General Tools DCM4300CERT - with NIST Calibration Certificate - Digital Conductivity Meter has automatic temperature compensation. This water quality testing meter has two ranges of 2 mS and 20 mS. Formerly Mannix Instrument.

General Tools DCO1001CERT - with NIST Calibration Certificate Digital CO Detector provides an adjustable co warning level. General Tools DCO1001CERT Digital CO Detector functions as a carbon monoxide gas analyzer. Formerly Mannix Instrument.

General Tools DCO1002CERT - with NIST Calibration Certificate Digital CO Detector functions as a carbon monoxide meter. General Tools DCO1002CERT Digital CO Detector is a crucial safety tool as a carbon monoxide gas analyzer. Formerly Mannix Instrument.

General Tools DCT2001CERT - with NIST Calibration Certificate - Professional Conductivity TDS Meter has ATC & Variable Temperature Compensation Factor Adjustment. This professional conductivity tds meter has a manual temperature compensation adjustment. Formerly Mannix Instrument.

General Tools DHI5CCERT - with NIST Calibration Certificate - Humidity Temperature Meter conveniently displays temperature and humidity. General Tools DHI5CCERT horizontal digital thermometer and hygrometer has an easy to read jumbo display. Formerly Mannix Instrument.

General Tools DHI875FCERT with NIST Calibration Certificate Humidity Temperature Meter is a digital thermometer and hygrometer. General Tools DHI5FCERT Humidity Temperature Meter displays temperature and humidity with an easy jumbo display. Formerly Mannix Instrument.

General Tools DIT360CERT - with NIST Calibration Certificate - Precision Digital Insulation Tester is an effective and complete digital insulation tester. General Tools DIT360CERT Precision Digital Insulation Tester features a 4 digit LCD display with a 40 segment analog display in this precision digital insulation tester. Formerly Mannix Instrument.

General Tools DKP300MACERT - with NIST Calibration Certificate Digital Alarm Thermometer Waterproof is a Waterproof Key Pad Thermometer with Alarm. General Tools DKP300MACERT Digital Alarm Thermometer Waterproof is an excellent digital temperature probe thermometer.

Mini T PRO TK52 is a compact digital meter designed for simplicity and as a hand held differential thermometer for one-hand operation. E Instruments Mini T PRO TK52 Hand Held Differential Thermometer is equipped with unique features such as a high stability, good repeatability and fast response. E Instruments mini T PRO TK52's goal is to keep high accuracies of measurements at bad ambients. Thermocouples type K are used for temperature measuring. Discontinued product.

E Instruments HD50 Thermo Hygrometer is equipped with unique features such as a high stability, good repeatability and fast response. E Instruments HD50 Mini T RH PRO's goal is to keep high accuracies of measurements at bad ambients. Platinum resistance element (Pt100W) for the E Instruments HD50 is used for temperature measuring and compensation.

General Tools DL8829CERT - with NIST Calibration Certificate - Temperature Humidity Data Logger records relative humidity and temperature. This General Tools DL8829CERT temperature humidity recorder logs data for days, weeks or months and multiple data loggers can be programmed and data downloaded from a single docking station. Formerly Mannix Instrument.

General Tools DL8828CERT - with NIST Calibration Certificate - Temperature Data Logger records temperature only. General Tools DL8828 CERTTemperature Data Logger is a complete temperature humidity data logger. Formerly Mannix Instrument.