LSJ HW-W01 Handheld Weather Meter | IP67 12-in-1 Anemometer

Core Capabilities

Wind, Temperature and Pressure Read Where the Crew Is Standing

Twelve meteorological readings in a 108 g handheld unit with a 1.8-inch colour LCD, a 0.3–60 m/s impeller and an IP67 sealed body — so an incident commander reads the microclimate on the fireline instead of a forecast from a station kilometres away.

LSJ HW-W01 handheld weather meter with the flip cover open, exposing the top-mounted anemometer impeller

CAPABILITY 01

Twelve Readings on One 1.8-Inch Screen

Wind speed, wind direction, air temperature, humidity, barometric pressure, compass azimuth, dew point, wet bulb, wind chill, heat stress, density altitude and altitude all come from a single instrument that samples and displays them together. Maximum and minimum values, average wind speed and measurement logs are held onboard, and built-in Bluetooth moves the record to a phone or a report.

Twelve parameters from one handheld unit
Max/min values, average wind speed and onboard logs
Bluetooth transfer for incident reporting

CAPABILITY 02

Fireline Wind: 0.3–60 m/s at ±3%, With a Compass Bearing

Wind speed spans 0.3 to 60 m/s with ±3% accuracy — calm forest air through storm-force gusts. An electronic compass reports wind direction as a 0–360° azimuth, so a shift is read as a bearing rather than estimated by feel, and an external wind vane is available when the meter is used as a fixed station.

0.3–60 m/s range at ±3% accuracy
0–360° electronic compass for wind direction
Optional external wind vane for fixed observation

Manufacturer graphic of the HW-W01 with IP67 and 0.3–60 m/s call-outs, a screen showing wind speed, wind direction, temperature, humidity, pressure and compass values, and RoHS, ISO, ECM, CE and SGS marks as printed on LSJ product material

HW-W01 against a storm sky, with an enlarged view of its colour screen showing wind speed, temperature, humidity, air pressure, wind chill and dew point

CAPABILITY 03

Environment Readings and the Indices Derived From Them

Air temperature covers −40 to +75 °C (±0.3 °C, 0.1 °C resolution), humidity 0–95 %RH (±2 %RH) and pressure 300–1100 hPa (±0.5 hPa) for storm-trend awareness. From those inputs the meter derives dew point, wet bulb, wind chill, heat stress, density altitude and altitude — the numbers that decide crew exposure and how hard a fire is likely to run.

−40 to +75 °C, 0–95 %RH, 300–1100 hPa
Dew point and wet bulb for fire-behaviour judgement
Wind chill, heat stress and density altitude for crew and aircraft limits

CAPABILITY 04

An IP67 Body That Keeps Reading in Rain, Mud and Dust

The housing is sealed to IP67 — dust-tight and protected against water immersion — and rated to operate from −20 °C to +60 °C. When a user-set temperature threshold is crossed, the meter raises an over-temperature alarm through vibration and screen flashing, so the warning reaches an operator through gloves, noise and smoke.

IP67 sealed, dust-tight and waterproof housing
Operating range −20 °C to +60 °C
Vibration plus screen-flash over-temperature alarm

Rear of the HW-W01 showing the sealed housing, structural fasteners and protected sensor cavity

Front of the HW-W01 closed into its pocket-sized body with the flip cover shut over the impeller

CAPABILITY 05

108 g, 122 mm, and a Full Shift on One Charge

At 108 g (±10 g) and 122 × 45 × 25 mm (±1 mm) the meter rides in a turnout-coat pocket, and the flip cover seals the impeller between readings. A 3.7 V rechargeable polymer lithium-ion battery delivers ≥8 hours of continuous operation over a Type-C connection, and automatic power-off is adjustable from 1 to 60 minutes.

108 g and 122 mm — pocket carry
≥8 h continuous runtime, Type-C charging
1–60 minute adjustable automatic power-off

CAPABILITY 06

Handheld Patrol, or a Fixed Observation Point With the Field Kit

Standard supply is the meter, adapter, instruction manual and packaging box. For a command post or fire camp, LSJ supplies a field kit that adds the external main wind vane, a tripod and a carry case, converting the same meter into a stationary observation set. State the deployment mode when ordering — the kit is configured to match it.

Standard: meter, adapter, manual and box
Field kit: external wind vane, tripod and carry case
Handheld patrol or fixed observation from one meter

HW-W01 field kit laid out with the numbered parts: packaging box, charger set, weather meter main unit, main wind vane and tripod

Equipping crews for the next fire season?

Tell us the deployment mode — handheld patrol or fixed observation point — the number of units, and the destination market for the CE/RoHS certificate pack, and we will confirm configuration and lead time.

