F Water Quality Monitoring Kit, for Aquariums Hydroponics Pools Tanks Spa

£37.90 on Amazon