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The Precision Portable Thermometer (PTM-201) is a state-of-the-art handheld measurement device designed for professionals who demand exceptional accuracy, versatility, and reliability. By supporting a wide range of input types—including RTD, Thermocouple, mA, Voltage, Resistance, and mV—this instrument is engineered to adapt to a variety of field and laboratory applications. The PTM-201’s intuitive 2.8” True Colour TFT touchscreen ensures a user-friendly experience, while comprehensive data logging features and a large 16 GB memory enable extensive record-keeping for analysis and compliance. With robust construction, an integrated rechargeable battery, and advanced calibration and alarm capabilities, the PTM-201 is the ideal partner for achieving precise and traceable measurements in demanding environments. Temperature Inputs: RTD, TC Wide Temperature Measurement Ranges: -200 to + 1800 °C Temperature Resolution: 0.01/0.001* °C (*As per selected Input type) Analog Inputs: Resistance, Current, Voltage Wide Analog Measurement Ranges: 0 to 4000 Ohms, 0 to 2omA DC, 0 to 75 mV DC, 0 to 30V DC Analog Measurement Resolution: 0.01 Ohms, 0.001 mA/mV/V Display: 2.8” True Colour TFT touchscreen Operating Conditions: -10 to 60 °C; 0 to 100% RH (non-condensing) Storage Conditions: -10 to 45 °C; 10 to 90% RH Data Recording: Huge Logging Memory upto 16 GB Data Logging Interval: User-selectable from 1 second to 24 hours Data Download: Via USB Type-C to PC software (Sansel-Soft-01) Calibration: Multipoint calibration feature available Alarms: Audible and visible; user-settable high and low thresholds Battery: Integrated 3.7V / 10,000 mAh rechargeable Li-ion Charging Port: USB Type-C Adjustable Settings: Backlight timing, brightness, touch sound Housing: ABS with anti-slip grip silicon cover Protection Class: IP40 Dimensions: 35 x 80 x 165 mm (L x W x H) Weight: Approximately 560 g

Model: ORP 300 Display: 0.5” 3 ½ Digit 7 segment Red LED Range: -1999 to +1999 mV Resolution: 1 mV Accuracy: ± 1 mV ± 1 digit Input Impedance: > 10¹² Ohms Input connection: BNC socket Electrode: ORP Electrode with BNC attachment Operating Environment: 0 to 50 °C / 20 to 95 % RH non condensing Power supply: 230V AC / 50 Hz ± 10% Overall Dimensions in mm: 185 x 235 x 65 (L x B x H) Instrument weight: 1.6 kg (Approx.)

Model: FI 593 Display : 16 Character X 2 Line LCD Display Input (factory settable): 4-20mA / 0-20mA / 0-2.5V / 0-5V / 0 - 10V / 0 - 75mV (any One) Accuracy at 25°C: ± 0.1% of FS Resolution : 1 / 0.1 / 0.01 (any One User Selectable) Display Modes: Flow Rate (FR) & Total Flow (TF) Display Range: 0 - 9999 (4 Digits) for FR , 0 - 99999999(8 Digits) for TF Units: m³ , Liter, Gallons (Selectable) Voltage Drop: 1 V Maximum (Applicable only for current input models) Input Impedance: 18K Ohms (Applicable only for voltage input models) Conversation Modes:Linear, Square Root (User Selectable) Flow Rate Time Base: Seconds, Minutes, Hours (Selectable) Sensor Supply: 24 V DC / 100mA Max. Power Supply: 90 to 270 V AC Operating Environment: 0 to 60°C / 5 to 95 % RH Non Condensing Frequency : 50 / 60 Hz

Model: TCAL 1501 / 300 Display: 4.3 inch True TFT LCD Display with Touch screen Temperature Range : Amb. to 300°C Resolution: 0.01°C Stability: ± 0.03°C Radial uniformity: Better than ± 0.2°C Measure inputs: RTD-PT 50, 100, PT 1000 / TC - J, K, R, S, T, E, B , N / mA, mV, ohms Temperature Readout: C Stabilization Time: 15 minutes Heating time: 30 mins (25 to 600°C) Cooling time: 50 mins (600 to 100°C ) Well Dimension: 30 x 150 mm (dia x height) Test sensor immersion depth: 140 mm Standard well holes in mm: 5.1, 6.2, 6.2 & 8.1 PC Interface (optional): RS 232 with automatic calibration software UUC Sensor supply output: 24V DC ± 10% / 50mA max. Power supply: 230V AC ± 10% / 50Hz (optional 110V AC) Power Consumption: 1200 VA Switch test: Provided Overall Dimension in mm: 285 x 155 x 330 (L x B x H) (Approx.) Weight: 8.5 kg (without well insert) (Approx.)

