Nd-9 Sound Calibrator - Metal, Manual Operation | Silver Finish, 94db & 114db Noise Levels, Compatible With 1-inch Microphones

Digital Thermo Hygrometer - Indoor/Outdoor Temperature & Humidity Monitor | Stainless Steel, LCD Display, Dual Power Supply, 12h/24h Time Modes, Everyday Alarm Function, Calendar and Max/Min Memory Features

Hygro Thermo Meter - Stainless Steel, Large LCD Display | Dual Analog/Digital Readout, Calendar with Alarm, Ideal for Home and Office

Digital Thermo Hygro Meter - Stainless Steel Body, Large Two Line LCD Display | Clock, Alarm Function, Ideal for Home and Office Use

Digital Hygrometer & Thermometer - Stainless Steel, White and Black | Dual Line LCD Display, Calendar, Hour Alarm, Max/Min Temp and Humidity, Ideal for Home and Office Use

Digital Thermo Hygrometer - Stainless Steel, White and Black | Big Digits LCD Display, Indoor Temperature and Humidity, Max & Min Records, Daily Reset Function

Halogen Leakage Detector - Stainless Steel, 22.9 x 6.5 x 6.5 cm, Green | Analog & Digital Display, Multi-Function Gas Detection, Max Sensitivity 3gr/yr, Instant Reaction Time

Portable Gas Monitor - Stainless Steel, 38.5mm x 152.0mm x 70.0mm , Green | Accurate Calibration, Max Hold Function, Analog and Digital Display, Detects CO up to 999ppm

Carbon Dioxide Gas Monitor - Stainless Steel, Dual Probe System | High Accuracy NDIR Measurement, Microprocessor Controlled with Data Hold Function

Halogen Leakage Detector - Stainless Steel, 7.75X3.20X12.00 Inch, Grey | LED Leak Size Indicators, High Efficiency Pump, Detachable Probe, Max Hold Function

Digital Vaccum Gauge Accuracy: 0.8 %