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HTC 830L+ 3½-digit manual-range digital multimeter with backlit LCD display. Measures DC/AC voltage, DC current, resistance, diode, continuity, and transistor hFE. CAT II 600V safety-rated, powered by 2x AAA batteries.
The HTC-830L+ is a handheld digital multimeter designed per IEC-1010 standards for electronic measuring instruments, rated CAT II 600V overvoltage category with pollution degree 2. It features a 1999-count LCD display updating 2-3 times per second, with a backlight for low-light use, and manual range selection across DC voltage (200mV–600V), AC voltage (200V–600V), DC current (20µA–10A), and resistance measurement, plus diode/continuity testing and NPN/PNP transistor hFE testing (0-1000 range). It includes overload protection with an F200mA/250V quick-acting fuse, and Non-Contact Voltage (NCV) detection to check if a line is live without direct contact. Powered by 2x AAA 1.5V batteries, the package includes the meter, a set of test probes, and a user manual.
| Weight (g) | NA |
|---|---|
| Brand / Manufacturer | HTC |
| Key Specifications | 3½-digit digital multimeter with True RMS, NCV, data hold, continuity buzzer, and transistor testing. Measures up to 600V, 10A current, and 200MΩ resistance with CAT II 600V safety. |
| Manufacturer Part Number (MPN) | 830L+ |
| Country of Origin | Taiwan |
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25-in-1 magnetic suction screwdriver kit with interchangeable bits, magnetic handle, and extension rods. Includes 10 star/hexagon bits (T2–T15) among the full bit set, suited for precision electronics and small appliance repair.
DT830D pocket-size digital multimeter with LCD display, continuity buzzer, and square wave output. Measures DC/AC voltage, DC current, resistance, diode, and transistor hFE. Compact ABS body, includes test probe leads.
DT830D compact digital multimeter with large easy-to-read LCD display and test probes included. Measures voltage, current, and resistance with overload protection and low-battery indicator. Lightweight, portable design suited for hobbyists, students, and general troubleshooting.
HTC 830L+ 3½-digit manual-range digital multimeter with backlit LCD display. Measures DC/AC voltage, DC current, resistance, diode, continuity, and transistor hFE. CAT II 600V safety-rated, powered by 2x AAA batteries.
Adjustable "third hand" workbench aid combining a magnifying glass, soldering iron holder, and crocodile clamps with built-in LED illumination. Dual-lens magnification (35X main lens, 12X accessory lens) with 2 LEDs for low-light work. Runs on AAA/AA batteries, holds PCBs and small parts steady during soldering or inspection.
Adjustable "third hand" workbench aid combining a magnifying glass, soldering iron holder, and crocodile clamps with built-in LED illumination. Dual-lens magnification (35X main lens, 12X accessory lens) with 2 LEDs for low-light work. Runs on AAA/AA batteries, holds PCBs and small parts steady during soldering or inspection.
Noel 60/40 (Sn/Pb) rosin-core solder wire, 1.00mm diameter, 50g reel. Good solderability and insulation resistance, non-corrosive with no spattering.
Soldron 878D combo station integrating a digital soldering iron and hot air rework gun in one ESD-safe unit. Microcontroller-based smart circuit with precise digital temperature control, up to 480°C iron tip and 450°C hot air. Designed for SMD/SMT rework, desoldering fine-pitch ICs, and general electronics repair.
MOS-type multi-gas sensor detecting LPG, propane, hydrogen, methane, alcohol, CO, and smoke. Dual analog/digital output, 300–10000ppm range.
MOS-type CO gas sensor module using a unique dual-voltage heating/measurement cycle (5V heat, 1.5V measure) for accurate readings. Detects 10–2000ppm CO.
MOS-type air quality sensor module detecting NH3, NOx, alcohol, benzene, smoke, and CO2. Dual analog and digital (TTL) output with onboard potentiometer for threshold adjustment.
SGX electrochemical O2 sensor, 0–25% range, 20mm industrial footprint, drop-in replacement design. Standard 2-year or extended-life 3-year variants available
Winsen ZE03 ammonia detection module, electrochemical three-electrode sensing with dual UART/analog output. Detects 0–100ppm NH3 with built-in temperature compensation.
