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  Used for greenhouse temperature monitoring, the Sper Scientific Min-Max Thermometer is available in two models. Model 736680 includes a magnetic float reset and features dual scales of -50/50°C & -60/120°F. Model 736690 features a push-button reset and dual scales of -50/50°C & -60/120°F. Sper Scientific Min-Max Thermometers allow easy spot checking of temperature in a greenhouse or other temperature-sensitive environment.  Sper Scientific Min-Max Thermometers are available at SperDirect.com.

The Sper Scientific Water Quality Meter Model 850081 uses interchangeable probes to read pH, mV, conductivity, TDS, DO, temperature and ORP, diminishing the need for multiple devices dedicated to testing limited parameters. The user can order probes for only the parameters currently required, and add additional probes in the future. Intelligent probes electronically retain calibration information. No recalibration is required when changing probes. The display simultaneously reads temperature in user selectable °C & °F, and all measurements are automatically temperature compensated. RS232 port enables communication with a computer. Also features auto power off, hold, min/max, fold-out easel back and a tripod...

 The Sper Scientific Advanced Datalogging Sound Meter (Model 850013) uses a single range of 30 ~ 130 dB.  This dynamic range eliminates the need to manually select and change ranges, alleviating the problem of lost data associated with range changes in auto-ranging models. All test parameters are simultaneously displayed on a large, bright backlit display featuring 0.1 dB resolution and a bar graph.  Automatically log up to 31,000 records for later download, or manually save and recall 99 data points with date and time stamp directly on the meter’s LCD. The bi-directional USB port and software enable control of the...

Water conservation is a frequently discussed topic in terms of household use, government regulations, agriculture, environmental quality and water management. As the global population increases, it is becoming more critical to manage water resources and the ecosystems that rely on them. An article found on the Science Daily discusses the components of a successful freshwater management plan and nine ways to save our waterways and fisheries. “Humans have put key freshwater ecosystems at risk because of land development and the loss of the vegetation along rivers and streams.” says John Richardson, a professor in the Dept. of Forest and Conservation Sciences...

We learned from one of our customers that sushi rice has the potential to become a host for pathogens if not properly prepared. To protect against this, it is imperative that proper amounts of vinegar are added to maintain optimum acidity. To ensure proper acidity levels are achieved, a pH meter should be used to test each batch of rice. A maximum pH reading of under 4.6 is generally considered safe.  In many states, there are specific laws in place that state sushi rice pH MUST be between 4.1-4.6.  There are two different ways that you can measure the pH...