Test and Measurement Instruments

World Leaders in pH Measurement

%RH, pH & Temperature Measurement Instruments

Test The Future Today - With Sentron pH Testers and Meters

Sentrons NEW  Non - Glass (unbreakable) pH probes incorporate our latest Ion Sensitive Field Effect Transistor (IFSET) technology which results in a probe which is "SANITARY" (non contaminating), "STORES DRY", does NOT require "ROUTINE MAINTENANCE", gives you an "INSTANT MEASUREMENT", experiences "NO DRIFT", measures both "LIQUIDS & SEMI SOLIDS", does "NOT BREAK" and is not influenced by shelf life. A wide selection of probe types is available to handle almost any field or laboratory application.

Combined with a wide selection of Portable Handheld and Bench-Top meters, SENTRON offers an  UNBEATABLE VALUE in today's marketplace.

Compact, Portable Thermo-Hygrometer The HI series are compact, one-hand portable, versatile hygrometers with a convenient wrist-strap so that you can monitor relative humidity anywhere. The built-in thin-film capacitance sensor assures accurate humidity measurements from 0.0 to 100.0% RH with a resolution of 0.1%. The rubber keypad protects the keyboard from dust or accidental splashes. A sintered cap can be placed on the sensor shaft for protection in dusty environments. If fast response is desired, the cap can be removed. This simple-to-use meter is ideal for the HVAC field and comes complete with a built-in RH sensor, sintered cap, 9V battery and instruction manual.

Compact % RH Relative Humidity Transmitter This state-of-the-art solid-state sensor plugs into its wall-mounted receptacle for on-site, continuous monitoring of relative humidity and temperature in critical or controlled environments. Two separate 4-20 mA analog signals which can be powered by a single external voltage source can be sent to remote panel meters, controllers, or data acquisition systems. Applications include environmental chambers, HVAC installations, building management, clean rooms, calibration labs and museums. With  an accuracy of ±2% RH and ±1%ºC, it can be used in dusty environments by adding a furnished removable sintered-metal cap. With its plug-in convenience, the unit can be quickly removed and replaced; so the cleaning or calibration checks cause no costly downtime in the production area.

Hand-Held Microprocessor Based Thermometer – Type "K" Thermocouple Recall the highest or lowest reading taken at the touch of a button. There is also a hold key to freeze the display. Temperature range from -50 to 950°C (-58 to 1742°F) change from °C/°F by simply pressing a button. Housed in a rugged case for maximum protection anywhere. The smooth keypad with membrane keys will wipe clean easily. Featuring advanced memory functions plus Hi / Lo recall in any cycle. A wide variety of interchangeable probes is available to meet your specific application.

At last a Datalogger with the Features that You Requested! 7600 recordings in non-volatile EEPROM * User-selectable interval from 1 minute to 24 hours * Programmable serial and user ID numbers * Out of range intermittent LED alarm signal * AA batteries providing 4 years of continuous use * Optional cordless transmitter and software programs for Windows ®. weighing merely 150 grams, they are not much larger than your PC mouse. They are housed in a smooth, yet tough ABS casing that is sealed against ingress of dust and water. Simple-to-use with no keys or buttons to press or hold, a Green LED on the front of the meter will notify you of the logging status while a Red LED serves as an alarm indication when undesired temperatures have been encountered. Using the powerful software for Windows®, you can select among others, your own high and low temperature alarm levels, Celsius or Fahrenheit recording, delayed start and monitoring interval. In addition, you can program each datalogger with a unique location number for easy identification. Unlike other dataloggers on the market, downloading is performed through infrared lights without requiring cables and connectors - typical dirt-traps to be avoided at all costs in food applications.

pH Transmitter With Isolated Output The HI 8614 is a water-resistant pH transmitter designed with a high impedance input to accept signals directly from a pH electrode. The signal is then processed by a special high-impedance amplifier which transmits an output current directly proportional to the input signal but independent of changes in load or cable capacitance. Calibration is performed by adjustment of two independent trimmers for slope and offset. Temperature compensation is performed by the transmitter's ATC circuitry when measurements are taken with a temperature probe attached, it is also possible to substitute a fixed resistor for the temperature probe, if ATC is not required. The transmitter can be connected to recorders, computers or any data monitoring device that accepts 4 to 20 mA input. Two versions are available, the standard model HI 8614 and HI 8614L with an LCD. HI 8614L allows easy verification and monitoring of measured values, and is easier to calibrate and maintain. Specifications: HI 8614 & HI 8614L HI 8614L only Range 4 to 20 mA 0.00 to 14.00 pH Resolution 0.01 mA 0.01 pH Accuracy ±0.02 mA ±0.02 pH Calibration Offset: ±2.2 mA.  Slope: ±0.5 mA Offset: ±2 pH  Slope: 86-116%