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Can be used to measure the water activity of foods. No matter when and where you need to measure water activity, WA-60A water activity meter is your unique choice. The Water Activity, mainly reflects the amount of free water in the state of food balance, the stability of food and the possibility of microbial reproduction, and the chemical, enzyme and physical changes that can cause the change of food quality. It is often used to measure the dryness enduring ability of the microorganisms. By measuring the water activity of food and selecting reasonable packing and storage methods, the use of preservatives can be reduced and the shelf life of food, grain and fruits and vegetables can be judged. * This is a real portable water activity meter, with a weight of only 100 grams, lighter than a mobile phone, and a precision of 0.03 aw, easy to measure water activity anytime and anywhere. * Sensors and readings are integrated. * Easy reading, water activity and temperature of the samples displayed together. * It has automatic shutdown, manual shutdown function and undervoltage alarm indication function. * Use USB data output to connect with PC. * Provide Bluetooth data output choice.

Unicore high accuracy gps module are based on the NebulasIV GNSS SoC. With all-constellation all-frequency support and designed for use in high- precision applications such as UAV, robots, precision agriculture, surveying, mapping, vehicle navigation, telecom and more, NebulasIV™ offers outstanding RTK and Heading performance at affordable pricing. High Precision GNSS Products Features Driven by a full-constellation and full-frequency RTK engine, Unicore's RTK algorithm takes advantage of triple and quad frequency observables, effectively mitigating ionospheric residuals. RTK can provide real-time centimeter-level glonass precision positioning, which requires real-time base station data. In practical applications, radio or wireless network communication is often interrupted. During the interruption of the base station data, RTK’s positioning accuracy decreases quickly. Unicore’s RTK KEEP technology can maintain the centimeter-level positioning accuracy for more than 10 minutes after the interruption. FAQS High Precision GNSS Products FAQs What is the impact of discontinuous transmission of differential data or excessive delay on RTK solution? The more stable the transmission of differential data is, the greater the help for differential positioning, and the more stable the accuracy will be. If the packet loss is very serious on the transmission link of differential data and the differential age usually exceeds 15, the reliability and accuracy of RTK will decrease. RTK eliminates ionospheric errors, tropospheric errors, satellite orbital errors, and satellite clock bias through the correlation of errors between the base station and rover station, thereby achieving centimeter-level positioning accuracy. If the transmission of the base station data is interrupted, the correlation between the rover station observations and the aforementioned errors in the base station data tens of seconds ago will be weakened, and the longer the time, the weaker the correlation, and then the positioning accuracy will drop fast. Ordinary receivers will not be able to provide RTK service after 20 seconds since the interruption of the differential data transmission. But Unicore's RTK KEEP technology, which uses models and estimation to eliminate the satellite orbital errors, clock bias, ionospheric and tropospheric errors, as well as other factors that affect the positioning results, can maintain centimeter- level accuracy for more than 10 minutes after the transmission of the differential data from the base station is interrupted. This greatly improves the availability of RTK service, especially for applications such as UAVs and forestry operations, where radio or wireless network communications are often interfered or blocked. Signal acquisition process The NebulasIV chip is upgraded on the basis of NebulasII. It can capture and track each frequency independently. For more information about precision gps receiver and accurate gps module, please feel free to contact us! If you are looking for a reliable gnss company, don't hesitate to contact us!