Winsen ZE03 general-purpose electrochemical CO detection module, three-electrode design with built-in microprocessor and temperature compensation. Dual UART and analog voltage output.
Description SGX electrochemical H2S sensor, 20mm industry-standard footprint, drop-in replacement for existing 4-series sensors. Linear output, fast <30s response time.
Winsen MC105 catalytic combustion flammable gas sensor, detects natural gas, LPG, CO, and alkanes. Bridge output voltage in linear proportion to gas concentration, 0-100%LEL range. Resistant to H2S poisoning and organosilicone contamination.
MT3608-based DC-DC step-up (boost) converter module, adjustable output via onboard potentiometer. Input 2–24V DC, output up to 28V DC, max 2A current, up to 93% efficiency.
Single-cell holder for one 18650 lithium-ion battery, with two 6-inch bare wire leads for power and ground. Embossed polarity marks for correct orientation.
TP4056-based single-cell Li-Ion battery charging module, Micro USB input, 1A adjustable charge current. Includes DW01 protection IC for over-voltage, under-voltage, and reverse-polarity safety.
Genuine Hi-Link HLK-5M05 AC-DC isolated switching power module, universal 90–264V AC input, fixed 5V DC 1A (5W) output. Ultra-thin, PCB-mount design as a compact alternative to bulky transformer supplies.
LM2596S DC-DC step-down (buck) converter module, adjustable output via onboard potentiometer. Input 3–40V DC, output 1.23–37V DC, up to 3A load capacity.
Genuine Bambu Lab replacement part cooling fan for the H2D Pro, H2D, and H2C 3D printer series. Works with the printer's air duct to rapidly cool extruded filament at the toolhead.
5V passive piezo/electromagnetic buzzer, needs an external PWM/AC drive signal to produce sound (won't beep on direct DC power). Sold as a pack of 10.
7x7x7mm illuminated tactile push button switch with built-in red LED, 4-pin through-hole mount. Combines momentary switching action with visual status indication in a single compact component.
Compact 3x6x4.5mm SMD tactile push button switch, momentary NO contact. Low-profile design suited for remote controls, wearables, handheld instruments, and embedded systems.
Micro-miniature 4-pin tact switch, TK-066S, 4.5x4.5mm footprint, snap-in through-hole mount. Momentary contact with excellent tactile feedback, good ESD resistance.
2-pin white tactile push-button switch, snap-in through-hole mount. Momentary SPST-NO contact, provides tactile "click" feedback confirming actuation.
24V sugar cube electromechanical relay, SPDT type, max 10A current capacity. Includes a built-in freewheeling diode to protect the driving microcontroller, PCB mount.
Electromechanical 5V relay for switching high-voltage/high-current loads via a low-voltage microcontroller signal. Contact rating 10A @ 250V AC / 10A @ 30V DC, PCB mount.
EBYTE dual-band 2.4/5.8GHz high-gain fiberglass antenna (8/10dBi) with an N-J connector, designed for long-range outdoor WiFi/2.4GHz links in harsh weather conditions
"A dual-band 2dBi rubber duck antenna covering the 824-960MHz and 1710-1980MHz GSM/cellular bands, for direct SMA mounting on enclosures or PCBs. "
"A 3dBi gain GSM magnetic-mount spring antenna with a 1-metre cable and SMA male connector, supporting 2G/3G networks and mountable on any metal surface."
"1W (30dBm) LoRa transceiver module operating at 433MHz, based on genuine imported Semtech SX1278/SX1276 RFICs, with an 8km rated line-of-sight range and UART interface. "
"Digi XBee3 Zigbee 3.0 module with an RP-SMA female antenna connector, built on the Silicon Labs EFR32MG SoC for multi-protocol mesh and point-to-point wireless connectivity. "
"Reyax RYLR998 next-generation AT-command LoRa module using a NUVOTON MCU and Semtech LoRa engine, in an ultra-compact 32x14x2.2mm form factor with up to 20km range. "
"Reyax RYLR896 AT-command controlled LoRa transceiver module built on Semtech's SX1276 engine, with a PCB-integrated antenna and DIP-friendly pin layout. "
"EBYTE new-generation LoRa serial module built on Semtech's LLCC68 chip, covering the wide 850.125-930.125MHz ISM range with a compact SMD IPEX-antenna form factor."
