Datasheet

Specications Range Max Resolution Basic Accuracy

Relative Humidity 0 to 100% RH 0.1% RH ±5% RH

Air Temperature (ambient) -10 to 60℃ (14 to 140℉) 0.1℃ (0.2℉) ±1.0℃ (±2.0°F)

Response Time 1 sec

Connectivity Bluetooth (Free ExView App)

ExView App Compatibility iOS 13.0 and higher & Android 9.0 and higher

Transmission Distance >10 m up to 90 m line of sight

Power 3 x AAA (1.5 V) battery (included)

Operating Condition 0 to 40°C (32 to 104°F), ≤80% RH

Dimensions/ Weight 5.9 × 2.1 × 1.1 in (150 × 53 × 28 mm) / 2.8 oz (80.5 g)

Ordering

RH250W ........... Hygro-Thermometer with Connectivity to ExView App

Extech Connected 250W Series Additional Models

AN250W ........... Anemometer with Connectivity to ExView App

LT250W ............. Light Meter with Connectivity to ExView App

RPM250W ......... Laser Tachometer with Connectivity to ExView App

SL250W ............ Sound Level Meter with Connectivity to ExView App

Extech Connected Environmental Meters

The Extech 250W Series includes 5 meters that are compatible with the ExView Mobile App: AN250W Anemometer,

LT250W Light Meter, SL250W Sound Level Meter, RH250W Hygro-thermometer, and RPM250W Laser Tachometer.

Connect up to 8 meters of any combination to measure and trend various parameters to help accurately diagnose

environmental conditions and rotating equipment.

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Imagery for illustration purposes only. Specications subject to change without notice.