UM220-INS NL Industrial Grade Multi-GNSS Inertial Navigation Module and Positioning Module UM220-INS NL is an industrial grade dead reckoning gnss +MEMS module designed for in-dash vehicle navigation and high-end navigation. Based on Unicore's proprietary low power consumption GNSS SoC - UC6226, and with the built-in 6- axis MEMS, UM220-INS NL can directly output GNSS+MEMS integrated positioning results, It is most suitable for applications requiring high accuracy, high reliability, and high continuity. Product Characteristics Miniaturized All-in-One design Built-in MEMS device, output of integrated navigation and positioning results with one single module 100% positioning continuity even in tunnels or underground parking lots In-dash integrated navigation algorithm, supporting odometer pulse Supports A-GNSS Technical Specifications Performance Specifications Channel 64 channels, based on UFirebird Frequency1 GPS L1 BDS B1 Galileo E1 GLONASS G1 QZSS SBAS Modes Single-System Positioning Multi-System Positioning Time to First Fix (TTFF) Cold Start: <28s Reacquisition: < 1 s Positioning Accuracy (CEP) Horizontal: 2.0 m (Dual-System) < 5% x driving distance (inertial navigation, without GNSS signal) Velocity Accuracy(RMS)2 0.1 m/s (GNSS) 1PPS Support Sensitivity GNSS Tracking          -161 dBm Cold Start       -147 dBm Hot Start         -154 dBm Reacquisition  -157 dBm Update Rate 1 Hz / 5 Hz / 10 Hz Differential Data RTCM V3.X Data Format NMEA-0183, Unicore Physical Specifications Dimensions 12.2 x 16.0 x 2.6 mm Package 24 pin SMD Temperature Operating -40 °C ~ +85 °C Storage -45 °C ~ +90 °C Electrical Specifications Voltage 3.0 V ~ 3.6 VDC LNA Feed 3.0 V ~ 3.3 V Power Consumption3 90 mW Functional Ports 2 x UART (LVTTL) 1 x SPEED  1 x FWD 1 x 1PPS (LVTTL) NOTE:  1 Simultaneously running three systems at most. Using  command to switch between BDS and GLONASS.  2 Typical Value, < 3 0m/s open sky  3 Open sky, continuous tracking. There are many gnss companies, but we are one of the best choices for you.

UM220-IV NL Industrial Grade Multi-gps satellite navigation and Positioning Module Multi-constellation positioning module for the vehicle navigation market. It is based on Unicore's GNSS SoC - UC6226. Featuring high integration, low power consumption, anti-interference design, and A-GNSS support, the UM221-IV NV is suitable for automotive applications that demand high performance, reliability, and quality. Product Characteristics Excellent navigation and positioning performance, supporting single-system standalone positioning and multi-system joint positioning Anti-interference design, which enables the module to work stably under complex electromagnetic environments Low power consumption design Supports NMEA V4.1 protocol Surface Mount Technology which facilitates users to produce Raw observation data output (optional) Technical Specifications Performance Specifications Channel Based on 64-Channel SoC - UFirebird Frequency1 GPS L1 BDS B1 Galileo E1 QZSS Positioning Modes Single-system or multi-system Time to First Fix (TTFF)2 Cold Start < 28 s Hot Start: < 1 s Re-acquisition < 1 s AGNSS < 4 s 1PPS Support Sensitivity GNSS Tracking           -161 dBm Acquisition       -147 dBm Hot Start          -151 dBm Reacquisition   -158 dBm Update Rate 1 Hz Data Format NMEA 0183, Unicore Physical Specifications Dimensions 12.2 x 16.0 x 2.4 mm Weight 0.8 g Package 24 pin SMD Temperature Operating -40 °C ~ +85 °C Storage -45 °C ~ +90 °C Electrical Specifications Voltage 3.0 V ~ 3.6 VDC LNA Feed 3.0 V ~ 3.3V, < 100 mA Power Consumption2 50 mW Functional Ports 2 x UART (LVTTL) 1 x 1PPS (LVTTL) Functional Characteristics AGNSS * Raw observation output NOTE: * Supported by specific firmware 1 Open sky, using TruePoint RTK algorithm 2 Open sky, continuous tracking For more information about gps satellite system and buy gps module, please feel free to contact us!