"EBYTE SX1262-based LoRa wireless module operating at 868MHz with UART interface, 22dBm output, and 5km range. Features FEC and an SMA-K antenna connector for long-range point-to-point links. "
Genuine Espressif ESP32-WROOM-32E-N8 WiFi + Bluetooth + BLE module with onboard PCB antenna, 8MB Quad SPI flash. Built around the ESP32-D0WD-V3 dual-core chip, adjustable 80–240MHz clock. A bare SMD module for embedding into custom PCB designs, not an assembled dev board.
Official Raspberry Pi 3 Model B+ single-board computer with Broadcom BCM2837B0 64-bit quad-core SoC at 1.4GHz. Features dual-band WiFi, Bluetooth 4.2/BLE, Gigabit Ethernet, and PoE support via a separate HAT. The final revision in the Raspberry Pi 3 range.
Compact Arduino Pro Mini-compatible board with ATmega328P-AU microcontroller running at 5V/16MHz. Comes without pre-soldered connectors, weighs under 2 grams. Requires an external FTDI/USB-to-serial adapter for programming, since it has no onboard USB.
Compact D1 Mini form-factor ESP32 development board combining dual-core CPU with WiFi and Bluetooth in a single chip. Small footprint similar to the ESP8266 D1 Mini, fully Arduino IDE compatible.
Genuine Microchip ATmega2560-16AUR 8-bit AVR microcontroller, TQFP-100 SMD package. 256KB Flash, 8KB SRAM, 4KB EEPROM, 16MHz — the same chip that powers the Arduino Mega 2560 and the Mega2560 Pro board sourced earlier, sold here as a bare component.
Compact Arduino Mega 2560-compatible development board built on the ATmega2560-16AU microcontroller with CH340G USB-to-UART chip. Functionally identical to the standard Arduino Mega 2560 in a much smaller 38 x 55mm footprint. Programs via Arduino IDE over Micro USB.
Edge Electronix ESP32 DevKit V1 development board with dual-core ESP32 microcontroller, WiFi and Bluetooth connectivity. 30+ GPIO pins with ADC, SPI, I2C, UART, and PWM support. USB programmable, compatible with Arduino IDE and other common IDEs for IoT projects
Arduino UNO R3-compatible development board with SMD-mounted ATmega328 microcontroller. Includes USB connectivity, 14 digital I/O pins, 6 analog inputs, and a 16MHz crystal oscillator. Fully compatible with the Arduino IDE and existing Arduino shields.
STMicroelectronics STM8S103F3P6 8-bit STM8 microcontroller, 20-pin TSSOP SMD package. 8KB Flash, 1KB RAM, up to 16MHz. A different architecture entirely (STM8 CISC core) from the AVR and PIC chips sourced elsewhere in this batch — commonly used in low-cost consumer electronics and DIY projects.
Microchip PIC18F26K22-I/SO 8-bit XLP microcontroller, 28-pin SOIC SMD package. 64KB Flash, ~3.8KB RAM, up to 64MHz — the higher-memory sibling of the PIC18F25K22 you sourced earlier, in the same 28-pin footprint. Currently out of stock on Robu.
Microchip PIC18F25K80-I/SS 8-bit XLP microcontroller with integrated ECAN controller, 28-pin SSOP SMD package. 32KB Flash, 4KB RAM, up to 64MHz. Different from the K22-series PIC18F25K22 sourced earlier — this one adds built-in CAN bus support for automotive/industrial networking.
Microchip PIC18F25K22-I/SO 8-bit XLP microcontroller, 28-pin SOIC SMD package. Same die and specs as the PIC18F25K22-I/SP (DIP-28) sourced earlier — 32KB Flash, 1.5KB RAM, up to 64MHz. Surface-mount variant for compact PCB designs.
Microchip ATmega1284P-AU 8-bit AVR RISC microcontroller, 44-pin TQFP SMD package. Largest-memory AVR chip in this batch — 128KB Flash, 16KB SRAM, 4KB EEPROM, up to 20MHz with JTAG debug support. Suited for more complex embedded designs needing extra memory headroom over the ATmega328/32A/16A.
