HM Digital 1000ppm TDS Calibration Solution

$32.99

COMM1 IFR Radio Simulator

$3.48

HOJILA Multifunction Process Calibrator VA720 for Frequency RTD TC mV mA Calibration

$369.47

VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Household Drinking, and Aquarium, UL Certified

$29.99

Extech PRC10 Current and Voltage Calibrator and Meter

$780

Digital pH and TDS Meter Kit - 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy - 3-in-1 TDS EC Temperature Meter for Hydroponics, Household Drinking, and Aquarium (pH Meter Kit)

$89.54

AC Infinity pH Meter PRO Kit, High Precision Digital pH Pen with ±0.01 pH Accuracy and Interchangeable Probe, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools

$19.99

Hypertech 730125 In-Line Speedometer Calibrator

$157.54

White-Rodgers 50M56U-843 Universal Integrated Control

$14.49

Myron L RPG Replacement pH Sensor for Multiparameter Meters

$53.32

Magnehelic Gauge Calibrator for HVAC, Laboratories, Calibration Labs Model: PSI-PP1

$140.49

HOJILA FM-204-100K (980N/100kgf/220Lbf) Digital Force Gauge Push Pull Gauge Dynamometer, Peak/Track Mode, 0.5% Accuracy

$48.99

HM DIGITAL TDS Meters TDS-3 Handheld Temperature TDS ( PPM ) Tester, 0 - 9990 ppm, 1 ppm Resolution, +/- 2% Readout Accuracy Testing Water Quality For Hydroponics Aquariums Pools Drinking etc

$93.5

Taidacent Blue Color High Precision 5 Digit Amp Meter DC 0.0000-3.0000A Ammeter Digital Display DC Digital Ammeter Resolution 0.1mA

$11.17

Dwyer Magnehelic Series 605 Differential Pressure Indicating Transmitter, 0-1.0"WC Range

$89.99

Load Cell Controller Indicator Instruments Transmitter, Input Signal ±25mV, Accuracy 0.05%, 5 Digit LED Display

$146.81

1833C LCR Meter Hantek Handheld LCR Meter, 0.30% Accuracy,0.3/0.6 Vrms with 10 Typical Test Frequency

$309.99

Fluke 715 Volt/mA Loop Calibrator

$59.99

CALT 1 Meter 1000mm Stroke Linear String Pot Encoder Sensor 6 Digit Digital Meter Counter Display pushpull ABZ 3 signals 5-26V DC

$29.56

DEEEER Simulator

$1.99

Extech 380560 High Resolution Precision Milliohm Meter,Gray

$124.78

HM Digital ZT-2 Basic TDS Tester, 0-999 ppm Measurement Range , 1 ppm Resolution, +/- 3% Readout Accuracy, Black

$13.7

TOWRITE Portable generators SG-004A 4-20mA Multifunction Signal Generator 4-20mA PWM Analogs Output Source Process Calibrator Programmable Adjustable Current Voltage Simulator

$9.99

Sonic Tension Meter Flexible Sensor SKM-MM for use with The Gates Unitta U508 U550 U550C U507 Sonic Tension Meter.

$95

Milwaukee Instruments MW102 PH and Temperature Meter

$19.99

HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy

$11.99

[Industry-Grade Beidou+GPS AHRS IMU] WTGAHRS2 MPU9250 10-axis Accelerometer+Gyroscope+Angle(XY 0.05° Accuracy)+Magnetometer+Air Pressure+Latitude+Longitude+Ground Speed, Navigation System

$18.5

4 in 1 Digital pH Meter for Water, ±0.01 Resolution High Accuracy Tds Meter Digital Water Tester with ATC pH Tester, Water Tester for Drinking Water, Brewing, Hydroponics, Wine, Pool and Aquarium

$189.28

System Zoo 1 Simulation Models: Elementary Systems, Physics, Engineering

$3.99

HM Digital TDS-EZ TDS Meter Handheld PPM Tester

$199.73

PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium

$22.99

RK560 Mini Radio Frequency Counter Meter,50MHz-2.4GHz Radio Frequency Counter with CTCSS/DCS Decoder,Portable Handheld Frequency Counter Meter,1K / 0.1K.

