RH820/RH820U Hygrometer/Thermometer Specifications

Display: 3.5" digital LCD, maximum reading 1999

Low battery indicator: Displays a 'Low Battery' icon when battery voltage drops below operating level

Operating environment: 0 to 50°C (32 to 122°F), <80% RH

Storage environment: -20 to 60°C (-4 to 140°F), 0 to 70% RH, with batteries removed from the device

Accuracy: Accuracy at 23°C ±5°C and <75% RH

Battery: Four 1.5V AAA batteries (included)

Dimensions: 160 H x 83 W x 38 mm D (6.3 x 3.3 x 1.5")

Weight: Approx. 265 g (0.6 lbs), including batteries

Temperature range: -50 to 1000°C (-58 to 1832°F)

Accuracy: ±(0.1%rdg + 1°C) from -50 to 1000°C; ±(0.1%rdg + 2°F) from -58 to 1832°F

Temperature sensor: Thermistor

Range: 0 to 60°C (32 to 140°F)

Resolution: 0.1°C / °F

Accuracy: ±2°C from 0 to 10°C, ±0.5°C from 10 to 45°C; ±2°C from 45 to 60°C; ±4°F from 32 to 50°F, ±1°F from 50 to 113°F; ±4°F from 113 to 140°F

Relative humidity sensor: Capacitive humidity sensor

Range: 0 to 100% RH, non-condensing

Accuracy: ±2.5% at 25°C (77°F), 10% to 90% RH; ±5% at 25°C (77°F), 0–10% RH and 90–100% RH

Sensor response time for 90% of full scale: Typical 60 seconds

Sensor hysteresis (10% to 90% to 10% RH): Typically ±1% RH

RH820W frequency range: 910~920 mHz, low current consumption <1 mA, transmission distance up to 25M

RH820/RH820U Hygrometer/Thermometer Ordering Guide

RH820: Handheld humidity/temperature meter

RH820U: Handheld humidity/temperature meter with USB interface

RH820W: Handheld humidity/temperature meter with wireless interface

HH800-ADAPTOR: AC power adapter (sold separately, **USB model)

Standard accessories: Includes four AAA batteries, K-type thermocouple, rubber sleeve, and user manual. RS820W also comes with software and receiver, RH820U comes with software and USB cable.