Microchip ATmega32A-AU 8-bit AVR RISC microcontroller, 44-pin TQFP SMD package. 32KB Flash, 2KB SRAM, 1KB EEPROM, up to 16MHz with JTAG on-chip debug support. Same die family and feature set as the ATmega16A/ATmega328P you sourced earlier, in the SMD 44-pin form factor.
ATMEGA32A-PU-MICROCHIP-8 Bit MCU, AVR ATmega Family ATmega32 Series Microcontrollers, AVR, 16 MHz, 32 KB, 40 Pins, DIP.The ATMEGA32A-PU is a 8bit low power, high performance AVR RISC-based Microcontroller Unit featuring 32kB self-programming flash program memory, 2kB SRAM, 1kB EEPROM
Microchip ATmega16A-PU 8-bit AVR RISC microcontroller, 40-pin PDIP through-hole package. 16KB Flash, 1KB SRAM, up to 16MHz with JTAG on-chip debug support. A larger, older sibling in the same AVR family as the ATmega328P you sourced earlier.
Microchip ATmega328P-PU 8-bit AVR RISC microcontroller, 28-pin PDIP through-hole package. 32KB Flash, 2KB SRAM, operates up to 20MHz with 23 I/O pins. The same chip used at the heart of the Arduino UNO.
Microchip ATmega328P-PU 8-bit AVR RISC microcontroller, 28-pin PDIP through-hole package. 32KB Flash, 2KB SRAM, operates up to 20MHz with 23 I/O pins. The same chip used at the heart of the Arduino UNO.
AMS1117-ADJ adjustable low dropout (LDO) linear voltage regulator, 1A, SOT-223 SMD package. Provides an adjustable output from 1.25V to 12V using two external resistors. Includes thermal shutdown and current-limit protection, sold as a pack of 5.
Genuine Advanced Monolithic Systems AMS1117-5.0V fixed-output LDO linear voltage regulator, 1A, 3-pin SOT-223. Maximum input voltage 15V, 1.3V max dropout at full load. Provides quiet, low-noise regulation ideal for powering sensitive analog and digital circuits.
AMS1117-3.3V fixed-output low dropout (LDO) linear voltage regulator, 1A, SOT-223 SMD package. Fixed 3.3V output with 1.3V max dropout at full load. Includes thermal shutdown and current-limit protection for stable, low-cost regulation.
AMS1117-2.5V fixed-output low dropout (LDO) linear voltage regulator, 1A, SOT-223 SMD package. Fixed 2.5V output with 2.5V dropout at full 1A load. Includes thermal shutdown and current-limit protection, sold as a pack of 5.
Texas Instruments LM2664M6 inductorless charge pump DC-DC converter, SOT-23-6 SMD package. Generates a positive-to-negative (inverting) fixed output from a positive input, 40mA max output current. Small-footprint alternative to inductive converters for negative-rail generation.
Texas Instruments OPA333AIDBVR single-channel, zero-drift precision op-amp, SOT-23-5 SMD package. Ultra-low input offset voltage (2µV) and input bias current (70pA), with 350kHz gain bandwidth product. Compact 5-pin package suited for space-constrained precision analog designs.
Texas Instruments OPA2333AIDR dual-channel, zero-drift precision op-amp, SOP-8 SMD package. Ultra-low input offset voltage (2µV typical, 10µV max) and input bias current (70pA typical), with 350kHz gain bandwidth product. Suited for precision sensor signal conditioning and low-power instrumentation
Low-power I²C real-time clock IC providing accurate timekeeping and calendar functions for embedded systems, in SMD package. Compatible with the DS1307/IN1307 standard, tracking seconds, minutes, hours, day, date, month, and year with automatic leap-year compensation. Includes battery-backed NV SRAM for continuous timekeeping during power loss.
"IK Semicon IN1307N real-time clock IC with calendar, DIP-8 through-hole package. hubtronics Includes 56 bytes of battery-backed static RAM and low power consumption. hubtronics Communicates via a two-wire (I2C-style) serial bus for hours, minutes, seconds, and full calendar tracking."
