pH Controller and Dosing Pump  for Swimming Pools, Hot Tubs and Spas BL100 pH Controller and Dosing Pump is a system engineered for maintaining the pH of swimming pools, hot tubs, and spas. Typically chlorine, whether liquid or solid, is alkaline and will raise the pH of the water that it is added to. As the pH increases above pH 7.4, a form of chlorine known as hypochlorite ion (OCl–) increases. This form of chlorine is 100 time less effective at killing bacteria as compared to the other form of chlorine known as hypochlorous acid (HOCl). For this reason it is important to maintain the correct pH level in order to ensure that the more powerful hypochlorous acid form is available for disinfection. The BL100 was developed to be an inexpensive solution for the consumer to maintain the ideal pH at all times. Simply insert the probe and injection valve in-line with the recirculation pump and provide the chemical to be dosed. The BL100 is available in multiple configurations including a meter and probe option, a kit for in-line mounting, and a complete package that includes bypass loop and panel mounted flow cell. The kit for in-line and flow cell models include aspiration tubing with filter and dispensing tubing with an injection valve. FEATURES: 1. Peristaltic Dosing Pump The BL100 has a powerful built-in peristaltic chemical feed pump that utilizes a stepper motor which does not have any gears or brushes to wear out. This design provides for a long life and little maintenance. 2. Adjustable Flow Rate The flow rate from the dosing pumps is adjustable from 0.5 to 3.5L/h. Larger bodies of water require more chemical to be dosed than smaller ones in per unit of time. The adjustable flow rate, like the proportional band, allows for better control in maintaining a desired set point.    3. Automatic Proportional Pump Control The peristaltic dosing pump can be controlled by simple on/off or more advanced proportional control which helps prevents overshooting of the set point. When using proportional control the flow rate that is programmed, will be impacted by the proportional band used. The closer the reading is to the set point the longer it takes for the peristaltic pump to complete one revolution. If the reading is outside the proportional band then the amount of time it takes to complete one revolution is based on the flow rate programmed.       4. Quick Connect Probe Input The Quick Connect DIN connector creates a waterproof seal with the meter making it ideal for reducing electrical noise issues with the connection caused by humid environments.   5. Programmable Alarm System Enable or disable the low and high level alarms for pH. When an alarm is activated, all dosing will stop. For added safety, the alarm system also offers overdosing protection in that if the set point value is not corrected within a programmed time interval then the meter will go into alarm status.   6. Acid Tank Level/Flow Switch Input The BL100 allows for a connection to an optional level controller or flow switch. This input can be used to disable the dosing pump when there is no chemical left in the reservoir tank or there is no flow due to the pump being turned off.   7. Multicolored LCD Display The BL100 features a multi-colored LCD that provides for a quick way to see the status of the pool controller. If in control mode and operating as intended the display will be green. If control is not enabled then the display will be light green; while in an alarm state the display flashes red.   SPECIFICATION   ORDERING INFORMATION BL100-00 is supplied with BL100 controller. HI10053 pH/temperature probe. 4.01 pH buffer solution, 20 mL (3). 7.01 pH buffer solution, 20 mL (3), power connection cable, instruction manual and quality certificates for instrument and probe, BL100-10 (with in-line mounting kit) is supplied with BL100 controller. HI10053 pH/temperature probe, pool controller aspiration filter, pool controller injector, 1/2'' thread, saddle for ø50 mm pipe (2), PVC aspiration tubing (flexible) (5 m), PE rigid dispensing tubing (5 m), 4.01 pH buffer solution, 20 mL (3), 7.01 pH buffer solution. 20 mL (3), power connection cable, instruction manual and quality certificates for Instrument and probe.  BL100-20 (with flow cell mounting kit) Is supplied with BL100 controller, HI10053 pH/temperature probe, flow cell for BL100/BL101 mounting panel assembly for BL100/BL101, pool controller aspiration filter, pool controller injector, 1/2“ thread, saddle for ø50 mm pipe (3). PVC aspiration tubing (flexible) (5 m), PE rigid dispensing tubing (15 m), barbed tubing adapter 1/2'' - 6 mm (2), valves (H), 4.01 pH buffer solution. 20 mL (3), 7.01 pH buffer solution, 20 mL (3), power connection cable, instruction manual and quality certificates for instrument and probe.     read more