Model: TDS 100 Display: 0.5” 3 ½ Digit 7 segment Red LED Range: 0 – 20 ppm/ 200 ppm/ 2000 ppm/ 20ppt / 200ppt ( 5 range selection using front rotary switch ) Resolution: 0.01 / 0.1 / 1 for ppm range & 0.01 / 0.1 for ppt range Accuracy: ± 1 % of Range ± 1 digit Temperature Compensation: 0 to 50°C (Manual) continuously adjustable Cell Constant: Adjustable with indication on display Sensor: Platinum Conductivity cell (1.0 cell constant) with Banana male connector Input Connection: Banana socket Operating Environment: 0 to 50 °C / 20 to 95 % RH non condensing Power supply: 230V AC / 50 Hz ± 10% Overall Dimensions in mm: 185 x 235 x 65 ( L x B x H ) Instrument weight: 1.6 kg (Approx.)

Model: pH 300 Display: 0.5” 3 ½ Digit 7 segment Red LED Range: 0 to 14 pH / -1999 to +1999 mV Resolution: 0.01 pH / 1 mV Accuracy: ± 0.05 pH ± 1 digit / ± 1 mV ± 1 digit Input Impedance: > 10¹² Ohms Input connection: BNC socket Electrode: Combined Electrode with BNC attachment Temperature Compensation: 0 to 50°C (Manual) continuously adjustable Operating Environment: 0 to 50 °C / 20 to 95 % RH non condensing Power supply: 230V AC / 50 Hz ± 10% Overall Dimensions in mm: 185 x 235 x 65 (L x B x H) Instrument weight: 1.6 kg (Approx.)

Model: TCAL 1501 / 600 Display: 4.3 inch True TFT LCD Display with Touch screen Temperature Range : Amb. +5 to 600°C Resolution: 0.01°C Stability: ± 0.05°C Radial uniformity: Better than ± 0.5°C Measure inputs: RTD-PT 100, PT 1000 / TC - J, K, R, S, T, E, B , N / mA, mV, ohms Temperature Readout: C Stabilization Time: 15 minutes Heating time: 30 mins (25 to 600°C) Cooling time: 50 mins (600 to 100°C ) Well Dimension: 30 x 150 mm (dia x height) Test sensor immersion depth: 140 mm Standard well holes in mm: 5.1, 6.2, 6.2 & 8.1 PC Interface (optional): RS 232 with automatic calibration software UUC Sensor supply output: 24V DC ± 10% / 50mA max. Power supply: 230V AC ± 10% / 50Hz (optional 110V AC) Power Consumption: 1200 VA Switch test: Provided Overall Dimension in mm: 285 x 155 x 330 (L x B x H) (Approx.) Weight: 8.5 kg (without well insert) (Approx.)

Model: Tcal 1501 / 250 Display: 4.3 inch True TFT LCD Display with Touch screen Temperature Range: Amb. +5 to 250°C Resolution: 0.01°C Stability: ± 0.03°C Accuracy: Better than ± 0.3°C Stabilization Time: 45 minutes Heating time: 60 mins (Amb. to 250°C) Cooling time: 90 mins (250 to 50°C ) Chamber Dimension: 80 x 140 mm (dia X depth) Testing area: 60 x 120 mm (dia X depth) Temperature medium: Silicon oil (200cs recommended) Measure inputs: RTD-PT 100, PT 1000 / TC-J, K, R, S, T, E, B , N / mA /mV / ohms PC Interface: RS 485 (optional) Power supply: 230V AC or 110V AC 50/60Hz Power Consumption: 1200 VA Switch test: Provided Dimension in mm: 340 x 175 x 425 (L x W x H) (Approx.) Weight (Approx.): 12 kg (without oil)

Model : pH 641 Display : 0.5” 3 ½ Digit 7 segment Red LED Range : 0 to 14 pH / -1999 to 1999 ORP Input Impedance : > 10¹² Ohms Accuracy : ± 0.01 pH ± 1 digit / ± 1 ORP ± 1 digit Resolution :0.01 pH Electrode: Combined Electrode with BNC attachment Input connection : BNC socket Operating Environment : 0 to 50 °C / 20 to 95 % RH non condensing Power supply : 230V AC / 50 Hz ± 10% Overall Dimension in mm : 48 x 96 x 65 (H x B x L) Cut out Dimension in mm : 44 x 92 (H x B) Instrument Weight : 170 g