Applications

Where a Handheld Weather Meter Changes a Decision

Specified for wildland fire, flood response, mountain search and rescue, and cold-weather deployment — anywhere a decision on the ground depends on wind, temperature or pressure at that point. The meter measures where the operator stands; it does not forecast and it does not model fire behaviour.

Wind-driven fire running through a conifer stand under heavy smoke

Wildland & Forest Firefighting

Wind shifts reverse firelines in seconds, and temperature and humidity decide how fast a front will run. A 0.3–60 m/s reading with a compass bearing, plus temperature, humidity and wet bulb, supports firebreak planning and the watch for re-ignition.

Rescue boat and crew working through flooded streets

Flood & Water Rescue

Boat operations and storm response face sudden gusts and fast-moving pressure changes. The IP67 sealed body logs wind, pressure and humidity trends in rain and spray, without a crew member leaving the craft to read an instrument ashore.

Snow-covered mountain ridge under a clear sky

Mountain & Wilderness SAR

High elevation brings wind chill, density-altitude effects and rapid disorientation. Altitude, density altitude, wind chill and compass azimuth come from one 108 g unit that can be carried on every ascent rather than split across a pack.

Operational Scenario

Wind Shift on the Fireline: An Illustrative Deployment

The scenario below illustrates how the meter may be used on a fireline. It is not a documented customer case study.

Fire burning through a conifer stand under heavy smoke, the conditions in which a wind reversal is most costly

Example: A Crew Holding a Firebreak When the Wind Turns

Situation

A hand crew is holding a firebreak on a slope. The district forecast calls for light wind, but slope, fuel and afternoon heating can produce a local reversal that no regional station reports. The crew leader needs the wind at the break, not at the nearest weather station.

Potential use

The leader takes a reading with the impeller facing into the wind — speed, compass azimuth, temperature and humidity — and reads wet bulb and heat stress from the same screen. Readings are repeated at fixed intervals and logged onboard, so the trend is visible rather than remembered. The meter reports conditions at the point where the operator stands: it does not forecast, does not model fire behaviour and does not replace an incident meteorologist.

Decision support

That trend may inform whether the crew holds, widens the break or withdraws, and how long a work cycle is sustainable under the measured heat load, within the incident commander's procedures. Outcomes depend on reading discipline, terrain, fuel state and the crew's own trigger points.

Why Work With LSJ

Manufacturing Capability
Built Around Procurement Needs

Explore the production facilities, compliance documents, and international exhibitions presented in the materials below. Confirm product-specific certifications and current manufacturing capabilities with the supplier before placing an order.

16years Manufacturing
experience

4document types CE · ISO · MSDS · RoHS
shown in supplied image

GLOBAL International trade-show
engagement

Supplied collage of LSJ manufacturing, assembly, and testing areas

01 · PRODUCTION

Assembly and Testing Capability

The supplied company materials describe 16 years of manufacturing experience alongside assembly and testing activities. Confirm the applicable product line, current capabilities, and lead time when requesting a quote.

Supplied collage of CE, ISO, MSDS, and RoHS-related documents

02 · CERTIFIED

Documentation for Due Diligence

Request current, product-specific documents and verify their scope before use in a tender or import review.

CEISOMSDSRoHS

LSJ team and visitors at international trade exhibitions

03 · GLOBAL

Product Discussions at Global Events

Explore images of industry exhibitions and in-person discussions with international partners and emergency-response professionals.

Click an image for a larger view · Request a facility visit or document verification

Request an Operating Demonstration

Ask for the parameter walk-through, the alarm-threshold set-up and the Bluetooth log-transfer demonstration

Operation Video

See the HW-W01 Take a Reading and Raise Its Alarm

Ask for a walk-through of the keypad, the display pages on the 1.8-inch colour screen, the over-temperature threshold set-up and the vibration-plus-flash alarm, and the transfer of a logged reading over Bluetooth.

Readings are taken by facing the impeller into the wind; no set-up routine is required
Alarm thresholds are set by the operator and announced by vibration and screen flashing
Logs, maximum and minimum values and average wind speed stay on the unit until transferred

Technical Specifications

HW-W01 Specification Sheet

Values below follow the manufacturer's published page for this model. Items marked “to be confirmed” are not stated in the source material and must be obtained in writing before procurement.