PORTABLE LUX METER HI 97500 The HI-97500 is a portable Lux meter designed to perform light measurements simply and accurately. The instrument is supplied with a light sensor connected by a fixed 1.5 m coaxial cable to allow measurements to be taken from a distance without any interference from the operator. By simply pressing the RANGE key, users can switch among three ranges to choose the best resolution according to the environment being tested. The HI-97500 Lux meter has a rugged and water-resistant body for frequent outdoor use. This meter also features a low battery indicator and automatic shut-off feature that turns the meter of after 7 minutes of non-use. Powered by a single 9V battery, this instrument guarantees about 200 hours of continuous operation.   FEATURES Three measurement ranges Water- resistant housing 200 hour battery life with battery level indicator       SPECIFICATION   ORDER INFORMATION HI97500 is supplied with battery, protective case and instructions.   read more

COD TEST TUBE HEATER VIAL THERMO REACTOR HI 839800 with 25 Vial Capacity The HI839800 COD Test Tube Heater is an easy to use thermoreactor constructed of durable materials. The aluminum block incorporates a 25 vial capacity and a well for a reference temperature probe. Its well-marked user interface provides intuitive operation, equipped with two arrows to set the built-in timer and a temperature button with two predefined temperature settings: 150ºC and 105ºC. Additional features include status indicator lights, a thermal fuse to prevent overheating, and continuous LCD display. COD Test Tube Heater features two predefined temperature profiles: 150ºC and 105ºC. Digestions for chemical oxygen (COD) and total phosphorus are conducted at 150ºC, while total nitrogen digestions are conducted at 105ºC. The test tube heater automatically heats up to the set temperature, holding it until the countdown timer has finished. Once the timer has ended, a beep will sound and the heating element will turn off. The outer casing of the HI839800 remains cool to the touch, even during a timed digestion. An optional lab safety shield and test tube cooling rack provide a complete setup for sample digestions. FEATURES Predefined Temperature Settings - The test tube heater features two predefined temperature profiles at 150ºC (221ºF) and 105ºC (301ºF) that can be selected at the press of a button. Temperature Alerts - The HI839800 alerts users in the event that the temperature of the heating block is either above or below the set temperature. A timer icon reminds users to wait until the heating block has cooled or warmed up before inserting their samples. Built-in Timer - A built-in countdown timer of up to 180 minutes allows users to easily set the required digestion time by simply pressing the up and down arrows. Once a time has been set and the heating element is stable, a press of the START button begins the digestion procedure. Status Indicator Lights - Three LED lights are featured on the HI839800. A green LED indicates the heater has been turned on; a yellow LED indicates when the heater is actively heating up to a set temperature; a red LED indicates when the heater goes above 50ºC, reminding the user that the aluminum element is hot. Overheating Prevention - The HI839800 contains a thermal fuse that prevents overheating. Should overheating occur, the heater automatically shuts down and all LED indicator lights turn off. Reference Temperature Well - In addition to the 25 vial capacity of the aluminum heating block, a small well is available for a temperature probe for users that wish to verify their heating block. Two Operating Modes - The HI839800 features two operating modes: idle and heating. Idle mode is the default mode in which the heater measures and displays the current temperature, target temperature, set reaction time, and an “idle” tag. Heating mode is activated when users press the START button; it starts when actively heating and continues during the countdown timer. Continuous LCD Display - The block temperature is continuously displayed on the easy to read LCD display, even when there is no active temperature program running. All relevant information in addition to temperature are easily visible during idle and heating mode. Error Messages - Messages on display alerting to problems including high or low temperature, hot surface, or heating system malfunction.   SPECIFICATION   ORDER INFORMATION HI839800-02 (230V) is supplied with power cable and instructions.       read more