HLF LM358 dual operational amplifier IC, DIP-8 through-hole package. Operates 3V–6V (this variant's rated range), integrates two independent, internally compensated op-amps in a single package. Widely used for signal amplification, comparators, and sensor interfacing.
HLF LM358 dual operational amplifier IC, DIP-8 through-hole package. Operates 3V–6V (this variant's rated range), integrates two independent, internally compensated op-amps in a single package. Widely used for signal amplification, comparators, and sensor interfacing.
XBLW MAX3485EDTR RS-485/RS-422 transceiver IC, SOP-8 surface-mount package. Half-duplex differential serial communication IC for industrial and embedded interface applications. Note: this is an XBLW-branded part, not genuine Maxim Integrated silicon.
Maxim MAX488 low-power RS-485/RS-422 line driver and receiver IC, DIP-8 through-hole package. Operates on a single 5V supply, supports half-duplex differential serial communication up to 250kbps. Slew-rate limited outputs reduce EMI and reflections on unterminated cable runs.
JCET BC547C NPN general-purpose transistor, TO-92-3 through-hole package. Rated 50V, 625mW, 100mA, high current gain (hFE 420–800).
Multicomp Pro 2N3906 general-purpose PNP silicon planar switching transistor, TO-92 through-hole package. Rated 40V, 625mW, 200mA collector current.
MDD MMBT3906 general-purpose PNP switching transistor, SOT-23 SMD package. Rated 40V, 200mW, 200mA collector current, hFE gain of 100–300.
JCET 2N3904 general-purpose NPN bipolar transistor, TO-92 through-hole package. Rated 40V, 625mW, 200mA collector current, hFE gain of 100–300
"MDD (Microdiode Semiconductor) MMBT3904-E general-purpose NPN switching/amplifier transistor rated 40V / 200mA in the compact SOT-23 package."
"Bourns CDSOT23-SM712 bidirectional TVS diode in a 3-pin SOT-23 package, for transient/ESD circuit protection with a 12V standoff and 26V clamping-class rating."
1N4148 general-purpose small-signal switching diode
1N5822 Schottky barrier rectifier diode with a low forward voltage drop
"Diodes Inc. 1N4007-T standard recovery rectifier diode rated 1kV reverse voltage and 1A forward current, with a 1V forward drop and 30A surge rating"
"An SS34 Schottky barrier diode in the DO-214AC (SMA) surface-mount package, designed for high-speed switching with a low forward voltage drop"
A general-purpose M7 surface-mount rectifier diode rated 50V / 1A,
"Kyocera AVX TAJ-series 10uF solid tantalum capacitor rated 10V in the compact Case R (2012-15mm) SMD package, ±20% tolerance"
"Kyocera AVX 1uF multilayer ceramic capacitor rated 50V in the compact 0805 package, sold as a pack of 5."
"Multicomp Pro 0.47uF (470nF) X7R multilayer ceramic capacitor rated 50V in the 1206 package with a ±10% tolerance."
"Kyocera AVX 0.47uF (470nF) 100V multilayer ceramic capacitor in the 0805 package"
"A general-purpose 22pF ceramic capacitor in the 1206 package, sold by Robu.in as a pack of 30 unbranded units"
"A general-purpose 22pF ceramic capacitor in the 0805 package, sold by Robu.in as a pack of 50 unbranded units."
"Yageo 10uF X5R multilayer ceramic capacitor rated 10V in the 1206 package, supplied on tape & reel, ±10% tolerance."
"Yageo CC-series 10uF X5R multilayer ceramic capacitor rated 25V in the compact 0805 package with a ±10% tolerance."
"Yageo 100nF (0.1uF) 100V X7R multilayer ceramic capacitor in an SMD 0805 package with a ±10% tolerance."
"A 100nF (0.1uF) 50V multilayer ceramic capacitor in an SMD 1206 package, marked with the standard ""104 code".
470µH SMD power inductor in 12x12x7mm ferrite drum core package. Rated 1A, used as DC-DC converter inductor in consumer electronics.
YXC 16MHz crystal oscillator in HC49 SMD package. Provides a stable resonance frequency reference for microprocessor/microcontroller clock circuits.
