Hobbes 256850 NETmapper Network Cable Tester is a unique and versatile tool for professional network administrators to quickly verify network connectivity and get essential information from the entire network for troubleshooting. Hobbes 256850 NETmapper is both an online active network tester and an offline cable checker. It can also check for polarity and voltage of telephone lines.

Byte Brothers POE1000IL PoE Ethernet Cable Inline Tester is an advanced device for measuring Power Over Ethernet to ensure proper voltages are transferred over LAN cables to ensure proper power.

Extech RF12 Portable Brix Refractometer with ATC measures the brix concentration in lubricants and cutting fluids.

Extech RF11 Portable Sucrose Brix Refractometer with ATC measures the concentration of sugar in fruit juice and industrial fluids.

Extech RF40 Portable Battery Coolant/Glycol Refractometer with ATC (°F) measures the freezing point of coolants and concentration of Ethylene/Propylene Glycol.

Extech RF41 Portable Battery Coolant/Glycol Refractometer with ATC (°C) measures the freezing point of coolants and concentration of Ethylene/Propylene Glycol.

Extech RF20 Portable Salinity Refractometer measures the concentration of dissolved salt in fluids.

Wohler E 330 Combustion Analyzer Standard Set (Mfg. part no. 9300) is the industries most compact analyzer and it delivers outstanding performance for residential and light commercial applications. Made in Germany. Free ground shipping within continental US.

Special Sale! Wohler E 335 Combustion Analyzer Standard Set (Mfg. part 9301) combines traditional probe and hose assembly configuration with compact sleek analyser design. Delivers outstanding performance for residential and light commercial applications with remote readout capability. Made in Germany. Free ground shipping within continental US.

Wohler E 335 Combustion Analyzer 9303 Professional Set combines traditional probe and hose assembly configuration with compact sleek analyser design. Delivers outstanding performance for residential and light commercial applications with remote readout capability. Made in Germany. Free ground shipping within continental US.

Fluke 421D Laser Distance Meter mfg. part no. Fluke 3480795 offers the most advanced laser technology for distance measurement. Fluke 421D Laser Distance Meter quickly and accurately determines the distance to your target, the area bounded by two distances, or the volume within three measurements.

Wohler DM 2000 Digital Manometer (mfg. part no. 7006) is a highly precise measuring instrument for differential pressure and temperature. High accuracy and reliability are guaranteed e.g. for gas burner tuning. Furthermore it is very easy to handle.