UM981 GPS/BDS/GLONASS/Galileo/QZSS All-constellation Multi-frequency RTK/INS Integrated Positioning Module Unicore's new-generation proprietary RTK/INS integrated navigation module. The module integrates a high-speed floating-point processor and an RTK-dedicated coprocessor, enabling it to output IMU raw data at 100Hz and RTK data at 50Hz, respectively. The on-board MEMS chip and algorithm ensure continuous, high- quality positioning results in GNSS denied environments such as buildings, tunnels, overpasses, and shaded areas. With its high precision and performance, the UM981 is well-suited for surveying and precision agriculture, among other applications. Features Based on the new generation GNSS SoC - NebulasIV, which integrates RF, baseband, and high precision algorithm All-constellation multi-frequency RTK engine and advanced RTK technology Instant RTK initialization technology 60 dB narrowband interference suppression and interference detection Heading2 technology to provide orientation information STANDALONE single-station high-precision positioning technology Supports B2b-PPP and E6-HAS On-board MEMS integrated navigation and U-Fusion technology to ensure continuous positioning when loss of lock on GNSS signals Technical Specifications Performance Specifications Channel 1408 channels, based on NebulasIV Frequency GPS L1C/A, L1C, L2C, L2P(Y), L5 BDS B1I, B2I, B3I, B1C, B2a, B2b GLONASS G1, G2, G3 Galileo E1, E5a, E5b, E6 QZSS L1C/A, L1C, L2C, L5 NavIC L5 SBAS L1C/A Single Point Positioning(RMS) Horizontal: 1.5m Vertical: 2.5m DGPS (RMS) Horizontal: 0.4m Vertical: 0.8m RTK (RMS) Horizontal: 0.8cm+1ppm Vertical: 1.5cm+1ppm PPP（RMS）  Horizontal: 5cm Vertical: 10 cm Tilt Measurement 10 mm + 0.7 mm/°tilt  (accuracy < 2.5 cm within 30°) Positioning Error of INS only < 5 % of the distance traveled without GNSS signals Observation Accuracy (RMS) BDS GPS GLONASS Galileo B1I/B1C/L1 C/A/G1/E1 Code 10 cm 10 cm 10 cm 10 cm B1I/B1C/L1C/A/G1/E1 Carrier Phase 1 mm 1 mm 1 mm 1 mm B2I/B2a/B2b/L5/E5a/E5b Code 10 cm 10 cm 10 cm 10 cm B2I/L2P(Y)/L2C/G2/E5b Carrier Phase 1 mm 1 mm 1 mm 1 mm B3I/B2a/E5a/L5 Code 10 cm 10 cm 10 cm 10 cm B3I/B2a/E5a/L5 Carrier Phase 1 mm 1 mm 1 mm 1 mm Time Accuracy (RMS) 20 ns Velocity Accuracy (RMS) 0.03 m/s Cold start < 12 s Initialization Time < 5 s (typical) Initialization Reliability > 99.9% Data Update Rate 100 Hz (IMU RAW Data) 50 Hz* (RTK) Differential Data RTCM V3.X Data Format NMEA-0183, Unicore Physical Characteristics Packaging 54 pin LGA Dimension 17.0 × 22.0 × 2.6 mm Weight 1.91 g ± 0.03 g Environmental Specifications Working temperature -40 °C ~ +85 °C Storage Temperature -55 °C ~ +95 °C Humidity 95% No condensation Vibration GJB150.16A-2009, MIL-STD-810F Shock GJB150.18A-2009, MIL-STD-810F Communication Interface 3 x UART (LVTTL) 1 x I2C* 1 x SPI* 1 × CAN* (shared with UART3) Note: Items marked with * are only supported by specific firmware. For more information about unicore communications and anti-jamming, please feel free to contact us!