$63

Altek 1798828 Model 334A Loop Calibrator, 4-20 mA Process Control Loop

$50.99

Goedrum GHC-AN Electronic Hi-Hat Controller for eDrums

$66

Taidacent Power Meter Calibration Power Measurement 1MHz ~ 10GHz -50~0dBm Power Attenuation Value Can be Set

$409.88

PmoYoKo Digital pH/TDS Meter with ATC pH Tester, 3 in 1 pH TDS Temp 0.01 Resolution High Accuracy pH Tester with LCD Backlit, TDS Meter pH Meter for Water, Wine, Pool, Hydroponics and Aquariums

$6.99

HM Digital AP-1 AquaPro Water Quality Total Dissolved Solids Tester, 0-5000 ppm TDS Range, 1 ppm Resolution, +/- 2% Readout Accuracy (Magnetic Body)

$16.39

Ultimate Ocean Simulator

$9.99

Extech 407860 Heavy Duty Vibration Meter, 39 Inch

$179.99

ABS DC 0‑10V Voltage Signal Generator, High Accuracy Adjustable Voltage Signal Simulator, Multiple Protections Voltage Simulator for Electrical Machiner

$39.93

[Industrial-Grade Accelerometer+Inclinometer] HWT901B-TTL MPU9250 9-axis Gyroscope+Angle(XY 0.05° Accuracy)+Digital Compass+Air Pressure+Altitude, RM3100 Magnetometer Compensation and Kalman Filtering

$57.99

Milwaukee BEM500 ORP Meter with 110V Power and Mounting Kit, +/- 999 mV, +/- 5 mV Accuracy

$221.76

Fluke 705 Loop Calibrator, 28V Voltage, 24mA Current, 0.025 percent Accuracy

$849

Simrad RF300 Feedback W/10M CBL&Link

$549.99

Cronus Zen Controller Emulator for Xbox, Playstation, Nintendo and PC (CM00053)

$32.98

VM6310 Digital Vibration Meter Tester Vibrometer Gauge VM-6310

$109.99

【10-Axis Barometer + Tilt Sensor】 WT901B high-Precision Accelerometer + Gyroscope + Angle + Magnetometer with Kalman Filtering, Three-axis MPU9250 AHRS IMU (IIC/TTL, 200Hz), for Arduino and More

$19.9

Milwaukee Instruments MW600 Standard Portable Dissolved Oxygen Meter

$889.99

Hanna Instruments Quick Calibration Solution for GroLine pH and EC Meters (500 ml) HI5036-050

$38.99

MWM Phase Essential Wireless DVS Controller ES

$46.99

HM Digital SM-1 In-Line Single TDS Monitor, 0-9990 ppm Range, +/- 2% Readout Accuracy

$14.15

Hand Operated Pressure and Vacuum Pump Calibrator for Calibration Labs Field Calibration Pressure Transmitter Calibration Model: AI-DP1-2200 (Hand Pump with Pressure and Vaccum Guage)

$789.99

AEM 30-0300 X-Series Wideband UEGO AFR Sensor Controller Gauge

$94.99

5 in 1 TDS Meter PH Tester, 0.01 High Accuracy Digital PH Meter for Water, PH/TDS/EC/Salt/Temp Tester, PPM Meter Water Tester for Drinking Water, Hydroponics, Plants, Aquarium and Pool

$12.97

PmoYoKo Digital pH/TDS Meter with ATC pH Tester, 3 in 1 0.01 Resolution High Accuracy pH Pen Tester for Water with LCD Backlit, Tds Meter pH Meter for Drinking Water, Wine, Pool and Aquariums

$10.99

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

$29.99

Moroso - 89650 POWER-SPEED CALCULATOR

$31.65

Apera Instruments Premium Series PC8500 Portable Handheld pH/Conductivity Meter Kit (AI5524)

$40.1

2 in 1 Temperature pH Monitor Meter Tester Sensor Test Kit 0~14 pH Automatic Calibration BNC Electrode Probe for Hydroponic ph Aquarium Meter Water Lab Food Drinking Water pH of Saltwater/Seawater

$19.99

UIUZMAR Digital pH Meter pH TDS EC Meter for Hydroponic Nutrient Solution pH and EC Meter with LCD Display TDS Water Tester pH PPM Meter for DWC Setup Aeroponic Growing Tent Indoor Plant Grow

$22.79