Extech SDL150 Dissolved Oxygen Meter/Datalogger Hardwired (No Connector Included), Wide-Band

Extech 401014 Big Digit Indoor/Outdoor Thermometer, Green/Silver Big digit thermometer simultaneously displays indoor and outdoor temperatures. Waterproof sensor for outdoor measurement extends on a 9.6 ft thin cable for easy installation. Memory stores min/max readings over time. Complete with: Built-in stand External temperature sensor AAA battery Wall mount bracket

Extech AN100-NIST CFM/CMM Mini Thermo-Anemometer, Green/Orange, 1.3"W NIST Certified CFM/CMM Thermo-Anemometer can simultaneously display of air flow or air velocity plus ambient temperature. Easy to set area dimensions (cm2) are stored in the meter's internal memory for the next power on. Features: 20 point average for air flow and 3% velocity accuracy via low friction 2.83 In. D (72 mm) ball bearing vane wheel on 3.9 ft (120 cm) cable Comes complete with 9v battery, protective rubber holster, case and NIST Certificate

Extech 407119 Heavy Duty CFM Hot Wire Thermo-Anemometer, Blue, Probe Sensor, 7.9"L Heavy duty CFM hot wire thermo-anemometer uses a telescoping probe (extends up to 3 ft) that's ideal for use in ducts and ventilating systems. It can accurately measure air flow (CFM/CMM), air velocity and temperature. Air flow can be displayed as an instantaneous value or up to a 20 point average. A built-in RS-232 interface can be used with optional data acquisition software and cable for recording measurements directly to your PC. Comes complete with telescoping probe with 5.5 ft cable and 4 x AA ...

Extech 407510 Heavy Duty Dissolved Oxygen Meter W/PC Interface, Wide-Band Sensor Dissolved oxygen meter features dual display of oxygen concentration and temperature with RS-232 PC interface for data acquisition and datalogging applications. Measures dissolved oxygen from 0 to 20.0 mg/L and 0 to 100.0% oxygen plus temperature from 32 to 122°F (0 to 50°C). Complete with: 0.8 In. (20 mm) diameter probe on 13 ft. (4 m) cable 5 membranes Rubber holster 9v battery Hard case

The Triplett RHDL30 USB PDF Datalogger records 24,000 readings each for Temperature and Humidity. You can download data in PDF format with graph or Excel (.csv) spreadsheet. It features 6 languages (English, German, French, Italian, Spanish, and Portuguese) with user programmable high/low alarms as well as programmable start and alarm delays. Min/Max recalls the highest and lowest recorded readings. You can mark up to 8 events for easy recall. Recorded data can be securely password protected. Includes 2 CR2032 batteries and cover with built-in stand. 1 year warranty.