Industrial Grade Multi-GNSS Navigation and Positioning Module Multi-constellation compact navigation module designed for the automotive market. Based on Unicore's GNSS SoC - UC6226, it boasts high integration, low power consumption, anti-interference design, compact size, and is suitable for cost-effective applications. Product Characteristics Compact design, small size Excellent navigation/positioning performance, supports single system standalone positioning and multi-system joint positioning Anti-jamming design to ensure the module working stably in complex electromagnetic environment Low power consumption Supports A-GNSS and DGNSS Compatible with mainstream 10.1 x 9.7 mm GNSS modules, saving cost of replacement SMD package Technical Specifications Performance Specifications Channel Based on 64-Channel SoC - UFirebird Frequency1 GPS L1 BDS B1 GLONASS G1 Galileo E1 QZSS SBAS Modes Single-System Positioning Multi-System Positioning Time to First Fix (TTFF)2 Cold Start: < 28 s Hot Start < 1 s Reacquisition: < 1 s AGNSS < 4 s Positioning Accuracy(CEP)3 Horizontal: 2.0 m Vertical: 3.0 m Velocity Accuracy(RMS)3 0.1 m/s (GNSS) 1PPS Support Sensitivity GNSS Tracking            -161 dBm Acquisition        -146 dBm Hot Start           -151 dBm Reacquisition    -158 dBm Update Rate 1 Hz Data Format NMEA 0183, Unicore Physical Specifications Dimensions 9.7 x 10.1 x 2.2 mm Package 18 pin SMD Temperature Operating -40 °C ~ +85 °C Storage -45 °C ~ +90 °C Electrical Specifications Voltage 3.0 V ~ 3.6 VDC LNA Feed 3.0 V ~ 3.3V, < 100 mA Power Consumption4 90 mW Functional Ports 1 x UART (LVTTL) 1 x 1PPS (LVTTL) Functional Characteristics Passive Antenna, Active Antenna AGNSS * NOTE: Supported by specific firmware 1 Simultaneously running three systems at most.Using command to switch between BDS and GLONASS. 2 Open sky. 3 Typical value <30m/s open sky. 4 Open sky, continuous tracking. For more information about unicore gnss and gps plus glonass, please feel free to contact us!

TK100C Cotton Moisture Meter Cotton Moisture Meter is a valuable testing instrument during the cotton collection, processing and when buying or selling. The newly designed TK100C utilizes the relationship between moisture content and electrical resistance to effectively measure the moisture content of cotton, seed-cotton and cotton bale. Features: * Its integrative design convenient to carry outside for testing. * Digital display with back light gives exact and clearly reading although you stay at the somber conditions. * It is small in size, light in weight ,easy to carry out for fieldwork if needed. * Auto power off after 5 minutes from last operation. Specifications: Digital LCD with backlight Measuring range: 5%-40% Operating conditions: Temperature:0-60℃ Humidity:5%-90%RH Resolusion:0.1 Accuracy: ± 0.5(main moisture range) Power supply: 4x1.5 AAA size (UM-4) battery Dimensions: 460mm×75mm×35mm Weight:203g (not including batteries)

Minimum Order: 10 long tons

Automotive Grade Multi-GNSS Dual-frequency High Precision RTK Positioning Module UM680A is a high precision GNSS dual-frequency navigation car gps module developed by Unicore for the intelligent driving market. Based on the proprietary multi-system dual-frequency high-performance SoC-UC6580A, the module supports multi-system dual-frequency joint positioning with centimeter- level accuracy, and it operates at temperatures up to 105 °C. Ordering Information Supply at multiples of 250 pieces Product Characteristics Supports concurrent operation of vechicle gps, BDS, GLONASS and Galileo Dual-frequency single point positioning, providing higher accuracy and reliability compared to single-frequency solution Supports A-GNSS to reduce the TTFF GNSS chip qualified according to AEC-Q100 and production process conforms to IATF16949 Anti-jamming design to ensure the module working stably in complex electromagnetic environment Centimeter-level positioning accuracy & raw data output Technical Specifications Performance Specifications Channel 96 channels, based on UFirebirdII Frequency GPS L1C/A, L5 BDS B1I, B1C*, B2a GLONASS G1* Galileo E1, E5a NavIC L5* QZSS L1, L5 SBAS L1C/A Modes Single-system standalone positioning Multi-system joint positioning Time to First Fix (TTFF) Cold Start: ≤ 26 s Hot Start: ≤ 2 s Re-acquisition : ≤ 2 s DGNSS (RMS) Horizontal: 1.5 m (open sky) Vertical: 2.5 m (open sky) RTK (RMS) Horizontal: 1 cm + 1 ppm (open sky) Vertical: 1 cm + 1 ppm (open sky) Velocity Accuracy(RMS)1 0.05 m/s 1PPS 20 ns Sensitivity (GNSS) BDS+GPS+GLONASS+Galile Tracking: -162 dBm Cold start: -147 dBm Hot Start：-157 dBm  Reacquisition: -158 dBm Data Update Rate 1 Hz / 5 Hz / 10 Hz Correction RTCM V3.X Data Format NMEA 0183, Unicore Physical Specifications Dimensions 22.0 x 17.0 x 2.6 mm Package 54 pin, LGA Operating Temperature -40°C ~ +85 °C / 105 °C Storage Temperature -40°C ~ +85 °C /105 °C Electrical Specifications Voltage 2.7 V ~ 3.6 V DC LNA Feed Power 2.7 V to 3.3 V, <100 mA Power Consumption 270 mW Interfaces 2 × UART(LVTTL) 1 × I2C* 1 × SPI* 1 × 1PPS(LVTTL) Functional Characteristics Passive Antenna, Active Antenna, AGNSS * NOTE: * Supported by specific firmware              1 Open sky, continuous tracking For more information about gnss board, please feel free to contact us!

