Extech CO50 Carbon Monoxide CO Meter features: Easy one key operation detects CO levels to 10,000ppm; 10,000ppm, cross filtered CO sensor; 0 to 999ppm digital display for low end monitoring; Audible indicator rises in tone up to 30ppm, etc. Discontinued product.

Amprobe BT-AFT1 Arc Fault Circuit Breaker and circuit breaker tester, features: testing proper operation of the arc fault circuit breaker; one button operation; "go - no go" indication. Perfect for office, residential and HVAC applications.

Extech DV30 Adjustable Non-contact Voltage Detector includes AC Voltage detection from 12VAC to 600VAC. The Extech DV30 also features sensitivity adjustment that increases or decreases sensor trigger threshold.

The Extech 42510A Wide Range Miniature IR Thermometer features a 12:1 distance to target ratio with guiding laser pointer.

Extech 42276 Temperature and Humidity Datalogger features: Ability to download, print or graph the logged data anytime, anywhere; Self standing battery operated programming unit and printer - eliminates the need for a PC; Data Logger module records Relative humidity and temperature in storage containers, shipping vans, freezers and more; Datalogger transfers data to programmer; Programming is performed through the 5 button control panel and integral LCD display; Print numerical data or graphs on thermal paper; Portable size is packaged in an ABS plastic case.

This modern component meter frequency counter features: 10Hz to 1GHz measurement range; Frequency, Period and Totalize and Self Check modes; 8 digit LED display; X1 and X10 Input Attenuator; 10 PPM temperature stability (oven controlled); Low power consumption and light weight; 25mV sensitivity. Product Discontinued.

Amprobe AM-130 TRMS Digital Multimeter with PC Connection comes equipped with: True TRMS Measurement, Optical isolated PC interface capability, Auto and manual ranging, Auto power off, etc.

AccuTools DS-220R Refrigerant Charging Scale Portable has a 220lb capacity with 0.1oz resolution that is one the most feature-filled precision scales on the market. The AccuTools DS-220R is specially designed for HVAC and refrigeration work like Critical Charging on small systems with a patented lightweight rugged design and built-in handle for easy carrying.

The Amprobe AMC-2 Analog Megohmmeter Hand Cranked tests voltage via a hand crank which requires no batteries or external power.

Protek B4100 digital bench top multimeter features: 5-1/2 Digit multimeter with selectable count resolutions up to 200,000; True RMS and measures frequency; Selectable Count Resolutions: 2K, 20K, 200K; Auto-ranging; Trend plot display; RS-232 interface standard and optional GPIB interface, etc. Product Discontinued.

Extech 461895 Contact and Photo Tachometer Combo Meter combines contact and non-contact models for use in a variety of applications. The characters on the display reverse direction depending on the contact, or photo, mode.

Amprobe AMB-35 Megohmmeter and insulation resistance tester, does insulation resistance testing of wires, cables, transformers and electrical motors. Amprobe AMB-35 comes as a complete kit including test leads, built in voltmeter and provides selectable test voltages up to 1000V and Button Lock, etc.