Parameter	Stated Specification
Brand	LSJ — Beijing LSJ Technology Development Co., Ltd.
Model	LSJ HW-W01
Product type	Handheld multiparameter weather meter (12-in-1 anemometer)
Measured parameters	Wind speed, wind direction, air temperature, relative humidity, barometric pressure, compass azimuth, dew point, wet bulb, wind chill, heat stress, density altitude and altitude
Wind speed range	0.3–60 m/s, accuracy ±3%
Wind speed resolution	To be confirmed — not stated in the source material
Wind direction	Electronic compass measuring azimuth angle and direction, 0–360°; optional external wind vane for fixed use
Compass accuracy	To be confirmed — the source states the 0–360° range but no accuracy figure
Air temperature	−40 to +75 °C; resolution 0.1 °C; accuracy ±0.3 °C
Relative humidity	0–95 %RH; accuracy ±2 %RH (resolution not stated)
Barometric pressure	300–1100 hPa; accuracy ±0.5 hPa (resolution not stated)
Derived indices	Dew point, wet bulb, wind chill, heat stress, density altitude and altitude
Altitude range	To be confirmed — altitude and density altitude are reported but no range is published
Display	1.8-inch colour LCD
Alarm modes	User-set over-temperature threshold alarm, delivered by vibration and screen flashing
Data memory	Maximum and minimum values, average wind speed and onboard measurement logs
Log capacity	To be confirmed — the source states onboard storage but no record count or interval
Battery	3.7 V rechargeable polymer lithium-ion battery; ≥8 hours of continuous operation
Charging	Type-C interface with charging indicator
Automatic power-off	Adjustable from 1 to 60 minutes
Weight	108 g (±10 g)
Dimensions	122 × 45 × 25 mm (±1 mm)
Protection rating	IP67 — dust-tight and protected against water immersion
Operating temperature	−20 °C to +60 °C
Storage temperature	−30 °C to +60 °C
Wireless	Built-in Bluetooth
Power switch	Light-touch power-on; long-press to power off
Standard supply	HW-W01 weather meter, adapter, instruction manual and packaging box
Optional field kit	External main wind vane, tripod and carry case, supplied as a complete field kit
Compliance documentation	Manufacturer's product material presents CE and RoHS marks together with ISO, SGS and ECM quality markings — request the certificate pack naming this model for your destination market
Referenced standard	To be confirmed — request the applicable national or tender standard and the matching test reports
Manufacturer	Beijing LSJ Technology Development Co., Ltd. — in-house R&D and production; the company states that its instruments are used by emergency response and rescue organisations

Frequently Asked Questions

Selection, Use and Documentation

Answers to questions from fire services, rescue teams, civil-defence units and procurement officers. Confirm all commercial and technical terms with the supplier.

What does the HW-W01 measure?

Twelve parameters: wind speed, wind direction, air temperature, relative humidity, barometric pressure, compass azimuth, dew point, wet bulb, wind chill, heat stress, density altitude and altitude. The first six are measured directly; the rest are derived from those inputs and shown on the same 1.8-inch colour screen.

What wind range and accuracy does it offer?

Wind speed covers 0.3 to 60 m/s with ±3% accuracy, from calm forest air to storm-force gusts. Wind direction is read from an electronic compass as a 0–360° azimuth; the source material publishes no compass accuracy figure, so ask for it in writing if your procedure depends on it.

Is it waterproof enough for rain, spray and washdown?

Yes — the housing is rated IP67, meaning dust-tight and protected against water immersion, and the meter is rated to operate from −20 °C to +60 °C. The flip cover seals the impeller between readings. Note that the rating applies to the meter; no IP rating is published for the optional tripod or wind vane.

How long does the battery last, and how is it charged?

A 3.7 V rechargeable polymer lithium-ion battery supports ≥8 hours of continuous operation and charges over a Type-C connection with a charging indicator. Automatic power-off is adjustable from 1 to 60 minutes to conserve power between observations. The source states no battery capacity in Wh or mAh.

Does it record data, and can it be used as a fixed station?

It stores maximum and minimum values, average wind speed and measurement logs onboard, and built-in Bluetooth transfers them for reporting; the source publishes no log capacity. Handheld use needs no installation, while stationary use is available with the optional field kit — external wind vane, tripod and carry case — for a command post or fire camp.

Supplier Support

Support from Selection to Service

Configuration and Kit Selection

Confirm how the meter will be carried and where it will be read — handheld patrol or fixed observation point — and agree the field kit contents, the number of units and the parameter set your procedure requires.

Tender and Documentation Support

Request the CE and RoHS certificate pack naming this model, the ISO/SGS quality documents, and any calibration or verification records your tender asks for. Confirm in writing which marks apply to the HW-W01 itself rather than to the company.

Service, Spares and Batteries

Confirm warranty, spare wind vanes, tripod spares and battery replacement for your delivery market, together with the lithium-battery shipping paperwork the consignment requires.

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