Features Adopt digital signal sensing technology, good measurement repeatability, fast response and high sensitivity. Digital display with back light gives exact and clearly reading although you stay at the somber conditions. Able to measure Humidity, Temperature, Wet Bulb Temperature, Optional USB or BlueTeeth Data hold function. Low battery alert. SPECIFICATION Display:10mm Dispaly Parameters Measured: Humidity and Temp, Wet Bulb Temp R.H range: 10-95% R.H resolution: 0.1RH% R.H accuracy: 2.5%±1%RH Temp range: -20℃~60℃(-4~140℉) Temp resolution: 0.1℃/0.1℉ Temp accuracy: ±0.5°C Wet Bulb Temp range:-20℃~60℃(-4~140℉) Wet Bulb Temp resolution: 0.1℃/0.1℉ Wet Bulb Temp accuracy: ±0.5°C Sampling Time: less than 0.5s Power supply: 4x1.5 AAA size (UM-4) battery Dimensions: Main Unit: 185mm×70mm×30mm Weight: 125g (not including batteries)

UM620A Automotive Grade Dual-frequency Multi-System dual GNSS Positioning Module Dual-frequency navigation module based on the proprietary multi-system dual- frequency high-performance SoC, UC6580A. The module supports multi-system dual- frequency joint positioning or single-system standalone positioning, ensuring high positioning accuracy even in complex environments such as multi-path surroundings. It is a good choice for vehicle navigation. Product Characteristics Automotive grade dual frequency gps navigation and positioning module Supports GPS L1C/A, L5; BDS B1I/B1C*, B2a; GLONASS G1; Galileo E1, E5a; NavIC L5*; QZSS; SBAS Conforms to AEC-Q100 standard and IATF16949 standard Anti-interference design, working stably in complex electromagnetic environments Technical Specifications Performance Specifications Channel 96 channels, based on UFirebirdII Frequency GPS L1C/A , L5 BDS B1I, B1C*, B2a GLONASS G1 Galileo E1, E5a NavIC L5* QZSS L1, L5 SBAS Modes Single-System Positioning Multi-System Positioning Time to First Fix (TTFF)1 Cold Start < 26 s Hot Start < 2 s Re-acquisition < 2 s Positioning Accuracy (CEP)1 Horizontal: 1.5 m(Dual-frequency quad- system ) Velocity Accuracy (RMS)2 0.05 m/s 1PPS 20ns Sensitivity GNSS Tracking            -162 dBm Cold Start         -148 dBm Hot Start           -158 dBm Reacquisition    -160 dBm Update Rate 1 Hz / 5 Hz* / 10 Hz* Data Format NMEA 0183, Unicore Physical Specifications Dimensions 12.2 x 16.0 x 2.4 mm Package 24 pin, SMD Temperature Operating -40 °C ~ +85 °C Storage -40 °C ~ +85 °C Electrical Specifications Voltage 2.7V ~ 3.6 V DC LNA 2.7V ~ 3.3 V, <100 mA Power Consumption3 300 mW Functional Ports 2 × UART (LVTTL) 1 × I2C* 1 × SPI* 1 × 1PPS (LVTTL) Functional Characteristics Passive Antenna, Active Antenna AGNSS* Note: Items marked with * are only supported by specific firmware. 1 Open sky 2 Typical value, < 30 m/s open sky  3 68% at 30 m/s for dynamic operation，open sky 4 Open sky, continuous tracking For more information about gnss price, please feel free to contact us!

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