32.768kHz quartz crystal oscillator, commonly used for real-time clock (RTC) timing in microcontroller and embedded applications. Sold as a single unit.
16MHz quartz crystal oscillator in HC49/U metal can package. Provides a stable clock/timing reference for microcontrollers and digital circuits, sold in a pack of 5.
Bourns SRR1260 series shielded power inductor, 470µH ±10%, rated 950mA RMS current. Wirewound construction on a ferrite core, SMD mounting.
"Multicomp Pro 120Ω through-hole resistor from the MCRE series, rated 125mW with a general-purpose ±5% tolerance, axial leaded."
"Yageo RC-series 120Ω thick-film chip resistor in a 1206 package, rated 250mW (1/4W) with a precision ±1% tolerance."
"Multicomp Pro 120Ω thick-film chip resistor in an 0805 package, rated 125mW with a precision ±1% tolerance. Sold in packs of 10."
"Multicomp Pro 220kΩ metal film resistor from the MF25 series, rated 250mW with ±1% tolerance, axial leaded through-hole mount."
"Uniohm/Royal Ohm 220kΩ thick-film chip resistor in a 1206 package, rated 250mW with a standard ±5% tolerance. "
"Uniohm/Royal Ohm 220kΩ thick-film chip resistor in an 0805 package, rated 125mW with a standard ±5% tolerance."
"Yageo 20kΩ metal film resistor from the MFR-25 series, rated 250mW with ±1% tolerance, axial leaded through-hole mount."
"Yageo RC-series 20kΩ thick-film chip resistor in a 1206 package, rated 250mW with a standard ±5% tolerance"
"Yageo RT-series 20kΩ thin-film chip resistor in an 0805 package, rated 125mW with a tight ±1% tolerance"
Yageo 10kΩ metal film resistor from the MF0 series, rated 600mW with ±1% tolerance. Axial leaded, through-hole mount, high-stability type.
Generic 10kΩ, 1/4W (0.25W) thick film chip resistor in 1206 SMD package. Ceramic-body construction, supplied on a reel of 5000 for automated/bulk assembly.
Generic 10kΩ, 1/4W (0.25W) thick film chip resistor in 0805 SMD package with 3-digit resistance code marking.
Generic 2.2kΩ, 1/8W (0.25W as per detailed spec) metal film resistor with axial through-hole leads
Generic 2.2kΩ, 1/4W (0.25W) thick film chip resistor in 1206 SMD package. Ceramic-body construction, sold as a pack of 100.
Yageo 2.2kΩ chip resistor in 0805 SMD package. Sold as a pack of 50, with standard 3-digit resistance marking and good solderability.
Yageo MFR series metal film resistor, 220Ω, ±1% tolerance, 500mW (1/2W), axial leaded through-hole type. Rated 300V.
Yageo 220Ω, 1/4W (0.25W) chip resistor in 1206 SMD package. Sold as a pack of 50, with standard 3-digit resistance marking and good solderability.
Yageo thick film chip resistor, 220Ω ±1% tolerance, 0805 SMD package. Rated 1/16W (62.5mW), also denoted as 220E.
Multicomp Pro MCF series carbon film resistor, 1kΩ, 250mW (1/4W), ±5% tolerance, axial leaded through-hole type. Rated 250V.
Yageo 1kΩ, 1/4W (0.25W) chip resistor in 1206 SMD package. Sold as a pack of 50, with standard 3-digit resistance marking and good solderability.
YAGEO RT series precision thin film chip resistor, 1kΩ ±0.1% tolerance, 0805 SMD package. Rated 125mW, 150V, ±25ppm/°C temperature coefficient.
0 Ohm carbon film resistor, 0.25W, 5% tolerance, through-hole (axial) type. Also denoted as "0E" — commonly used as a jumper link on PCBs.
Yageo RC0201JR-070RL is a 0 Ω, 0201 thick-film SMD resistor used as a PCB jumper or circuit link, rated at 50 mW and 500 mA.
Yageo RC0201JR-070RL is a 0 Ω, 0201 thick-film SMD resistor used as a PCB jumper or circuit link, rated at 50 mW and 500 mA.
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