DASQUA Digital Level   Features Large easy-to-read backlight LCD display with hold function With horizontal and vertical vials Absolute level measuring, relative angle measuring, slope and angle conversion With embedded strong permanent masgnet on measuring face CNC machined super flat edges Advantage • High quality material and precision machining process ensure product quality； • A traceable QC system is worthy of your trust； • Efficient warehouse and logistics management ensure your delivery time； • One year warranty makes you without the worries behind；   Specifications Product Name:Digital Level Item Number: 8301-2640 Measuring Range:  4x90º Resolution: 0.1º Length: 400mm Accuracy:  0.2º Warranty: One Year     Package Content 1 x Digital Level 1 x Warranty Letter   read more

DASQUA Double Beam Digital Height Gauge Features Double beam ensures higher measuring accuracy Long carbide tipped scriber for sharp, clean lines Rigid, heavy duty construction for industry use WIth SPC data output With a feed wheel on the back Base hardened, ground and lapped for maximum flatness Zero-setting at any position Dustproof sheild optional     Application The electronic Height Gauge is an instrument for dimensional measurement of all kinds of mechanical parts. It is mainly used in the workshop to provide a quick and easy measurement of parts in production. T Advantage Of DASQUA High quality material and precision machining process ensure product quality； A traceable QC system is worthy of your trust； Efficient warehouse and logistics management ensure your delivery time； One year warranty makes you without the worries behind；   Specifications Product Name: Double Beam Digital Height Gauge Warranty: One Year     Package Content 1 x Double Beam Digital Height Gauge 1 x Warranty Letter read more

DASQUA Dial Depth Gauge Features Used to measure the depth of holes or parts with grooved or elevated surfaces Dial indicator for easy and clear reading Hardened base with fine lapped contact surface Extension rods of different lengths offering larger measuring ranges Advantage Of DASQUA High quality material and precision machining process ensure product quality； A traceable QC system is worthy of your trust； Efficient warehouse and logistics management ensure your delivery time； One year warranty makes you without the worries behind； Tips Before the operation, clean measuring faces of the anvil and the spindle with a soft cloth or soft paper.   Specifications Product Name: Dial Depth Gauge Item Number: 5822-4100 Measuring Range:0-1'' Depth: 6'' Warranty: One Year     Package Content 1 x Dial Depth Gauge 1 x Protective Case 1 x Warranty Letter read more

DASQUA Digital Bore Gauge Features Used to measure close tolerance of holes, taper and roundness Steel body and interchangeable carbide anvils Extension rods and washers for fine adjustment in sizes to select a specific range Large digital display for easy reading Lightweight housing for extra length and protection Thermally insulated for extra stability of accuracy Advantage Of DASQUA High quality material and precision machining process ensure product quality； A traceable QC system is worthy of your trust； Efficient warehouse and logistics management ensure your delivery time； One year warranty makes you without the worries behind；   Specifications Product Name: Digital Bore Gauge Item Number: 5610-8105 Resolution: 0.002mm / 0.0001'' Depth:  40/1.57''’ Warranty: One Year   Package Content 1 x Digital Bore Gauge 1 x Protective Case 1 x Warranty Letter read more

DASQUA 150 mm Woodworking Carpenty Digital External Outside Caliper Features Make quick and accurate outside measurements of different materials Perfect for woodworking, carpenty, metal fabrication, etc High hardness and wear resistance With large LCD display for clear and error-free readings The gauge is spring loaded and makes point contact at a constant measuring force     Advantage Of DASQUA • High quality material and precision machining process ensure product quality； • A traceable QC system is worthy of your trust； • Efficient warehouse and logistics management ensure your delivery time； • One year warranty makes you without the worries behind；   Specifications Product Name: External Digital Caliper Gauge Item Number: 1804-1020 Measuring Range: 0-150mm / 0-6'' Resolution: 0.1mm / 0.005''/ 1/64'' Accuracy: 0.2mm / 0.01'' Warranty: One Year   Package Content 1 x Digital External Caliper Gauge 1 x Protective Case 1 x Warranty Letter     read more